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Accueil du site > Seminars > Séminaires théorie > Theory Club Thursday May 16 at 12:30pm in room 454A. Jacques Prost: "Tissues as Active Systems".

Theory Club Thursday May 16 at 12:30pm in room 454A. Jacques Prost: "Tissues as Active Systems"

Unless otherwise stated, seminars and defences take place at 11:30 in room 454A of Condorcet building.

Tissues as Active Systems

Jacques Prost

Abstract: After introducing the notion of homeostatic pressure, I will subsequently introduce dynamical equations, which exhibit fluid like behavior on time scales long compared to duplication and apoptosis times, in the vicinity of homeostatic conditions. Subsequently, I will describe stress-clamp experiments, which provide numbers on the effects of stress on cell division and apoptosis and introduce the idea of “active” tissue, which allows us to understand some aspects of experimental results. Then I will describe a dynamical transition in nematic epithelia which we predicted more than ten years ago in the context of active gels: a nematic epithelial tissue placed on stripes of different width, switches from a perfectly quiescent state to a spontaneously shearing state, simply by changing the stripe width! Eventually, I will shortly give some conjectures about long time electric effects on polar tissues.

Thursday May 16 at 12:30pm in room 454A

Contact : Équipe séminaires / Seminar team - Published on / Publié le 3 May

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