[This is the old program from WS 2006/07. The current program and contact information can be found here.]

16 October 2006, 17:00

Hsuan-Yi Chen (Department of Physics and Graduate School of Biophysics, National Central University, Taiwan)
Models of nonequilibrium domains in biomembranes [Abstract] 

03 November 2006, 16:00

Ichiro Tsuda (Research Institute for Electronic Science, Hokkaido University, Sapporo, Japan)
Modeling episodic brain memory [Abstract] 

17 November 2006, 16:00

Marc-Thorsten Hütt (School of Engineering and Science, International University Bremen IUB)
Exploring biological networks with dynamic probes [Abstract] 

24 November 2006, 16:00

Yuka Tabe (Department of Applied Physics, Waseda University, Tokyo, Japan)
Dissipative structures in molecular thin films [Abstract] 

01 December 2006, 16:00, Habervilla, Faradayweg 8

Carsten Beta (Department of Fluid Dynamics, Pattern Formation and Nanobiocomplexity, MPI for Dynamics and Self-Organization, Göttingen)
Directional sensing - an experimental approach based on microfluidics [Abstract] 

19 January 2007, 16:00

James Sneyd (Dept. of Mathematics, University of Auckland, New Zealand)
Calcium oscillations: Using mathematics to do physiology [Abstract] 

02 February 2007, 16:00

Vadim N. Biktashev (Dept. of Mathematical Sciences, University of Liverpool, UK)
Asymptotic approaches to cardiac excitation models [Abstract] 

16 February 2007, 16:00

Chaiya Luengviriya (Institut für Experimentelle Physik, Universität Magdeburg)
Scroll wave instabilities in a chemical excitable medium  

Abstract:
Experiments on the dynamics of scroll waves with initially straight filaments have been carried out in an optical tomography setup using the Belousov-Zhabotinsky reaction. Isoconcentration surfaces and scroll wave filaments were reconstructed. Using a meandering recipe, two instabilities have been observed: the three dimensional meandering instability and the negative line tension instability. The first leads to a flat, zig-zag shaped filament of almost constant length. The second occurred in the long time limit, i.e., at low excitability. Here the filament presents a substantial expansion, and the scroll wave assumes a snaking geometry. Numerical simulations that take into account the decrease in excitability of the reaction medium due to aging corroborate the experimental findings and their interpretation.