[Colloquium] TODAY! Seminar Announcement: The Challenge of Multiple Scales in the Biological Sciences:Applications in Cerebro-Vascular Perfusion

[Donna Brooms]

> 
> Subject: TODAY! Seminar Announcement: The Challenge of Multiple Scales in the Biological Sciences:Applications in Cerebro-Vascular Perfusion
> 
> Computation Institute Presentation
> 
> Speaker: Tim David, University of Canterbury, Director BlueFern HPC Unit
> Host: Ian Foster
> 
> Date: February 19, 2010
> Time: 11:00 AM - 12:00 PM
> Location: The University of Chicago, Searle 240a, 5735 S. Ellis Avenue, Argonne National Lab, TCS/Room 5C2 (5172)
> 
> The Challenge of Multiple Scales in the Biological Sciences:Applications in Cerebro-vascular Perfusion
> 
> Abstract:The talk will provide a short background to blood perfusion in the
> cerebro-vasculature and the phenomenon of autoregulation. A mathematical
> model will be described which simulates the variation in radii of the
> small cerebral arterioles through a metabolic model. We will also show
> the generation of binary trees (in 3D) which can dynamically alter their
> peripheral resistance. Finally we will present a model of linking the
> binary trees to patient specific 3D fluid models of blood flow in the
> major cerebral vessels as a way of providing dynamic boundary
> conditions. This will be emphasised through the use of system level
> acceleration, that is the use of two different computer architectures
> (in this case a IBM p575 SMP and a 4096 processor Blue Gene/L) to solve
> a single problem. 
> 

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