Size distributions in some ecosystems follow a power (Zipf-)law behavior spanning up to two ten decades. A model for the origins of this scaling behavior is presented ...

We show that a wide variety of nonlinear cellular automata (CAs) can be decomposed into a quasidirect product of linear ones. These CAs can be predicted by parallel circuits of depth 0(log(2)t) using ...

West, G. B.,Brown, J. H.,Enquist, B. J.

Anselme CormierLecturer in ancient history at the Université catholique de l'Ouest in Nantes and research associate at the Centre Jean Bérard in Naples ...

One of the most important ways that humans have impacted biodiversity in the long run is through reducing the abundance of megafauna (animals over ca. 45 kg/100 lbs). It is well known that toward the ...

In a recent study in Physical Review Letters, SFI Complexity Postdoctoral Fellow Aanjaneya Kumar and colleagues show that the ...

Fuentes, M. A.,Wio, H. S.

Tessier, T. E.,Caves, C. M.,Deutsch, I. H.,Eastin, B.,Bacon, D. We present a model, motivated by the criterion of reality put forward by Einstein, Podolsky, and Rosen and supplemented by classical ...

Exploring the difference between "stable" and "robust" touches on essentially every aspect of what we instinctively find interesting about robustness in natural, engineering, and social systems. It is ...

Macroeconomists have long emphasized the importance of expectations in determining macroeconomic outcomes, and an enormous theoretical literature has developed examining many models of expectations ...

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Cascading behaviors are ubiquitous, from power-grid failures (1) to “flash crashes” in financial markets (2, 3) to the spread of political movements such as the “Arab Spring” (4). The causes of these ...