Séminaires à venir

26 SEP

Learning and memory in adult zebrafish: Insights from the last 10 years of research Par Alexis Buatois Le 26 Septembre 2023 à 11h00 - salle de séminaires 5ème étage - LJP - Tour 32-33 Alexis Buatois (1) Institute of Neuroscience and Physiology, Department of Neurochemistry and Psychiatry, University of Gothenburg, Su Sahlgrenska, 41345, Göteborg, Sweden The zebrafish has...

03 OCT

TBA Par Joao Barbosa (ENS Paris) Le 3 Octobre 2023 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33 TBA

17 OCT

TBA Par Claire Dessalles (University of Geneva, Switzerland) Le 17 Octobre 2023 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33 TBA

24 OCT

Internal LJP Seminar Par Internal Seminar: Gaspard Junot, - Le 24 Octobre 2023 à 11h00 - Salle de séminaires 5ème étage - LJP Internal seminar

21 NOV

Internal LJP Seminar Par Internal Seminar: Matteo Dommanget-Kott, - Le 21 Novembre 2023 à 11h00 - Salle de séminaires 5ème étage - LJP internal seminar

28 NOV

TBA Par Nicolas Lobato-Dauzier (Laboratoire Jean Perrin, Sorbonne Université) Le 28 Novembre 2023 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33 TBA

12 DÉC

TBA Par Arghyadip Mukherjee (ENS Paris) Le 12 Décembre 2023 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33 TBA

---

Séminaires passés

Assessing the complexity of large ecological communities through the prism of disordered systems Par Ada Altieri (Université Paris Cité) Le 19 Septembre 2023 à 11h00 - salle de séminaires 5ème étage - LJP - Tour 32-33   In this talk, I will address some timely questions in theoretical ecology — from configurational landscape analysis to the long-standing diversity/stability debate up to the emergence of...

Bottom-up engineering of bioinspired active systems for biological activity Par Isabella Guido (University of Surrey, UK) Le 12 Septembre 2023 à 11h00 - salle de séminaires 5ème étage - LJP - Tour 32-33 In nature, the self-assembly of biopolymers and motor proteins in the complex intracellular environment leads to interesting emergent behaviour that is crucial for cellular functions and motility. The...

Séminaire interne Par Internal Seminar: Raphaël Candelier, Samuel Bell Le 4 Juillet 2023 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33

Resource allocation in kinetic models of cell metabolism Par Wolfram Liebermeister (INRAE Jouy-en-Josas) Le 30 Mai 2023 à 11h00 - salle de séminaires 5ème étage - LJP - Tour 32-33 Metabolic fluxes in cells are often assumed to reflect an economical use of enzymes. To apply this principle of "minimal enzyme cost" to metabolic modelling and to study its biological consequences, I...

Séminaire interne Par Internal Seminar: André Estevez-Torres, Baptiste Blanc Le 16 Mai 2023 à 00h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33

Motion of zoospores approaching a root Par Philippe Thomen (Université Côte d’Azur) Le 9 Mai 2023 à 11h00 - salle de séminaires 5ème étage - LJP - Tour 32-33 Phytophthora species are plant pathogens that cause considerable damage to agrosystems and ecosystems, and have a major impact on the economy. Infection occurs when their biflagellate zoospores ...

Séminaire interne Par Internal Seminar: Maxime Deforet, Soumaiya Imarraine Le 11 Avril 2023 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33

Design principles, complexity and model selection constraining the logic in Boolean regulatory networks Par Olivier C. Martin (Institut des Sciences des Plantes de Paris Saclay) Le 4 Avril 2023 à 12h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33 Numerous modelers have inferred Boolean gene regulatory networks in different biological systems, taking genes to be either on or off depending on their inputs according to associated logic rules. ...

Adding automation and reactiveness to your experiments: motivation, tools and applications to cybergenetics Par Gregory Batt (Institut Pasteur, INRIA) Le 28 Mars 2023 à 11h00 - Salle de séminaires 5ème étage - LJP - Tour 32-33 Small-scale, low-cost bioreactors are emerging as powerful tools for microbial systems and synthetic biology research. They allow tight control of cell culture parameters over long durations. These ...

Collective movements of fish in complex environments Par Aurélie Dupont (LIPhy Grenoble) Le 21 Mars 2023 à 11h00 - salle de séminaires 5ème étage - LJP - Tour 32-33 Crowd movements can be observed across species and scales: from insectsto mammals but also in non-cognitive systems such as eukaryotic cells.But, what happens when gregarious animals have to ...

Synthetic DNA reaction-diffusion system for pattern formation, materialization, and wrinkling Par Ibuki Kawamata (Tohoku University, Ochanomizu University) Le 14 Mars 2023 à 11h00 - salle de séminaires 5ème étage - LJP - Tour 32-33 In this talk, I introduce our experimental attempts to design artificial chemical reaction-diffusion systems that mimic pattern formations and other phenomena of the early stage of biological ...

Catalysis from a physics perspective Par Olivier Rivoire (ESPCI) Le 14 Février 2023 à 11h00 - salle de séminaires 5ème étage - LJP - Tour 32-33 Catalysis, the acceleration of chemical reactions by substances that are not changed in the process, is essential to life as well as to our industry. The physical principles underlying catalysis are ...

Physics of Behavior Across Scales Par Antonio Carlos Costa (ENS Paris) Le 24 Janvier 2023 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33 Recent years have seen an explosion in our ability to measure the movement dynamics of animals in naturalistic environments. However, such data poses tremendous challenges for quantitative analysis, ...

Séminaire interne Par Internal Seminar: Marcus Ghosh, Quentin Guigue Le 10 Janvier 2023 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33

Diversity begets stability in competitive ecological communities Par Matteo Smerlak (MPI Leipzig) Le 13 Décembre 2022 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 Ecological theory has grappled for fifty years with the “diversity-stability debate”. On the one hand, random matrix arguments due to Robert May imply that large, complex ecosystems cannot...

Oxygen driven spreading and microphase separation in Dictyostelium discoideum Par Jean-Paul Rieu (Université Claude Bernard Lyon 1) Le 6 Décembre 2022 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33 Oxygen driven spreading and microphase separation of eukaryotic cells   J.-P. Rieu1,*, A. Carrère1, N. Ghazi1, C. Anjard1, F. Detchevery1, O. Cochet-Escartin1, S. Hirose3,K. Funamoto3, ...

Séminaire interne Par Claude Loverdo & Mafer Seow Le 29 Novembre 2022 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33 TBA

Mathematical approaches to modelling biological complexity: Inverse blebbing and tissue growth in Drosophila abdomen Par Andrea Cairoli (Crick Institute) Le 22 Novembre 2022 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 Cells are the building blocks of living systems and undoubtedly fascinating entities. They move autonomously, interact among themselves and with the microenvironment, react to external perturbations, ...

Navigation in larval zebrafish: strategies and internal representations Par Ruben Portugues (MPI TUM) Le 15 Novembre 2022 à 10h30 - salle 107 de l’UFR de physique, Tour 22-23 1er étage Animals navigate within their environment. To do so effectively, they may use sensory cues and/or persistent internal representations that can encode their position in space. In this talk, I will ...

Séminaire interne Par Nicolas Biais & Pierre Tapie Le 25 Octobre 2022 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33 TBA

Collective effects in driven matter: from one-dimensional crowding to 2D melting Par Alexis Poncet (ENS Lyon) Le 18 Octobre 2022 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 The theoretical description of the structure and dynamics of matter far from thermal equilibrium is at the heart of modern statistical physics. In this seminar, I will focus on two prototypical ...

Random perturbation of nanoscale copying machines Par Marco Ribezzi (ESPCI Paris) Le 4 Octobre 2022 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 Statistical mechanics allows us to explain or predict how macroscopic, deterministic laws arise out of molecular chaos and has found applications in areas where emergent behaviors stem from the ...

TBA Par Sharbatanu Chatterjee & Nidia Maldonado-Carmona Le 20 Septembre 2022 à 11h00 - Salle de séminaires 5ème étage, tour 32-33 TBA

soutenance d'HDR Par Claude Loverdo Le 5 Septembre 2022 à 14h00 - C404 Microbes which live in hosts grow from small numbers to very large population sizes, and interact physically with their environment. Here is a summary of my biophysical modeling work, which uses a mix...

Earthquake statistical properties: an explanation for the distribution of magnitude and for the existence of aftershocks Par François Petrelis (LPENS, Paris) Le 28 Juin 2022 à 11h00 - Salle de séminaires 5ème étage - LJP - Tour 32-33 Earthquakes in nature follow several statistical properties. In particular, the distribution of energy released by an earthquake (Gutenberg-Richter's law) and the frequency of aftershocks after a ...

Active-gel Theory for Multicellular Migration in the Extra-cellular Matrix Par Ram Adar (Collège de France & Institut Curie) Le 21 Juin 2022 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 We formulate an active-gel theory for multicellular migration in the extracellular matrix (ECM). The cells are modeled as an active, polar solvent, and the ECM as a viscoelastic solid. Our ...

TBA Par Andrea Cairoli (Crick Institute London) Le 14 Juin 2022 à 00h00 - Salle de séminaires 5ème étage - LJP - Tour 32-33 TBA

TBA Par Lorraine Montel (LJP, Sorbonne Université) Le 7 Juin 2022 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33 TBA

Filamentous bacteriophages: versatile model building blocks in soft matter and biomaterials Par Eric Grelet (CRPP Bordeaux) Le 17 Mai 2022 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 Filamentous bacteriophages with their features like outstanding monodispersity and their ability to self-organize into a myriad of ordered structures motivate the strong interest they have raised as ...

Choreographing the dance of active nematic defects Par Teresa Lopez-Leon (ESPCI Paris) Le 12 Avril 2022 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 Active nematics are biomimetic liquid crystals in which a 2D network of microtubule filaments is set in motion by the action of molecular motors (1, 2). In its steady state, this system usually ...

Coupled stochastic dynamics and kinetics simulations with applications to Biology and Chemistry Par Marina Katava (IBPC, Paris) Le 5 Avril 2022 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 Complex systems can be successfully modeled in computer simulations. Due to the high computational cost of the numerical algorithms, different techniques are adapted to suit particular time- and ...

Physics of mammalian blastocyst morphogenesis Par Jean-Léon Maître (Institut Curie, Paris) and Hervé Turlier (Collège de France, Paris) Le 29 Mars 2022 à 11h00 - Salle de séminaires 5ème étage - LJP - Tour 32-33 The formation of the blastocyst during preimplantation development constitutes a unique opportunity to study living mammalian embryos. The blastocyst consists of a surface epithelium enveloping a ...

Control of biological processes Par Efe Ilker (Max Planck Institute for the Physics of Complex Systems, Dresden) Le 22 Mars 2022 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 Time is a major constraint for life. Biological systems need to adapt and respond accurately to the changes in their environment. Having fine-grained control in nonequilibrium processes via external ...

Context-dependent selectivity to natural scenes in the retina Par Ulisse Ferrari and Olivier Marre (Institut de la Vision, Paris) Le 15 Mars 2022 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 Retina ganglion cells extract specific features from natural scenes and send this information to the brain. In particular, they respond to local light increase (ON responses), and/or decrease (OFF). ...

TBA Par Internal seminar Le 8 Mars 2022 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 TBA

Active mechanical and electrohydraulic properties of tissues Par Charlie Duclut (MSC, Université de Paris) Le 22 Février 2022 à 11h00 - salle de séminaires 5ème étage, Tour 32-33 Tissues are assemblies of large numbers of cells, which form a soft active material. Their dynamics are governed by chemical signals between cells, which both coordinate active mechanical processes ...

internal seminar Par internal seminar Le 18 Janvier 2022 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 internal seminar

Statistical mechanics for the analysis of immunogenic motives in SARS-COv2 sequences and beyond Par Simona Cocco (LPENS Paris) Le 11 Janvier 2022 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 When a virus enters a new host, it can present pathogen-associated molecular patterns (PAMPs) that are rarely seen in circulating strains that have adapted to that host’s immune environment over...

HDR : Mechanical properties of tissues and mechanosensitivy : a biomimetic approach Par Lea-Laëtita Pontani Le 14 Décembre 2021 à 14h00 - salle de séminaire du LJP, 5e étage, couloir 32-33 HDR

A multiscale chemotaxis assay to unravel how motile bacteria navigate their environment(s) Par Marianne Grognot (ESPCI Paris) Le 8 Décembre 2021 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 Flagellated bacteria swim by rotating one or several flagella; motility alone results in a random walk, but the flagella’s rotation can be influenced by an intracellular sensory system that ...

Spontaneous propulsion of an isotropic colloid in a phase-separating environment Par Pierre Illien (Sorbonne U) Le 7 Décembre 2021 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 The motion of active colloids is generally achieved through their anisotropy, as exemplified by Janus colloids. Recently, there was a growing interest in the propulsion of isotropic colloids, ...

Buckling and curling of epithelial monolayers Par Jonathan Fouchard (IBPS) Le 30 Novembre 2021 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 Epithelial monolayers are soft thin sheets which shape the body and organs of many multi-cellular organisms. Competition between stretching and bending characterizes shape transitions of thin elastic ...

Seasonal influenza viruses: Limited predictability of evolution & Inference of reassortment networks Par Pierre Barrat-Charlaix (Univ. Basel) Le 23 Novembre 2021 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33 Seasonal influenza viruses repeatedly infect humans in part because they rapidly change their antigenic properties and evade host immune responses, necessitating frequent updates of the vaccine ...