(Intrinsically?) Universal Asynchronous CA

We consider asynchronous one-dimensional cellular automa- ta (CA). It is shown that there is one with von Neumann neighborhood of radius 1 which can simulate each asynchronous one-dimensional cellular automaton. An analogous construction is described for α-asynchronous CA (where each cell independently enters a new state with probability α. We also point out some generalizations for other updating schemes.