Konstantin Nikolaev Konstantin Nikolaev Konstantin Nikolaev () is a billionaire Russian businessman who is a co-owner of and , the largest private rail operator in Russia, CIS, and the Baltic states. He is a major investor in American Ethane and serves on its board. Late July 2018, his net worth was estimated at $1.2 billion. He allegedly is a financial supporter of Maria Butina. Through Igor Levitin, Alexey Mordashov, Arkady Rotenberg, Gennady Timchenko, and Alexander Voloshin, Konstantin Nikolaev is a partner and close associate of numerous persons in Vladimir Putin's inner circle. In 1996, Nikolaev, Nikita Mishin, Andrei Filatov, and Alexey Mordashov
Arkady Aronov the Weizmann Institute of Science. In the 1990s, he visited University of Karlsruhe for extended periods of time, and he also became an Associate Member of the scientific staff of the International Centre for Theoretical Physics, Trieste. Arkady Aronov died in November 1994 in Rehovot as a result of a heart attack. During his career, Arkady Aronov supervised a number of PhD theses including these of Evgeny Ivchenko, Boris Spivak, Boris Altshuler, Alexey Ioselevich, Aleksander Zyuzin, and Alexander Mirlin. The fields in which Arkady Aronov contributed the most are In 1975, together with late Gennady Bir and with Grigory Pikus,