we aimed to compare the therapeutic effect of avonex (av), betaferon (be) & rebif (re) on the expanded disability status scale (edss) in multiple sclerosis (ms). ninety patients referring to farshchian hospital were entered in this study. the patients were divided into three equal groups: group 1 received av, group 2 received re and group 3 received be, and after 24 months, comparison was done ...

We consider the design of strategies for market making in an exchange. A market maker generally seeks to profit from the difference between the buy and sell price of an asset, yet the market maker also takes exposure risk in the event of large price movements. Profit guarantees for market making strategies have typically required certain stochastic assumptions on the price fluctuations of the a...

The purpose of our study is to test the robustness of innovation theory. Today, many companies are ‘going green’ to respond to the demand from government, consumers, and general public and also to improve competitiveness. To investigate if information technology (IT) innovators achieve competitive advantage even after going green, we first selected IT innovators using the most recent Informatio...

The proper selection of a wheelchair requires making several critical decisions, not the least of which is what type of wheelchair is appropriate. The International Organization for Standards (ISO) continues to develop and refine wheelchair standards. Standards allow the objective comparison of products from various sources, permitting consumers or clinicians to assess wheelchairs with which th...

This paper studies the average complexity on the number of comparisons for sorting algorithms. Its information-theoretic lower bound is n lg n− 1.4427n+O(log n). For many efficient algorithms, the first n lg n term is easy to achieve and our focus is on the (negative) constant factor of the linear term. The current best value is −1.3999 for the MergeInsertion sort. Our new value is −1.4106, nar...

background and purpose: emergency physicians play an important role in the immediate diagnosis of bioterrorism activities. the present study was conducted with the purpose of comparing the effectiveness of virtual learning and classroom learning in approach to bioterrorism and chemical terrorism for emergency physician s. methods: this was a semi-empirical study, which was conducted via testing...

purpose: this study examined the performance management component of librarians and library staff using internal valuation models at the central library of astane quds razavi. methodology: this study, based on its nature and the data collection methods, is a descriptive research. the population studied here included public librarians and library patrons at the control library astane quds razavi...