Digital Commons Network^™

The Modified Collocation Trefftz Method And Laplacian Decomposition For Solving Two-Dimensional Stokes Problems, Chia-Ming Fan, Hong-Huei Li, Chung-Lun Kuo

Journal of Marine Science and Technology–Taiwan

In this paper, the two-dimensional Stokes problem is analyzed by the modified collocation Trefftz method (MCTM) and the Laplacian decomposition. The coupled Stokes equations are converted to three Laplace equations by utilizing the Laplacian decomposition and then the boundary-type meshless MCTM is adopted to solve the resultant Laplace equations. The MCTM, free from mesh and numerical quadrature, is derived from the conventional Trefftz method by considering the characteristic length of the domain, which stabilize the numerical scheme and obtain highly accurate results. Besides, the solutions are expressed as the linear combination of T-complete functions and the velocity as well as …

Structural And Kinetic Studies On Metallo-Β-Lactamase Imp-1, Dionne H. Griffin, Timothy K. Richmond, Carlo Sanchez, Abraham Jon Moller, Robert M. Breece, David L. Tierney, Brian Bennett, Michael W. Crowder

Physics Faculty Research and Publications

In an effort to probe for metal binding to metallo-β-lactamase (MβL) IMP-1, the enzyme was overexpressed, purified, and characterized. The resulting enzyme was shown to bind 2 equiv of Zn(II), exhibit significant catalytic activity, and yield EXAFS results similar to crystallographic data previously reported. Rapid kinetic studies showed that IMP-1 does not stabilize a nitrocefin-derived reaction intermediate; rather, the enzyme follows a simple Michaelis mechanism to hydrolyze nitrocefin. Metal-substituted and metal-reconstituted analogues of IMP-1 were prepared by directly adding metal ion stocks to metal-free enzyme, which was generated by dialysis versus EDTA. UV–vis studies on IMP-1 containing 1 equiv of …

Electron Energy Dependent Charging Effects Of Multilayered Dielectric Materials, Gregory Wilson, Amberly Evans Jensen, Jr Dennison

Presentations

No abstract provided.

For The Good Of The Multicultural Society In One Urban Third Grade, Margaret Lally Queenan

NERA Conference Proceedings 2011

This study used ethnographic participant observation methods to analyze weekly teaching in five third grade urban classrooms. The theoretical background included the National Reading Panel and the RAND Reading Study Group’s advocacy of comprehension strategies and concern that strategies are taught for their own sake rather than for learning content. Data included student artifacts (notes on science trade books and interviews) and researcher artifacts (lesson plans, teaching charts, and field notes. Analysis included constant comparison of data and coding until saturation. Results showed that students learned content and strategies but upset teachers with noise during discussion, alleviated through structured procedures.

Validating Two Problem-Solving Instruments For Use With Sixth-Grade Students, Jonathan Bostic, Stephen J. Pape, Tim Jacobbe

School of Teaching and Learning Faculty Publications

No abstract provided.

Elementary Teachers’ Mathematical Content Knowledge, Efficacy, And Problem Solving Abilities In Alternative Certification, Brian R. Evans

NERA Conference Proceedings 2011

The purpose of this study was to understand teachers’ mathematical content knowledge, self-efficacy, problem solving abilities, and teacher beliefs in an elementary education mathematics methods course for special education teachers in the New York City Teaching Fellows and Teach for America alternative certification programs. Findings revealed a significant increase in mathematical knowledge and self-efficacy. Additionally, teachers were found to have high self-efficacy and strong problem solving abilities. Teachers generally found that helping students with disabilities learn mathematics was the biggest issue in their teaching, and that the use of technology and manipulatives were the most important topics in their learning.

A Comparison Of Two Alternative Pathway Programs In Secondary Mathematics Teacher Certification, Brian R. Evans

NERA Conference Proceedings 2011

The purpose of this study was to compare the mathematics content knowledge, attitudes toward mathematics, and concepts of self-efficacy held by teachers in two alternative pathways to mathematics teacher certification: New York City Teaching Fellows and Teach for America. Findings revealed that there were no differences between Teaching Fellows and TFA teachers in mathematics content knowledge, attitudes toward mathematics, and concepts of self-efficacy. However, learning and teaching journals revealed several differences between Teaching Fellows and TFA teachers.

Do Pax-Rn Scores Predict First Year Success In Nursing School For Minority Disadvantaged Students?, Gavrielle Levine, Carmelle Bellefleur

NERA Conference Proceedings 2011

The National League for Nursing developed the Pre-Examination for RN Programs (PAX-RN) to predict academic success for applicants at the completion of the first year of nursing programs. While the PAX-RN is normed on a stratified sample, the effectiveness of this test in predicting academic success for minority disadvantaged students is unclear. A cohort of 41 predominately minority students (56.1%) enrolled in an Associate Degree nursing program in an urban environment completed the PAX-RN as part of the admission process. As predicted, verbal and composite scores were significantly higher for students who passed the first semester nursing course …

Perspectives Of Suburban Public School Teachers On The Characteristics Of Students At-Risk For Dropping Out Of School, Michael Sollitto, Robert Gable

NERA Conference Proceedings 2011

This study focuses on a major problem facing today’s educators: high school dropouts. Numerous studies have been conducted to identify the reasons that students drop out of school and programs that may address the needs of students at-risk for dropping out of school. Literature in this area was reviewed to identify what can be learned from these studies.

Research questions addressed differences in teacher perspectives of the characteristics of elementary, middle, and high school struggling students. Differences in teachers’ perspectives based on tenure and type of teaching assignment were examined. A sequential, mixed methods approach was taken. The researchers began …

Gender Differences In Engineering Classrooms: Sugar And Spice And Everything Nice?, Jennifer Walter, Candice Stefanou, Jonathan Stolk, Michael Prince, Susan Lord, John Chen, Katharyn Nottis

NERA Conference Proceedings 2011

The purpose of this paper is to examine ways in which pedagogy and gender of instructor impact the development of self-regulated learning strategies as assessed by the Motivated Strategies for Learning Questionnaire (MSLQ) in male and female engineering students. One hundred seventy-six students from four universities participated in the study. Within-group analyses found significant differences with regard to pedagogy and instructors’ gender on the learning strategies and motivation subscales as operationalized by the MSLQ. Male and females students reported significant post-test differences with regard to the gender of instructor and the style of pedagogy. The results of this study showed …

Will The U.S. Poverty Achievement Gap Narrow By 2015? Probably Not, Stuart E. Smith

NERA Conference Proceedings 2011

The primary objective of the study was two-fold: First, to determine, for the period 2003-2009, if the U.S. poverty achievement gap has narrowed between students eligible for the free/reduced price school lunch program and students not eligible, using National Assessment of Educational Progress (NAEP) measures of reading and math. The second part of the primary objective was to make projections about the size of the poverty gap for years 2011, 2013, and 2015. A secondary objective was to determine for each of the 50 states, for the 2003-2009 period, whether the poverty achievement gap has narrowed. Thus, the secondary objective …

Exploring Language As A Source Of Dif In A Math Test For English Language Learners, Minji K. Lee, Jennifer Randall

NERA Conference Proceedings 2011

English language learners (ELs) have shown lower performance in mathematics than non-ELs although mathematics is an area that uses the least amount of language among the subjects that are mainly tested. If this differential performance is due to the bias in test items, then validity of using ELs’ test scores in comparison to non-ELs’ is compromised. For this reason, studies have investigated whether the differential performance can be attributed to language load in the tests. The results of these studies were not consistent. Some studies did find its effect, whereas others did not. Some of the difficulties encountered by researchers …

Eliciting Student Judgments Of Intrinsic Difficulty For Studying Student Misconceptions In Solving Basic Mathematics Items, Eric Magaram, Jean Phanor, Charles Secolsky, Preston Hasbrouck

NERA Conference Proceedings 2011

The misconceptions of developmental mathematics students in solving basic arithmetic problems are becoming a national crisis. If instructors better understood the conceptions that students have that lead to incorrect responses when solving arithmetic problems, instruction of the material presented to the students may improve. Four groups of five students were given five basic math questions for a total of 20 questions, and the only instructions the students were given was to solve the problems out loud and to please continue talking. Their answers were transcribed and the student responses were used to create solution strategies for each of the 20 …

Faculty Senate Meeting Minutes Oct 21, 2011, A-State Faculty Senate

Faculty Senate Minutes

No abstract provided.

Temperature Dependence Of Sio2 Electron-Induced Cathodoluminescence, Amberly Evans, Gregory Wilson, John R. Dennison

All Physics Faculty Presentations

No abstract provided.

Temperature Dependence Of Sio2 Electron-Induced Luminescence, Amberly Evans Jensen, Gregory Wilson, Jr Dennison

Presentations

No abstract provided.

Daily Eastern News: October 21, 2011, Eastern Illinois University

October

No abstract provided.

Overcoming The Negative Frequencies - Instantaneous Frequency And Amplitude Estimation Using Osculating Circle Method, Ming-Kuang Hsu, Jiun-Chyuan Sheu, Cesar Hsue

Journal of Marine Science and Technology–Taiwan

There are many methods able to extract the instantaneous frequencies from a time series for practical applications. Gabor's method is one of the most popular and simple methods. For wide band time series, Gabor's method may produce negative frequencies. The limitation of Gabor's method is that, in order to avoid resulting with negative frequencies, it can only be applied to time series with mono component and near zero mean. In this paper, a new method that does not generate negative frequencies, the Osculating Circle (OC) Method, is presented. The OC method is based on Gabor's method but with modified unwrapped …

Orbit Uncertainty Propagation Using Sparse Grid-Based Method, Yang Cheng

Probability & Statistics Seminar

Tracking resident space objects (RSOs) has gained much attention in recent years because of the hazard posed by inactive RSOs to active RSOs. One challenge for RSO tracking is orbit uncertainty propagation. Owing to the sparsity of the available tracking sensor data and the nonlinearity of the orbital dynamics, the uncertainty of the orbit of an RSO is highly nonGaussian after long-term propagation. The state-of-the-art methods for non-Gaussian uncertainty propagation include the Gaussian mixture method that approximates the non-Gaussian probability density function (pdf) by a mixture of Gaussian pdfs and the state transition tensor- and generalized Polynomial Chaos-based method that …

Regulating Systemic Risk: Towards An Analytical Framework, Iman Anabtawai, Steven L. Schwarcz

Documents

No abstract provided.

Fabrication Of Size-Tunable Metallic Nanoparticles Using Plasmid Dna As A Biomolecular Reactor, Jacopo Samson, Irene Piscopo, Alex Yampolski, Patrick Nahirney, Andrea Parpas, Amit Aggarwal, Raihan Saleh, Charles Michael Drain

Publications and Research

Plasmid DNA can be used as a template to yield gold, palladium, silver, and chromium nanoparticles of different sizes based on variations in incubation time at 70 °C with gold phosphine complexes, with the acetates of silver or palladium, or chromium acetylacetonate. The employment of mild synthetic conditions, minimal procedural steps, and aqueous solvents makes this method environmentally greener and ensures general feasibility. The use of plasmids exploits the capabilities of the biotechnology industry as a source of nanoreactor materials.

Chimes: October 21, 2011, Calvin College

Chimes

Volleyball sweeps Midwest Invitational by Josh Yonker

Spend summer stateside by Grace Ruiter

Fair evinces student research by Hayley Cox

Registeration mandated by Amanda Elliot

Ancient paint discovered by Allison Schepers

Televised debates popular by Nathan Slauer

Rough week for Michigan sports by Maxwell Harden

Publication Innovation: Sustaining Digital Repositories For Science, Oya Rieger, Yuan Li

Open Access Week

Open Access repositories reduce restrictions for people trying to obtain the latest research discoveries across the sciences. How are these resources sustainable solutions to problems in science communication? Come hear answers to the sustainability problem from a leading figure helping develop and sustain arXiv and Project Euclid, two innovative repositories that have changed the way scientists access the products of research in Physics, Mathematics, and other disciplines.

Dr. Oya Rieger, associate university librarian at Cornell University Library, will speak about her extensive experience working on digital repository projects, including applying publishing models and technology that better supports the communication needs …

Free And Open Source Software In Computing Education, Stephen Jacobs, Clif Kussmaul, Mihaela C. Sabin

Applied Engineering and Sciences Scholarship

Free and Open Source Software (FOSS) exemplifies the merit and successes of open content, understood broadly as creative work that explicitly allows sharing and further changes by anyone, whether an individual or organization. Although the benefits of improving computing education with open source practices are largely acknowledged, transforming teaching to create effective learning environments has many challenges. The panelists will bring different perspectives on teaching strategies and curricular content they have used in their classrooms. These perspectives will exemplify key issues with FOSS-based education and FOSS-based IT systems. The developer and user communities established around FOSS-based IT systems are of …

Gsu View, 2011-10-20, Office Of Public Affairs

GSU View

Newsletter published by Governors State University 2007-current.

Student And Advisor Guide To The Wright State Core

Undergraduate Curriculum and Academic Policy Committee Wright State University Quarter to Semester Transition

A guide for students detailing the Wright State Core transitioning from Quarters to Semesters as well as the process of transferring from other institutions.

Quantum Size Effect And The Two Types Of Interference Between Bulk And Boundary Scattering In Ultrathin Films, S. Chatterjee, A. E. Meyerovich

Physics Faculty Publications

We analyze interference between bulk and boundary scattering channels in ultrathin metal films with rough surfaces in quantum-size-effect conditions. We identify two different sources of such interference. The first, which we call the mixing interference, is associated with inversion of collision operator with surface and bulk scattering terms. This inversion always leads to mixing of bulk and surface terms, even if the scattering channels are formally independent, as long as the collision operator does not have a δ-type structure (the relaxation time approximation). The second source of interference, or what we called the intrinsic interference, is associated with …

Long-Term Predictive Value Interval With The Fuzzy Time Series, Ming-Tao Chou

Journal of Marine Science and Technology–Taiwan

This paper presents a new mathematical method to construct a fuzzy time series model of a system where the fuzzy support and interval values are used. This paper further presents an improved fuzzy time series model with a long-term predictive value interval and shows that the proposed definition can be used for long-term forecasting. The enrollment data of the University of Alabama (adopted by Song and Chissom, 1993) are used to demonstrate the proposed forecast model.

Undergraduate Curriculum And Academic Policy Committee Minutes, October 20, 2011

Undergraduate Curriculum and Academic Policy Committee Minutes

Minutes from the Wright State University Faculty Senate Undergraduate Curriculum and Academic Policy Committee meeting held on October 20, 2011.

Daily Eastern News: October 20, 2011, Eastern Illinois University

October

No abstract provided.