Web based instruction is growing at an incredible rate. Teachers, instructors, trainers and several others are putting their instructional content online. The format, style and media types vary from instructor to instructor. In essence web based instruction is being done by an unknown number of people in an unknown number ways using different media types and platforms. In this paper, an instruc...

Web based instruction is growing at an incredible rate. Teachers, instructors, trainers and several others are putting their instructional content online. The format, style and media types vary from instructor to instructor. In essence web based instruction is being done by an unknown number of people in an unknown number of ways using different media types and platforms. In this paper, an inst...

To achieve the goal of scientific literacy, besides conveying science and technology concepts, cultivating students’ modeling ability has become important. However, in-service teachers face the difficulty that their teaching load increases while they are still bound by limited teaching hours. Teachers may know of modeling ability, life related content and hands-on activities which are all impor...

The process of developing effective science educators has been a long-standing objective of the broader education community. Numerous studies have recommended not only depth in a teacher's subject area but also a breadth of professional development grounded in constructivist principles, allowing for successful student-centered and inquiry-based instruction. Few programs, however, have addressed...

In this paper we solve the problem of static portfolio allocation based on historical Value at Risk (VaR) by using genetic algorithm (GA). VaR is a predominantly used measure of risk of extreme quantiles in modern finance. For estimation of historical static portfolio VaR, calculation of time series of portfolio returns is required. To avoid daily recalculations of proportion of capital investe...

The aim of this paper is to study the cross-sectional effects present in the market using a new framework based on graph theory. Within this framework, we represent the evolution of a dynamic portfolio, i.e. a portfolio whose weights vary over time, as a rank-based factorial model where the predictive ability of each cross-sectional factor is described by a variable. Practically, this modeling ...

abstract controversy has not been yet resolved among l2 researchers as how to enhance higher-order thinking skills (hotss) in efl contexts. responding to the growing need to foster thinking skills, many l2 educators have recently attempted to investigate the effect of diverse teaching strategies on hots. yet, few studies have focused on the infusion of gardner’s (1999) theory of multiple intell...

in this study, we focused on tehran stock exchange market analysis based on applying moving average rules. the tehran stock exchange in the middle east has evolved into an exciting and growing marketplace where individual and institutional investor trade securities of over 420 companies. in an attempt to examine the ability to earn excess return by exploiting moving average rules, the average a...

Advances in human-instructable computing are contributing to a new breed of computer systems that can be taught by natural instruction rather than requiring direct programming. The current approach in the MABLE “electronic student” emphasizes the interface that maps different modes of instruction to machine learning algorithms that can learn the concepts and task knowledge being taught. While t...