Olga Miroshnichenko, University of Tyumen (IMAGE) University of Tyumen Caption The presentation by Olga Miroshnichenko. Credit Sourse: Ural State University of Economics, Ekaterinburg Usage Restrictions Sourse: Ural State University of Economics, Ekaterinburg License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.