Jan 2004 -	Assistant Professor, Department of Physics and Astronomy, Georgia State University, Atlanta
May 2001 - Dec 2003	Research Associate, Biology Department, Emory University, Atlanta, GA. Supervisor: Professor R.L. Calabrese.
Apr 1998 - May 2001	Postdoctoral Fellow, Biology Department, Emory University, Atlanta, GA. Supervisor: Professor R.L. Calabrese.
Jun, 1997 - Apr 1998	Researcher at the Institute of Mathematical Problems of Biology, Russian Academy of Science, Pushchino, Russian Federation.
Jan, 1994 - Jun, 1997	Junior researcher at the Institute of Mathematical Problems of Biology, Russian Academy of Science, Pushchino, Russian Federation.
Jan, 1993 - Dec, 1993	Researcher (Mitarbeiter Angestellter) at Faculty of Biological Cybernetics, Department of Biology at University of Bielefeld, Germany.
May, 1992 - Jan, 1993	Junior researcher at the Institute of Mathematical Problems of Biology, Russian Academy of Science, Pushchino.