00588naa#a2200157#i#450# EN\\bibl\114187 20260204161856.3 3034-4689 20260131b2026####ek#y0engy0150####ca RU CHEMISTRY - XXI CENTURY. PROBLEMS AND ACHIEVEMENTS IN THE DEVELOPMENT OF CHEMISTRY AS A UNITARY FUNDAMENTAL SCIENCE PART 1. CHARACTERISATION OF THE PRESENT STAGE OF CHEMISTRY DEVELOPMENT Journal article Kazan Kazan National Research Technological University 2026 18 с. Journal article local vestniktu.ru