the alien polychaetes are widely distributed in the whole mediterranean sea as well as in theegyptian waters. the objective of this study is to highlight the distribution and abundance of the alienpolychaetes along the alexandria coast, their contribution to the total polychaete community and the changesthey caused in the community structure. through monthly sampling polychaetes were collected ...

A semi-static replication method is introduced for pricing discretely sampled path-dependent options. It depends upon buying and selling options at the reset times of the option but does not involve trading at intervening times. The method is model independent in that it only depends upon the existence of a pricing function for vanilla call options which depends purely on current time, time to ...

to describe the morphological and histological changes during the annual reproductive cycle of the gonads of cyprinion tenuiradius, a total of 341 specimens (102 female and 235 male specimens) were collected monthly from the rudbal river (in the qarah aghaj sub-basin, the persian gulf basin), firuzabad, fars province, southern iran. the randomly sampling was adequate to collect males and female...