Radioactive iodide, incubated with erythlowing hemolysis of erythrocytes double rocytes in the presence of lactoperoxidase labeled with 1251 and 51Cr, radioactivity and hydrogen peroxide, is covalently from both these isotopes appeared mainly bound to membrane proteins. Using this in liver, lung, kidney, spleen, and urine. technique, rabbit erythrocytes were IaEnzymatic iodination provides a no...

Daisyworld is a model dynamical system in which very simple mechanisms interact to produce complex behaviour. It was devised to show how regulation can arise without natural selection. Here we investigate the model in greater detail. We analyse the possible steady states and study the response of the system under different conditions, we consider the implications of the hysteresis which is foun...

Georg Cantor (Cantor, 1941; Dauben, 1990) is well-known to mathematicians as the inventor/discoverer of the arithmetic and ordering of mathematical infinity. Cantor discovered the theory of transfinite numbers, and an infinite hierarchy of ever-larger infinities. To the uninitiated this Cantorian notion of larger and larger infinities must seem prolix and astonishing, given that it is difficult...