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SUMMARY:The rheology of cellular systems - Dr Alexandre Kabla\, Department
  of Engineering\, University of Cambridge
DTSTART:20071123T141500Z
DTEND:20071123T151500Z
UID:TALK8008@talks.cam.ac.uk
CONTACT:Jurij Kotar
DESCRIPTION:This talk will address various aspects of the mechanics of dis
 ordered\ncellular systems. In a first part\, I will focus on a simple pass
 ive\nmaterial: liquid foam. Its quasistatic rheology will be discussed\, b
 ased on\nnumerical and experimental results. In particular\, the appearanc
 e of\nheterogeneous flow profiles in simple shear geometries as well as th
 e role\nof long range elastic fluctuations will be described. In a second 
 part\, I\nwill present an ongoing work on quantifying embryo morphogenesis
 . We\nintroduce a kinematic description which captures the range of behavi
 ours\nobserved in reshaping embryos. It provides a comprehensive framework
  for\nmeasuring and exploring the patterns and rates of morphogenesis at a
 n\nintermediate or mesoscopic scale of local domains of ~20 cells where ke
 y\nmorphogenetic behaviours such as convergence and extension become non\n
 ambiguously measurable.
LOCATION:IRC in Superconductivity Seminar Room\, Cavendish Laboratory
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