4.5k citations · 36.9k across the 238 of their papers we have counts for
8 papers · 2 filters
Scaling of Cluster and Backbone Mass Between Two Lines in 3d Percolation
Luciano R. da Silva, Gerald Paul, Shlomo Havlin +2
We consider the cluster and backbone mass distributions between two lines of arbitrary orientations and lengths in porous media in three dimensions, and model the porous media by b…
Dynamics of Sleep-Wake Transitions During Sleep
Chung-Chuan Lo, Luis A. Nunes Amaral, Shlomo Havlin +4
We study the dynamics of the awakening during the night for healthy subjects and find that the wake and the sleep periods exhibit completely different behavior: the durations of wa…
Portfolio Optimization and the Random Magnet Problem
B. Rosenow, V. Plerou, P. Gopikrishnan +1
Diversification of an investment into independently fluctuating assets reduces its risk. In reality, movement of assets are are mutually correlated and therefore knowledge of cross…
Symmetry Breaking in Stock Demand
Vasiliki Plerou, Parameswaran Gopikrishnan, H. Eugene Stanley
Scale-free distributions and correlation functions found in financial data are reminiscent of the scale invariance of physical observables in the vicinity of a critical point. Here…
Behavioral-Independent Features of Complex Heartbeat Dynamics
Luis A. Nunes Amaral, Plamen Ch. Ivanov, Naoko Aoyagi +5
We test whether the complexity of cardiac interbeat interval time series is simply a consequence of the wide range of scales characterizing human behavior, especially physical acti…
The Web of Human Sexual Contacts
Fredrik Liljeros, Christofer R. Edling, Luis A. Nunes Amaral +2
Many ``real-world'' networks are clearly defined while most ``social'' networks are to some extent subjective. Indeed, the accuracy of empirically-determined social networks is a q…