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
Mordechai Rotenberg world serves as a model for human behavior and interaction. The tzimtzum model promotes a unique community-centric approach which contrasts starkly with the language of Western psychology. In 2009, Rotenberg was awarded the Israel Prize for social work, in connection with his research in social welfare. Mordechai Rotenberg Mordechai Rotenberg (1932 - ) () is an Israeli professor of social work at the Hebrew University of Jerusalem. Mordechai Rotenberg was born in Breslau, Germany (today Wrocław, Poland). His father was from Warsaw, descended from Rabbi Yitzchak Meir Alter, the founder of the Hasidic sect. His father owned a publishing house