When polished aluminum surfaces are dipped in an electrochemical cell under certain conditions, the surface is coated with a well-ordered array of porous pillars of alumina (aluminum oxide). These ...

When polished aluminum surfaces are dipped in an electrochemical cell under certain conditions, the surface is coated with a well-ordered array of porous pillars of alumina (aluminum oxide). These ...

Hillier, J., Congrès International de Microscopie Electronique de Paris, 1949. Sjöstrand, F. S., and Rhodin, J., Exp. Cell. Research (in the press). Elfvin, L. G ...

In an infected person, a whole population of bacterial cells can gain resistance very efficiently because once one cell has a resistance gene, it can share that gene with its neighbors.