Nervous system function requires intracellular transport of channels, receptors, mRNAs, and other cargo throughout complex neuronal morphologies. Local signals such as synaptic input can regulate cargo trafficking, motivating the leading conceptual model of neuron-wide transport, sometimes called the 'sushi-belt model' (Doyle and Kiebler, 2011). Current theories and experiments are based on thi...

The ChessBrain project was created to investigate the feasibility of massively distributed, inhomogeneous, speed-critical computation on the Internet. The game of chess lends itself extremely well to such an experiment by virtue of the innately parallel nature of game tree analysis. We believe that ChessBrain is the first project of its kind to address and solve many of the challenges posed by ...

Recently Harris (1999), using probabilistic arguments alone, has given new proofs of the (known) existence, asymptotics and uniqueness of travelling wave solutions to the K-P-P equation. This paper is a sequel to Kyprianou (2000b) which provides alternative probabilistic arguments for supercritical wave speeds. We complete our probabilis-tic analysis here for the more diicult case of critical w...