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Abstract The line defects of three dimensional uniaxial nematics have a simple abelian algebra governing their interactions and so simply pass through one another. I will discuss, instead, biaxial nematics for which the fundamental group is non-abelian. …

Abstract Although the genome is often called the blueprint of an organism, it is perhaps more accurate to describe it as a parts list composed of the various genes that may or may not be used in the different cell types of a multicellular organism. …

Abstract Data assimilation is the set of key mathematical methods used to optimally combine observations and numerical model outputs. Data assimilation (DA) is critical to adjust the initial condition of meteorological forecasts, to estimate model …

Abstract The stunning recent advances in AI content generation rely on cutting-edge, generative deep learning algorithms and architectures trained on massive amounts of text, image, and video data. With different training data, these algorithms and …

Abstract This presentation will cover some of the recent advances in weather forecasting, learning directly from data using machine learning techniques. It will discuss some of the limitations and pitfalls of training ML models for scientific …

Abstract While AI has been disrupting conventional weather forecasting, we are only beginning to witness the impact of AI on long-term climate simulations. The fidelity and reliability of climate models has been limited by computing capabilities. These …

Abstract Mathematical and numerical models of the atmosphere and ocean rely on various assumptions, approximations, and simplifications. Over the past decade, significant progress has been made in elucidating their structure and interconnections, …

Abstract I will discuss the Neural GCM, which we built by building a dynamical core in JAX and then training the parameterization on ERA5 on 5-day forecasts. The quality of the forecasts up to 1 year portends a potential revolution in improving model …

Roundtable discussion moderated by Stéphane Pair, France Info, with the participation of Éric Monnet, EHESS, Denis Cogneau, IRD, EHESS and PSE, and Jean-Marie Théodat, Université Paris 1 …

Panagiota Sarischouli is invited by Prof. Jean-Luc Fournet, Chair of Written Culture in Late Antiquity and Byzantine Papyrology . Abstract Although the phenomenon of voces magicae is most often associated with Roman and Late Antique Egypt, the use of …

Abstract Origin and evolution of the Osirian statue. Large groups of Osirid statues and pillars in temple lecture halls. Evolution of the mummiform type of accoutrement; transition from shroud to ceremonial costume. Representation of the god in royal …