ABSTRACT
Any general principles governing the origins of regular patterns in space and rhythmic oscillations in time seem very likely to find application. directly or indirectly, at many levels of biological science-beginning with the intracellular. supramolecular level. A basic problem in the physical sciences which is increasingly attracting mathematicians and engineering scientists is the explanation of how specific dynamic patterns and rhythms can arise in spatially uniform. steady-state situations. Of course. macroscopic systems always suffer some sort of low-level noise. but how can chaotic, weak disturbances have no effect in some circumstances. yet trigger development of strong, regular pattern and rhythm in others?
