Polarization of PAR proteins by advective triggering of a pattern-forming system. N.W. Goehring, P. Khuc Trong, J.S. Bois, D. Chowdhury, E.M. Nicola, A.A. Hyman, and S.W. Grill. Science. 334(6059):1137-1141 (2011). Web
See Going with the flow: an elegant model for symmetry breaking and Cell polarization: Mechanical switch for a chemical reaction.