TY JOUR TI CHILDHOOD STOLEN BY THE WAR KW children KW blockade KW hunger KW cold KW bombings KW work KW school KW bread JO Psychological and pedagogical problems of human and social security AU Sytova, E.D. AU Trukhina, I.N. PY 2026 IS 2026 PB Saint-Petersburg University of State Fire Service of Emercom of Russia