[This is the old program from WS 2007/08. The current program and contact information can be found here.]

05 October 2007, 16:00

Atsushi Tero (Hokkaido University, Sapporo, Japan)
Traffic-adaptive networking by a real amoebae of Physarum [Abstract]

Toshiyuki Nakagaki (Hokkaido University, Sapporo, Japan)
Amoebae anticipate periodic events [Abstract]

12 October 2007, 16:00

Takao Ohta (Department of Physics, Kyoto University, Japan)
Turing patterns in three dimensions

Abstract:
Reaction diffusion equations have been used for many years for modeling pattern formation far from equilibrium. In 1952 Turing showed that a motionless spatially periodic solution can be stable in a coupled reaction diffusion equation with two components if certain conditions are satisfied in the diffusion coefficients and the nonlinearity. In 1991, De Kepper and his coworkers, and soon later Ouyang and Swinney carried out experiments to detect Turing patterns. Theoretically, Turing patterns have been studied numerically and analytically in one and two dimensions where only stripe patterns, hexagonal patterns and labyrinthine patterns can be realized. We investigate three-dimensional Turing patterns in two-component reaction diffusion systems. The FitzHugh-Nagumo equations, the Brusselator and the Gray-Scott model are solved numerically in three dimensions. We emphasize that several bicontinuous structures of domains, which are intrinsic in three dimensions are obtained as stable motionless patterns. The relation with the microphase separated structures in block copolymers is also discussed.
H. Shoji, K. Yamada, D. Ueyama and T. Ohta, Phys. Rev. E75 046212 (2007)

02 November 2007, 16:00

Karsten Kruse (Theoretische Physik, Universität des Saarlandes)
Active behavior of the cytoskeleton [Abstract]

09 November 2007, 16:00 Haber-Villa

Peter Tass (Institut für Neurowissenschaften und Biophysik, Forschungszentrum Jülich)
Model based development of desynchronizing brain stimulation techniques [Abstract]

30 November 2007, 16:00

Pablo Kaluza (Fritz-Haber-Institut der MPG)
Evolutionary design of complex functional networks [Abstract]

14 December 2007, 16:00 Haber-Villa

Hans-Günther Döbereiner (Institut für Biophysik, Universität Bremen)
Dynamic Phase Transitions and Collective Modes in Cell Spreading [Abstract]

18 January 2008, 16:00

Hiroya Nakao (Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin)
Phase coherence in an ensemble of uncoupled nonlinear oscillators induced by correlated noise [Abstract]

08 February 2008, 16:00

Stefan Luther (Max-Planck-Institut für Dynamik und Selbstorganisation, Göttingen)
Noninvasive adaptive multisite pacing of the heart [Abstract]

22 February 2008, 16:00

Wolffram Schröer (Institut für Anorganische und Physikalische Chemie, Universität Bremen)
Criticality and corresponding states in ionic systems [Abstract]