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Séminaires à venir

30
AVR
Shedding light on micro-algae: phototaxis-induced collective phenomena
Par Raphaël Jeanneret - LPENS, Physics Department ENS
Le 30 Avril 2024 à 11h00 - Laboratoire Jean Perrin - Campus Jussieu - T 32-33 - 5e et. - P533
Motile micro-algae modify their environment by absorbing light, consuming and releasing chemical compounds and generating flows. Flows, light, and chemicals in turn influence their motion. These ...
21
MAI
TBA
Par Wolfram Pönisch - The University of Cambridge, UK
Le 21 Mai 2024 à 11h00 - Laboratoire Jean Perrin - Campus Jussieu - T 32-33 - 5e et. - P533
TBA
28
MAI
TBA
Par Pierre Nassoy - BioImaging OptoFluidics Lab - LP2N - Univ. Bordeaux
Le 28 Mai 2024 à 11h00 - Laboratoire Jean Perrin - Campus Jussieu - T 32-33 - 5e et. - P533
A venir
04
JUN
TBA
Par Yoel Forterre - Laboratoire IUSTI, UMR 7343 CNRS, Aix Marseille University
Le 4 Juin 2024 à 11h00 - Laboratoire Jean Perrin - Campus Jussieu - T32-33, 5e étage - P.531
A venir


Séminaires passés

Séminaire interne.
Par Angelo Charry and Maxime Deforet
Le 2 Avril 2024 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33
Séminaire interne. Les résumés se trouvent sur la version anglaise de la page.
Mechanics and polarity in B cells
Par Paolo Pierobon (Institut Cochin, CNRS , Université Paris Cité)
Le 26 Mars 2024 à 11h00 - Laboratoire Jean Perrin - Campus Jussieu - T 32-33 - 5e et. - P533
B cells serve as the primary producers of antibodies within the immune system. To elicit an effective immune response, they must recognize and internalize antigens through a specialized signaling ...
Oriented flows in biological tissues
Par Matthias Merkel (CPT, Marseille)
Le 19 Mars 2024 à 11h00 - salle de séminaires 5ème étage - LJP - Tour 32-33
I will talk about two project involving oriented tissue flows. 1) Most animals display one or more body axes (e.g. head-to-tail, left-right, ventral-dorsal), which usually emerge during early ...
Exploring Adaptive Collective Systems with Swarms of Learning Robots
Par Nicolas Bredèche (ISIR, SU)
Le 12 Mars 2024 à 11h00 - salle de séminaires 5ème étage - LJP - Tour 32-33
I will give a brief overview of the research we are conducting on using robot swarms to study adaptive collective systems in the physical world. I will focus on (1) robot swarm to study physical ...
Séminaire interne
Par Internal Seminar: Clément Nizak, Martin Maliet
Le 5 Mars 2024 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33
Séminaire interne.
TBA
Par Jeremy O'Byrne (LJP)
Le 30 Janvier 2024 à 11h00 - salle de séminaires 5ème étage - LJP - Tours 32-33
TBA
Topology and robustness in early fate decision in the fly embryo
Par Arghyadip Mukherjee (ENS Paris)
Le 23 Janvier 2024 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33
During embryogenesis, the earliest cell fate decision is often linked to nuclear positioning, whose control arises from the integration of the cell cycle oscillator and associated cytoskeletal ...
Structured populations and other stories
Par Alia Abbara (EPFL)
Le 9 Janvier 2024 à 11h00 - salle de séminaires 5ème étage - LJP - Tour 32-33
A classical question in population genetics is to understand the spread of a mutant with a fitness advantage in a population, in  particular its fixation probability. This question has been ...
TBA
Par Samuel Bell (LJP)
Le 19 Décembre 2023 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33
TBA
Constraining the immune system dynamics with a coevolving population: the HIV, flu and microbiome cases
Par Andrea Mazzolini (LPENS)
Le 5 Décembre 2023 à 11h00 - salle de séminaires 5ème étage - LJP - Tour 32-33
The adaptive immune system is an extremely complex machinery that continuously evolves to recognize and fight external pathogens. This chase is often made harder by the fact that pathogens also evolve...
Can we program DNA reaction-diffusion fronts with molecular motors
Par Nicolas Lobato-Dauzier (Laboratoire Jean Perrin, Sorbonne Université)
Le 28 Novembre 2023 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33
Couplings between biochemical and mechanical processes have a profound impact on embryonic development. However, in-vitro studies capable of quantifying these interactions have remained elusive. I ...
Internal LJP Seminar
Par Internal Seminar: Matteo Dommanget-Kott, Jean-Christophe Galas
Le 21 Novembre 2023 à 11h00 - Salle de séminaires 5ème étage - LJP
Ecology of host and pathogen and limited predictability of evolution
Par Pierre Barrat-Charlaix (PoliTo)
Le 14 Novembre 2023 à 11h00 - salle de séminaires 5ème étage - LJP - 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 ...
Flexible selection of task-relevant features through population gating
Par Joao Barbosa (ENS Paris)
Le 7 Novembre 2023 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33
Brains can gracefully weed out irrelevant stimuli to guide behavior. This feat is believed to rely on a progressive selection of task-relevant stimuli across the cortical hierarchy, but the specific ...
Internal LJP Seminar
Par Internal Seminar: Gaspard Junot, Georges Debregeas
Le 24 Octobre 2023 à 11h00 - Salle de séminaires 5ème étage - LJP
Topological defects control morphogenesis of mesenchymal tissues in vitro
Par Claire Dessalles (University of Geneva, Switzerland)
Le 17 Octobre 2023 à 11h00 - Salle de séminaires 5ème étage - LJP - Tours 32-33
Morphogenesis, the process by which tissues acquire their shape, hinges on a finely orchestrated collective motion of cells autonomously choreographing themselves to a well-defined final position. ...
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...
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 ...

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