TY JOUR TI Professional marginalism preventing in the process of physical training of the cadets of departmental universities KW professional identity KW professional marginalism KW physical training KW pedagogical conditions JO Vestnik of the St. Petersburg University of the Ministry of Internal Affairs of Russia AU Mescheryakova, E.I. AU Sabirova, I.A. PY 2021 IS 2021 PB SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION