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X-WR-CALDESC:Évènements pour Chimie ParisTech - PSL
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DTSTART;TZID=Europe/Paris:20210909T080000
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SUMMARY:Rentrée 2021 : PSL Antropocène
DESCRIPTION:  \nA la rentrée universitaire 2021\, l’Université PSL propose\, en s’appuyant sur l’engagement de ses étudiantes et étudiants\, de mettre en avant la thématique de l’anthropocène dans le cadre d’un cycle de conférences et de divers événements ouverts à toutes et tous. \nRetrouvez tous les détails ici
URL:https://www.chimieparistech.psl.eu/evenement-agenda/rentree-2021-psl-antropocene/
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DTSTART;TZID=Europe/Paris:20211004T110000
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SUMMARY:Séminaire Programme Gradué Chimie PSL
DESCRIPTION:Instabilities and geometry of growing tissues\nDoron Grossman\,\nCollège de France\n \nThe vertex model is a discrete often used to described cellular media\, where elastic energy depends on the difference of cells’ actual area and perimeter from a reference values. Cells are allowed to change neighbors via di fferent topological transition – including division\, apoptosis and so – called T1 transitions. We derive a complete\, coarse grained\, continuum model of the 2D vertex model\, applicable for di fferent underlying geometries\, and allows for analytical analysis. Using a geometric approach and out-of-equilibrium statistical mechanics\, we calculate both mechanical and dynamical instabilities within a tissue\, and their dependence on diff erent variables\, including activity\, and disorder. Most notably\, the tissue’s response depends on the existence of mechanical residual stresses on a cellular level. Thus\, even freely growing tissues may exhibit a growth instability depending on food consumption. Using this geometric model we can readily distinct between elasticity and plasticity in a growing\,  flowing\, tissue.\n \nThe seminar will be in hybrid format both in the Gulliver library and by zoom:\nhttps://us02web.zoom.us/j/83595816412?pwd=Q1VNbEdPcFMvNm9rSkpXRFRSZmlTUT09\nID de réunion : 835 9581 6412\nCode secret : 399084
URL:https://www.chimieparistech.psl.eu/evenement-agenda/seminaire-programme-gradue-chimie-psl-50/
LOCATION:Visioconférence
CATEGORIES:Séminaire
ATTACH;FMTTYPE=image/png:https://www.chimieparistech.psl.eu/wp-content/uploads/2020/06/chimie1.png
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DTSTART;TZID=Europe/Paris:20211004T113000
DTEND;TZID=Europe/Paris:20211004T123000
DTSTAMP:20210929T121752Z
CREATED:20210929T121539Z
LAST-MODIFIED:20210929T121752Z
UID:22286-1633347000-1633350600@www.chimieparistech.psl.eu
SUMMARY:Séminaire Programme Gradué Chimie PSL
DESCRIPTION:Instabilities and geometry of growing tissues\n \nDoron Grossman (Collège de France)\n \nAbstract: The vertex model is a discrete often used to described cellular media\, where elastic energy depends on the difference of cells’ actual area and perimeter from a reference values. Cells are allowed to change neighbors via di fferent topological transition – including division\, apoptosis and so – called T1 transitions. We derive a complete\, coarse grained\, continuum model of the 2D vertex model\, applicable for di fferent underlying geometries\, and allows for analytical analysis. Using a geometric approach and out-of-equilibrium statistical mechanics\, we calculate both mechanical and dynamical instabilities within a tissue\, and their dependence on diff erent variables\, including activity\, and disorder. Most notably\, the tissue’s response depends on the existence of mechanical residual stresses on a cellular level. Thus\, even freely growing tissues may exhibit a growth instability depending on food consumption. Using this geometric model we can readily distinct between elasticity and plasticity in a growing\,  flowing\, tissue.\n\nThe seminar will be in hybrid format both in the Gulliver library and by zoom:\n\nhttps://us02web.zoom.us/j/83595816412?pwd=Q1VNbEdPcFMvNm9rSkpXRFRSZmlTUT09\n\nID de réunion : 835 9581 6412\nCode secret : 399084
URL:https://www.chimieparistech.psl.eu/evenement-agenda/seminaire-programme-gradue-chimie-psl-47/
LOCATION:Visioconférence
CATEGORIES:Séminaire
ATTACH;FMTTYPE=image/png:https://www.chimieparistech.psl.eu/wp-content/uploads/2020/06/chimie1.png
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