During December 11-12, all participants received Zoom link for the symposium. If you have registered and paid reg fee, but have not received the link, please turn to Ms Darina Prososhina techvac@onlinereg.ru

December 11-12, all participants presenting orals and posters have received invitations to test on Zoom connection and their presentations at selected times during December 14 and December 15. If you have not received such letter, or given time does not suit you,for in case of any other questions concerning presentations during Symposium, please contact techvac@onlinereg.ru.

Time for oral and poster presentations is given in the final version of the program updated December 13, 2021. Time includes 5 min for answering questions. The timeline will be punctually observed. Organizers kindly ask all presenting authors to adhere and in advance thank all participants for their cooperation in keeping up the program.

Poster presentations can be given in the form of 5 min Power Point presentations (5-7 slides) plus 1 min reserved for answering questions.