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TZID:Europe/Paris
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BEGIN:VEVENT
UID:1-88@lptms.universite-paris-saclay.fr
DTSTART:20121206T143000Z
DTEND:20121206T143000Z
DTSTAMP:20121127T080236Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-phystat
 -sud-jean-francois-joanny/
SUMMARY:Séminaire de la fédération PHYSTAT-SUD : Jean-François Joanny -
  LPTMS\, salle 201\, 2ème étage\, Bât 100\, Campus d'Orsay - 6 Déc 12 
 14:30
DESCRIPTION:Growth and instabilities of healthy and cancerous tissues\nJean
 -François Joanny\, Institut Curie\, Paris\nDuring development or during t
 umor growth\, cells organize collectively by cell division and apoptosis i
 n a tissue. The aim of our work is to build up theoretical tools based on 
 non-equilibrium statistical mechanics and continuum mechanics to describe 
 the mechanical properties of tissues and to apply them to various biologic
 ally relevant situations. We first show that because of the coupling betw
 een cell division and the local stress\, a tissue can be considered as a v
 isco-elastic liquid at time scales larger than the cell division time.  W
 e then show recent model experiments on cell aggregates showing the effect
  of mechanical stress on tissue growth. Finally\, we use the hydrodynamic
  description to discuss the steady state structure of villis which are the
  protrusions of the surface of the intestine. We describe the formation of
  villis as a buckling instability of a polar cell monolayer. Similar insta
 bilities occur as well for tube-like cellular structures such as arteries.
LOCATION:LPTMS\, salle 201\, 2ème étage\, Bât 100\, Campus d'Orsay\, 15 
 Rue Georges Clemenceau\, Orsay\, 91405\, France
GEO:48.698185;2.181768
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=15 Rue Georges Clemenceau\,
  Orsay\, 91405\, France;X-APPLE-RADIUS=100;X-TITLE=LPTMS\, salle 201\, 2è
 me étage\, Bât 100\, Campus d'Orsay:geo:48.698185,2.181768
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