Using computer simulations, we establish that the structure of a supercooled binary atomic liquid mixture consists common neighbour structures similar to those found in equilibrium crystal phase, Laves structure. Despite large accumulation crystal-like structure, represents true metastable and can borrow without being destabilized. We consider whether this feature might be origin all instances ...

The 20,000–30,000 proteins encoded by our genomes all had to come from somewhere originally, and Nature is a great recycler. Although some sections of proteins have arisen recently by co-option of previously noncoding sequence, looking at most protein structures gives you a distinct feeling of déjà vu. Time and again handy functional modules appear in novel guises, doing sort of the same job, b...