although iran has a deep history about 10000 years, its role in development of science in general and medicine in particular is yet to be known. there are several factors responsible for this, namely the destruction of a good number of ancient persian manuscripts and books. furthermore, lack of interest found among contemporary researchers seems to add to this anonymity. one way to compensate f...

Results from Chandra observations of the two nearest, powerful radio galaxies are summarised.

since the beginning of the nineteenth century onward , arabic drama has preserved a close relation to the heritage. one of the most famous dramas s using the classical elements is “al-malik howa-l-malik” ( the king is the king) written by the syrian dramatist “sa’dallah wannous”. in composing this drama ,he has been inspired by one of one thousand and one nights fables namely “an-naim wa-l- yag...

On a 2m 2n chessboard, the maximum number of nonattacking kings that can be placed is mn, since each 22 cell can have at most one king. Let f m (n) denote the number of ways that mn nonattacking kings can be placed on a 2m 2n chessboard. The purpose of this paper is to prove the following result. such that f m (n) = (c m n + d m)(m + 1) n + O(n m) (n ! 1): For every such placement of kings, the...

futuwwa is an arabic word meaning ‘javanmard’ in persian and ‘fata’ is literally a young man. from its meaning we envisage him as a person who has reached to the apogee of him life or the perfection in his life. according to the available evidences and in comparison to mihr creed, it is considered that chivalry was prevalent in the pre- islamic iran. drinking a cup of saltwater is similar to mi...