Institution: | Complex Systems Research Group, Department of Physics, (FEN) Universitat Politecnica de Catalunya. Campus Nord, Modul B5 08034 Barcelona, Spain;;Departament de Genètica, Facultat de Biologia, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain;and;Department of Cell Biology and Anatomy, Basic Science Building, New York Medical College, Valhalla, NY 10595, USA |