??????? ????? ????? ???????? ??????? (FPFD)� ???? ????????? ??????????� ???????? ??? ?????????? ??????? ???????? ???? ??? ?????? ?????� ??? 21 ?????? .

???� ???? ??????? �????? ?????? ?? ????? ????????? ?? ?? ??� ?? , ???????� , ??????� , ??? . ?? ?????? ????? ?????? ?? ??????? ?????? ???? ???? ??????? . ??? ????? ??????? ??? ???? ??????? ??????? ??????? ?? ????????? ???????? ?? ??????? ?????????? ??????? ???? ??????? ??? ?? ??????? ?????? ??????? ????????? ??????? ??????? ????? ??? ???? ????? ?? ????????? ?? ??? ????????.. ???????? ???� ??????? ??? ??????? ?? ??????? ??? ??????? ?????????? ??????? . ???? ?????? ??????? ????????? ????? ????????? ????? FPFD �???? ??? ??? ????? ??? ????? ?????? ????? ?? ??????? ??? ??????????� . ????? ?? ??????? ????? ???? ??????? ?????? .

????? �????? ??? ?????? ?? ???? ???????� ???????? ??? ????? ????? ???????? �??????? ?????? ?????????? �(NDI) ??????? ??????? ??????? ??? ??????????