THE customary theory for the nucleation of ice on a crystalline substrate ... No alternative theory has yet been proposed to describe the molecular process by which ice deposits on a substrate.
Spir proteins nucleate actin polymerization by assembling a linear actin oligomer along a cluster of four actin-binding WH2 domains, and this process ... to understand the nucleation mechanism ...
where the researchers employed high-speed imaging and innovative methodologies to observe how rupture nucleation begins. Their findings reveal that the process initiates as small, slow-moving two ...