QLS

Europe/Rome 2020-09-22 16:00:00 2020-09-22 18:00:00 First a war, then a dance: Mechanochemical symmetry breaking in sensory organ development https://zoom.us/j/475819702 Meeting ID: 475-819-702 If you haven't registered for previous QLS webinars, please contact qls@ictp.it to obtain the PASSWORD for this zoom meeting. Actively regulated symmetry breaking, which is ubiquitous in biological cells, underlies phenomena such as directed cellular movement and morphological polarization. Here, we investigate how an organ-level polarity pattern emerges through symmetry breaking at the cellular level during the formation of a mechanosensory organ. Combining theory, genetic perturbations and in vivo imaging, we study the development and regeneration of the fluid-motion sensors in the zebrafish’s lateral line. We find that two interacting symmetry-breaking events—one mediated by biochemical signalling and the other by cellular mechanics—give rise to precise rotations of cell pairs, which produce a mirror-symmetric polarity pattern in the receptor organ. Zoom meeting ICTP pio@ictp.it 22 Sep 2020

Europe/Rome 2020-11-02 07:00:00 2020-11-13 21:00:00 School on Collective Animal Behaviour *POSTPONED* | (smr 3432) Note: ICTP has suspended all educational activities from 24 February to 15 May as precautionary measures due to COVID-19; more details at https://www.ictp.it/about-ictp/media-centre/news/2020/2/ictp_suspend_activities.aspx   The School has been POSTPONED TO 2 - 13 NOVEMBER 2020     <span style="font-size:11.0pt;font-family:"Times New Roman",serif; color:red;mso-ansi-language:EN-IE">  Collective behavior is a distinctive trait of human and animal societies. The School aims at providing a thorough introduction to basic notions and advanced topics in this subject from the viewpoints of physics, biology, computer science and robotics.   Provisional list of Speakers: Iain Couzin, Max Planck Institute of Animal Behavior, Konstanz Deborah Gordon, Stanford University Marcelo Magnasco, Rockefeller University, New York Melanie Moses, University of New Mexico David Sumpter, University of Uppsala Guy Theraulaz, CRCA, Toulouse     Havana - Cuba ICTP pio@ictp.it 2 Nov 2020 - 13 Nov 2020

Europe/Rome 2020-11-30 07:00:00 2020-12-18 21:00:00 Winter School on Quantitative Systems Biology: Quantitative Approaches in Ecosystem Ecology | (smr 3486) *** VIRTUAL on ZOOM *** Deadline for applications: 15 November 2020 The Winter School on Quantitative System Biology has been held every year since 2012 at ICTP in Trieste, Italy and ICTS in Bangalore, India in alternating years. The topic of the 2020 School is Ecosystems Ecology, with a special focus on quantitative methods and modelling techniques. Ecology views biological systems as composed of many interdependent parts, whose interactions between themselves and the environment span a wide range of spatial and temporal scales (from cells to the biosphere). This incredible complexity of interactions parallels often with the simplicity of emergent statistical patterns of abundance and biodiversity, as well as nutrient cycling. Describing quantitatively the dynamics of populations, communities and ecosystems requires therefore a broad range of mathematical and modelling techniques. Thanks to new experimental and sequencing techniques, community and ecosystem ecology are experiencing a revolution, as they are transitioning from a traditionally data-poor discipline to a data-rich one. This change presents new challenges and new possibilities for ecologists, physicists, and mathematicians around the world. This advanced school will focus on ecosystems, and it aims at providing an integrated perspective of both experimental and theoretical approaches. The topics covered include: • Ecological networks; • Population and community dynamics; • Macroecology, including ecosystems and landscapes; • Ecological interactions; • Ecological Communities in-vitro. Ecology has extremely important applications, from environmental preservation to disease eradication. Most ecologists in the majority of developing countries have strong applied expertise, but they are not up to date with the most recent theoretical and quantitative tools and results. Applied ecologists, with some quantitative background, could strongly benefit from this school, both in terms of exposure to fundamental questions in ecology, and of quantitative methods that they could apply to their research. On the other hand, the strong expertise in quantitative and theoretical tools (e.g., dynamical systems theory, stochastic processes, random matrix theory) of physicists and mathematicians from developing countries is sometimes dissipated to study problems of secondary relevance. This school could offer them exposure to up-to-date problems in quantitative ecology, where those theoretical tools could find interesting and novel applications. Speakers  (to be confirmed) <span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-font-family: "Times New Roman";mso-ansi-language:IT">Stefano Allesina            The University of Chicago Daniel Fisher<span style="mso-tab-count: 2">                Stanford University <span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-font-family: "Times New Roman";mso-ansi-language:IT">Marino Gatto<span style="mso-tab-count: 2">                 Politecnico, Milan <span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-font-family: "Times New Roman";mso-ansi-language:IT">Vishwesha Guttal<span style="mso-tab-count: 1">          IISc, Bangalore <span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-font-family: "Times New Roman";mso-ansi-language:IT">Sonia Kefi<span style="mso-tab-count: 2">                     ISEM Montpellier <span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-font-family: "Times New Roman";mso-ansi-language:EN-GB">Jonathan Levine            Princeton University <span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-font-family: "Times New Roman";mso-ansi-language:EN-GB">Michel Loreau<span style="mso-tab-count: 1">               CNRS Paris <span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-font-family: "Times New Roman";mso-ansi-language:EN-GB">Amos Maritan<span style="mso-tab-count: 2">               University of Padua <span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-font-family: "Times New Roman";mso-ansi-language:EN-GB">Mercedes Pascual         The University of Chicago <span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-font-family: "Times New Roman";mso-ansi-language:EN-GB">Andrea Rinaldo             EPFL <span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-font-family: "Times New Roman";mso-ansi-language:EN-GB">Alvaro Sanchez             Yale University <span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-font-family: "Times New Roman";mso-ansi-language:EN-GB">Daniel Segrè<span style="mso-tab-count: 1">                 <span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-font-family: "Times New Roman";mso-ansi-language:IT">Boston University <span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-font-family: "Times New Roman";mso-ansi-language:IT">Carla Staver<span style="mso-tab-count: 1">                 Yale University <span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-font-family: "Times New Roman";mso-ansi-language:EN-GB">Justin Yeakel<span style="mso-tab-count: 1">                University of California, MERCED   ICTP ICTP pio@ictp.it 30 Nov 2020 - 18 Dec 2020

Europe/Rome 2021-02-22 07:00:00 2021-03-19 21:00:00 Spring College on the Physics of Complex Systems | (smr 3556) ICTP ICTP pio@ictp.it 22 Feb 2021 - 19 Mar 2021