ESPCI web site
PMMH’s weekly seminar is held every Friday at 11 am (map)
Sylvain Patinet
Stéphane Perrard
Etienne Reyssat
Virgile Thiévenaz
PMMH
BARRE CASSAN
BAT A 1ER ETAGE CASE 18
7 QUAI SAINT BERNARD
75005 PARIS
France
Tel : (33) 1 40 79 45 22
Séminaire PMMH – Joseph Ackerman (Lab. Jean Perrin, Sorbonne Université)
How the interplay between the orientations of tumor microenvironment components controls its dynamics
The tumor microenvironment is a complex medium in which multiple components coexist. These include different cell types and the extracellular matrix. Interactions between these components determine the dynamic properties of this mixture. In particular, some of the components may have an orientational order (polar or nematic) that is related to an activity. The alignment or antialignment of these orientations can induce complex dynamics, such as slowing down due to aging processes or, on the contrary, flocking transition or cyclic dynamics. In this talk I will present two experiments and their physical description involving reciprocal and non-reciprocal interactions and some questions they raise.
References :
[1] Jacques, Cécile, et al. "Aging and freezing of active nematic dynamics of cancer-associated fibroblasts by fibronectin matrix remodeling." bioRxiv (2023) : 2023-11.
[2] Bell, Samuel, et al. "Ordering, spontaneous flows and aging in active fluids depositing tracks." arXiv preprint arXiv:2409.05195 (2024).
- Seminar archive
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Seminars (7)
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Séminaire PMMH - Ludovic Berthier, Gulliver
Vendredi 24 janvier de 11h00 à 12h00 - Salle réunion PMMH 1
Emerging active turbulence and chaotic advection in dense active matter
I will show that active mesoscale flows, a.k.a. active turbulence, leading to chaotic advection generically emerge in simple models of active particles leading to streams and vortices reminiscent of multiscale flow patterns in turbulence. The characteristics of these flows do not depend on the specific details of (...) -
Séminaire PMMH - Ludovic Berthier, Gulliver
Vendredi 24 janvier de 11h00 à 12h00 - Salle réunion PMMH 1
Emerging active turbulence and chaotic advection in dense active matter
I will show that active mesoscale flows, a.k.a. active turbulence, leading to chaotic advection generically emerge in simple models of active particles leading to streams and vortices reminiscent of multiscale flow patterns in turbulence. The characteristics of these flows do not depend on the specific details of (...) -
Séminaire PMMH - Elisabeth Lemaire (INPHYNI, Nice)
Vendredi 31 janvier de 11h00 à 12h00 - Salle réunion PMMH 1
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Séminaire PMMH - Elisabeth Lemaire (INPHYNI, Nice)
Vendredi 31 janvier de 11h00 à 12h00 - Salle réunion PMMH 1
Origins of shear-thinning in non-Brownian suspensions
The rheology of concentrated non-Brownian suspensions has undergone a small revolution in the last 15 years when the importance of the role played by solid contacts between particles was realized. Considering these contacts has allowed to explain the continuous or discontinuous shear-thickening in dense (...) -
Séminaire PMMH - Chandan Bose (Univ. Birmingham)
Vendredi 7 février de 11h00 à 12h00 - Salle réunion PMMH 1
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Séminaire PMMH - Christophe Denoual, CEA
Vendredi 14 février 2025 de 11h00 à 12h00 - Salle réunion PMMH 1
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Séminaire PMMH - Christophe Denoual, CEA
Vendredi 14 février de 11h00 à 12h00 - Salle réunion PMMH 1
The audience is composed of people with rather heterogeneous backgrounds including specialists in solids, fluids, granular flows, statistical physics... so the idea is to keep your talk understandable by people not necessarily working in your field... The seminar time slot runs from 11am to noon so the best is to make the talk last around 45 minutes to leave some time for discussion.
- Séminaires ESPCI-ENS de biophysique
- Séminaires du Département de Physique de l’ENS
- Séminaires du Laboratoire d’Hydrodynamique de l’X
- Séminaire de Mécanique d’Orsay (page web FAST)
- Séminaire de Mécanique d’Orsay (page web LIMSI)
- Séminaire de Mécanique des Fluides de l’Institut Jean le Rond d’Alembert
- Séminaires du laboratoire MSC, Paris VII
- Séminaires Gulliver
Link to cofee seminar (internal, every Thursday)
