Researchers have discovered a mechanism by which helical biomineral structures can be synthesized to spiral clockwise or counterclockwise using only either the left-handed or right-handed version of a ...

In a “normal” electrocardiogram (ECG), the transition of the QRS axis in the precordial leads occurs between leads V 3 and V 4 (i.e., there is a dominant S in V 3 and a dominant R in V 4).

Whether a bacterium’s tail spins clockwise or counterclockwise was previously thought to depend on a ‘domino effect’ among proteins inside the tail. However, new research proposes that a tug-of-war is ...