?? ?????? ?????????????? ??? ?????? ?????? ????? ????? ?????? ??? ?????????? ??????????? ?????????, ??? ?????? ??? ????? ???????? ??? ?????????, ???, ?????????, ???"? ? (?????? 1). ????? ?????? ??? ?? ????????? ?????? ???? ?? ?????????????????? ??? ??????????????? ????? ???? ???????????????? ????????? ?????. ?? ??? ?? ????? ??????????? ?????, ??? ???????? ??? ????? ?????-?????? ??? ?? ?????????? ???????. ????? ???????? ??? ??????????, ??? ?? ?????????? ????? ???? β - ???????? ???????????, ????? ??? ?????????? (???) ??? ??????? (???). ?????????? ??????????? ????????? ??? ?? ??????????? ????????? ??? ?? ??????????? ????? ??? ?????? 35 ??, ?????? ??? ??????, ????????????? ??? ??????? ??? ??????????? ????????, ????? ??????????? ??? 70% ?? 80% ???????? ???????. ????? ??????????????? ????? ??? ?? ??? ??? ????????? ??? ??????, ??? ???-???????? ????? ????? ??? ????????? ????? ?????, ???? ??????? ???????? ??? ?? ??????????, ??? ???? ????????? ????? ?????? ????????? ?????. ???? ????????? ????? ????? ???????? ???? ???????????? ?????, ???????????? ????? ??? ????????????????? ????????? ?????, ????? ?????? ?? ?????? ????-???????????? ????????. ?????? ??????? ? ??????, ?????????? ??????????? ?????????? ????? ???? ??????????? ??? ??? ?????? ?????? ???? ????? ???????????????? ?????????: ????, ????, ?????? ??? ???. ?????? ???, ???? ?????????? ??????????? ?????????? ????? ?? ?????? ?????????, ???? ??????? ?????????? ??????????? ?????????? ????? ?? ????? ?????????.

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