EXCITING AND DANGEROUS DAYS

Dangerous days ahead: a call to arms.

Spectra of some self - exciting and mutually exciting point processes

In recent years methods of data analysis for point processes have received some attention, for example, by Cox & Lewis (1966) and Lewis (1964). In particular Bartlett (1963a, b) has introduced methods of analysis based on the point spectrum. Theoretical models are relatively sparse. In this paper the theoretical properties of a class of processes with particular reference to the point spectrum ...

Exciting rogue waves

Rogue waves [1]—extreme ocean waves with heights up to thirty meters—have been common elements in stories from people working at sea, as well as in popular fiction. It is not hard to imagine why: being on a small boat in a stormy sea swell and suddenly encountering a wave maybe three times as high as the surrounding waves is a terrifying experience (Fig. 1). However, up to a few decades ago, oc...

Editorial: Exciting Dendritic Spines

The ability of a synapse to alter its strength based on use (synaptic plasticity) reigns as the basis of most cellular models of learning and memory [1]. However, if synaptic plasticity is king, then the dendritic spine is its kingdom. The dendritic spine, which houses the majority of excitatory synapses in the mammalian central nervous system, also undergoes dynamic changes to its shape (struc...

Exciting hard spheres.

We investigate the collision cascade that is generated by a single moving particle in a static and homogeneous hard-sphere gas. We argue that the number of moving particles at time t grows as t;{xi} and the number collisions up to time t grows as t;{eta} , with xi=2d(d+2) , eta=2(d+1)(d+2) , and d the spatial dimension. These growth laws are the same as those from a hydrodynamic theory for the ...