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Interactions between species in nature can lead to fluctuations in population sizes, as for example in a two-species predator-prey system. What dynamical behavior should we expect when many species are involved, as is often the case in nature? I will …

Abstract From intragenomic conflicts to mutualistic symbioses, biological interactions invite us to question the foundations of a rarely-explained concept that is nonetheless essential to Darwinian reasoning : the individual. The individual as " level of …

The machine metaphor does not apply well to living elements. Every cell derives from a cell. Every living thing derives from another living thing. The future dynamics of an ecosystem can only be understood in the light of its past history. Synthetic …

Abstract Although water is essential to life, it is often regarded as an economic good that must be managed according to the logic of the market. This commodification of water carries risks and impacts on respect for human rights to drinking water and …

Abstract In this talk, I will present results concerning a constructive approach to the Krein-Rutman theorem motivated by the asymptotic analysis of evolution PDEs. These results have been obtained in a recent work carried out in collaboration with …

Abstract Water is used for many economic purposes, from river transport to irrigation methods and industrial activities. They have all left their mark on the principles and rules applicable in this field. The question of the economic value of water has …

Can a sentence be represented by a vector ? The problem of " compositionality " consists in finding a code that combines individual word representations while also managing to encode their composition, i.e. their syntactic and semantic organization. We …

A look at eastern Iran : Kuh-e Khwâjah (Sistân), in the light of comparison with Bandiyân (Khurâsân). …

In Hesiod's Theogony , Demeter is a goddess of the generation of Zeus : daughter of Rhea and Kronos, granddaughter of Gaia and Ouranos. In accordance with the genealogical principle that divine children specialize the functions of their parents, the …

Abstract The aim of this conference is to organize the thoughts generated by the presentation of the data in such a way as to stimulate a real debate on the Roman economy, based on the most up-to-date research. Emphasis is placed on the nature and …

Abstract Feeling the warmth of the sun's rays on your skin. Following a flock of birds in the distance. While our senses enable us to apprehend the world around us and act accordingly, they also introduce biases into our understanding of biodiversity and …

Abstract The concept of entropy is fundamental to physics and theoretical computer science. Recent advances have shown that it plays a very important role in many other scientific fields. In this talk, Giulio Biroli presents the multidisciplinary and …

Abstract Typical sets and the asymptotic equipartition theorem are extended to the case of independent variables with continuous values. The properties of conditional entropy and Kullback-Liebler divergence are studied, as well as mutual information and …

Abstract Hydrodynamics at the solid interface is a fundamental property of fluids, as important as their constitutive equation, in determining their flow. Historically, experimental evidence has been decisive in identifying the hydrodynamic boundary …

Over the last ten years or so, nanofluidics has taken an enormous leap forward. It is now possible to fabricate and study nano-channels as small as a few nanometers, or even a few angstroms. Advances in measurement techniques now make it possible to …

Abstract According to Paul Valéry, art presupposes several ways of doing . This imposes a choice in the genetics of the text, which will separate the work between an origin and an end, which are not necessarily identical. For example, among the possible …

Abstract At the same time as Valéry was expounding the idea of a pure poetry, based on the model of music, which provoked heated debate in the years 1920, he also considered that poetry was dead (along with the generation that had died on the battlefields …

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