TY JOUR TI Problems of ensuring the economic security of high-tech sectors under sanctions pressure KW economic security KW sanctions KW import substitution KW technological sovereignty KW high-tech industries KW industrial policy JO Economic policy and national security AU Gioev, G.V. AU Sklyarov, I.Y. PY 2026 IS 0 PB SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION