Theoretical and observed travel times for New Zealand deep earthquakes

Isolated deep earthquakes beneath the North Island of New Zealand

Modeling and Inferential Thoughts for Consecutive Gap Times Observed with Death and Censoring

In the perspective of biomedical applications, consider a re- current event situation with a relatively low degree of recurrence. In this setting, the focus is placed on successive inter-event gap times which are observed in the presence of both a terminal event like death and inde- pendent censoring. The terminal event is potentially related to recurrent events while the censoring process is a...

A Random Walk with Exponential Travel Times

Consider the random walk among N places with N(N - 1)/2 transports. We attach an exponential random variable Xij to each transport between places Pi and Pj and take these random variables mutually independent. If transports are possible or impossible independently with probability p and 1-p, respectively, then we give a lower bound for the distribution function of the smallest path at point log...

Determining the Relation between Fire Engine Travel Times and Travel Distances in New York City

A simple physical model of the way fire engines travel leads to the hypothesis that T, the average fire engine travel time, depends on D, the distance travelled according to T(D) = 2(D/a)'12 if D ? d and T(D)=v,/a+D/v, if D>d. The parameter a can be interpreted as an acceleration and v, as a cruising velocity. A field experiment was run, and the above model validated and the parameters estimate...

Complex Times for Earthquakes, Stocks, and the Brain's Activity

A new study by He et al. in this issue of Neuron shows that large-scale arrhythmic (1/f) brain activity contains nested temporal structure in the form of crossfrequency coupling. This suggests temporal organization in neural mass activity beyond oscillations and draws attention to ubiquitous but often ignored arrhythmic patterns in neural activity.