Ab? Sahl W?jan (B?zhan) ibn Rustam al-K?h? the 10th century mathematician and astronomer was from Tabarist?n (present M?zandar?n) province of Iran. Apart from his rich legacy kept in several manuscripts and studied, edited and translated widely, we know that some of his works have been lost. In this article, K?h?’s lost mathematical works are traced through references and quotations in the work...

abstract: the present study is about prophet ishmael, some parts of his life; his personality in the quran and the bible; and the comparison of the content of these two religious books. compilation of the study has been done with a new perspective and new presentation approach. since prophets have been human beings’ role model and their life has been a perfect example for humanity in all ages,...

the aim of this study is to examine the difference between the introverts and extroverts in preferred advice-giving style. furthermore, it explores the difference between l1 (persian) and l2 (english) regarding the giving of advice for the extroverts and introverts separately. it investigates whether an extrovert or introvert gives advice in the same manner in his l1 (persian) and l2 (english) ...

This paper has intended to discover and show some educational and nearly ethical problems in Jahiz` plentiful works. The paper, as a fundamental study, has surveyed the problem in an analytico-descriptive method and used his works directly. As is understood by the paper, Jahiz` educational and ethical views, deserving special attention, have been recorded in different places of his plentiful wo...