TY JOUR TI Prevention of school ostracism within the system of psychological and pedagogical support for students KW school ostracism KW harassment KW mobbing KW bullying KW cyberbullying KW psychological abuse KW youth socialisation KW Generation Z / centennials KW psycho-social service KW prevention of deviant behavior JO Russian Journal of Deviant Behavior AU Teslenko, A.N. PY 2025 IS 5 PB SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION