Nazariyai radikalho yake az nazariyahoi asosii khimiyai nimai yakumi asri 19. Asosi onro tasavvuroti A. L. Lavuaze oid ba ahamiyati muhimi oksigen dar khimiya va dukhelagii tarkibi payvasthoi khimiyavi tashkil medihad. Lavuaze (1789) az istilohi radikal (az lot. radix — resha, asos, ki soli 1785 khimiki fransavi A. B. Giton …

Nazariyai sathho yak fasli geometriyai differensiali ast, ki khosiyati sathhoro meomuzad. Yake az vazifahoi asosii Nazariyai sathho chen namuda­ni buzurgihoi gunogun dar sathho meboshad. Majmui dalelhoe, ki dar natijai in chenkunino ba dast meoyad, geometriyai dokhilii sathhoro tashkil medihad. Mafhumhoi darozii khat, kunji bayni du samt, masohati soha, inchunin khathoi …

Nazariyai sokhti khimiyavi, nazariyaest dar borai sokhti payvast- hoi organiki, tartibi joygirshavii atomho va bandhoi khimiyavi dar mo­lekula, tasiri (mutaqobili atomho, inchunin aloqai sokht va khosiyati fi- zikiyu khimiyavii moddaho. Prinsiphoi asosii Nazariyai sokhti khimiyaviro avvalin marotiba (1861) A. M. But­lerov bayon kardaast. Ba kashf shudani Nazariyai sokhti khimiya mafhumhoi …

Nazariyai stelyari, talimot dar borai sokht va aloqai tarafayni navhoi stela (qismi markazii poya va reshai rastani) dar rastanihoi darajai oli. In talimotro soli 1886 botanikhoi fransavi F. Van Tigem va A. Dulio kashf kardaand. Tasnifi avvalini stelaho niz ba onho taalluq dorad. Dar taraqqiyoti minbadai Nazariyai stelyari khizmati olimoni …

Nazarov Ivan Nikolaevich (12.6. 1906 d. Koshelyovo, khozira p-ni Kir- jachi vil. Vladimir — 30. 7. 1957, Moskva), khimik-organiki sovety, akad. AF ITTIHODI ShURAVI (1953; azo-korr. 1946). Azoi KPSS az s. 1944. Soli 1931 Akademiyai khojagii qishloqi Moskva ba nomi K. A. Timiryazevro khatm kar­daast. Shogirdi A. B. Favorskiy. Dar …