Circadian clock =============== This model is based on the paper `"Chaos and birhythmicity in a model of circadian oscillations of the PER and TIM proteins in Drosophila" `_ by Leloup and Goldbeter which has been made into a spatial reaction diffusion model. It defines over 30 reactions between 10 species in a single compartment without membrane effects. Due to the complexity of the mathematical description, it is not given in full here. Example Snapshot """"""""""""""""" .. figure:: img/circadianclock.png :alt: screenshot of the final step of the Circardian-Clock example model The last timestep of the circadian clock model in a 2D domain.