Share Facebook LinkedIn Bluesky Threads Copy url Search results Search 28122 results Filters Content type Content type Lessons (24007) News (1735) People (1371) Chair (360) Editions (360) Page (230) Research (27) Library (14) Annual Chair (12) Award (6) Event Guy Bertrand Carbenes in SET Processes Symposium Abstract Over the last three decades, the highly tunable properties of NHCs and other stable singlet carbenes have led to a variety of applications. We will discuss a novel facet of carbenes, i.e., their reductive properties, which allows carbenes to … 14 May 2025 17:20 to 18:10 Event Armido Studer Radical Hydrogen Atom Transfer Reactions to Unactivated p-Systems Symposium Abstract We demonstrate water activation by a photocatalytic phosphine-mediated radical process, generating a PR3-H2O radical cation intermediate, where both hydrogen atoms are used in the following chemical transformation through sequential cleavage of … 14 May 2025 16:30 to 17:20 Event Erica Benedetti Synthesis and Applications of Chiral Luminescent [2.2]Paracyclophanes Symposium Abstract Originally discovered via vapor-phase pyrolysis of p-xylene , 1 [2.2]paracyclophanes (pCps) have garnered significant attention due to their unique three-dimensional architecture2 and inherent planar chirality. 3 Despite their promising … 14 May 2025 15:20 to 16:10 Event Thomas Poisson Electrooxidative Functionalization of Alkenes and Alkynes Symposium Abstract As part of the organic chemistry, radical chemistry is an important research area as the one electron reactivity is complementary to the ones of the two electrons and polar manifolds. In this regard, electrochemistry, which enjoy a renewal, … 14 May 2025 14:30 to 15:20 Event Matteo Bächtold, Damien Delorme & Guillaume Guez Maillard Atmospheric water at a glance Special events Project managed by : Thomas Römer, Chair of The Hebrew Bible and its Contexts . Abstract Atmospheric water, in the form of vapor, liquid water droplets and ice crystals, plays a major role in the physics of the atmosphere and climate. Alongside other … 12 Jun 2025 18:00 to 19:00 Event Erli Lu Electron Transfer in Subvalent Group-1 Alkali Metal Chemistry Symposium Abstract Historically, group-1 alkali metal chemistry is dominated by +1 oxidation state. As the least electronegative elements in the Periodic Table, zero-valent alkali metals are prone to give out their only valence shell electron, i.e., acting as … 14 May 2025 12:10 to 13:00 Event Guillaume Vincent Oxidative Couplings and Total Synthesis of Natural Products Symposium Abstract Our group aims to study the total synthesis of complex natural products. We particularly deploy oxidative coupling strategies via single electron transfer (SET) processes among others tactics. We also study electrochemistry to access three … 14 May 2025 11:20 to 12:10 Event Laurence Grimaud Electro-Induced Isocyanide-Based Multicomponent Reactions Symposium Abstract Since the pioneering report of the oxidative three-component Passerini reaction using a stoichiometric oxidant, [1] oxidative Isocyanide-based multicomponent reactions (IMCRs) have opened new avenues for accessing diverse chemical space from … 14 May 2025 10:00 to 10:50 Event Burkhard König Better Organic Synthesis with Light Symposium Abstract Photoinduced electron transfer is the key step in photoredox catalysis. We will briefly review the essential parameters affecting photoinduced electron transfer and how we can control them for the benefit of synthesis. Next, we discuss recent … 14 May 2025 09:10 to 10:00 Series Type theory, from Russell to demonstration assistants Thierry Coquand, chair Computer Sciences and Digital Technologies Opening lecture 13 Mar 2025 News A climate of inequality Philippe Aghion, chair Economics of Institutions, Innovation and Growth Seaweed farming against gender inequality and climate change, woman working on the beach Between the most affluent and the most precarious, between the countries of the North and those of the South, between the cities and the countryside... climate change … Published on 18 September 2025 News The contribution of African languages to linguistics Luigi Rizzi, chair General Linguistics Each month, a topical scientific subject is explored by a researcher from the Collège de France. Paul Roger Bassong Is there such a thing as the universality of human language ? By decentralizing the way linguistics looks at itself, the study of African … Published on 18 September 2025 Series In search of an Avenir Commun Durable Avenir Commun Durable Special events Like an ecosystem, knowledge is never an immutable, balanced sum of knowledge. It is constantly changing, nourished by research, its advances and its contradictions. This is all the more true in the face of contemporary challenges, where scientific … 04 Feb 2025 → 12 Jun 2025 Event Shiwei Zhang Ushering a New Era of Synergy Between Computational Quantum Physics and Cold Atoms Experiment Seminar Abstract Computational quantum physics has recently seen a dramatic increase in its capabilities, precision, and predictive power. The advances have been driven by method and code development, benchmark, and collaboration. Together with exciting recent … 14 May 2025 14:00 to 15:00 News Do fish have fingers? Denis Duboule, chair Evolution of Development and Genomes Expression of a " finger gene " in a fish fin 380 million years ago, Our Ancestors the fish began to colonize dry land, evolving into numerous vertebrate species equipped with hands and feet for locomotion. Understanding how these structures evolved … Published on 18 September 2025 Event Frantz Grenet Sogdiane: state of the art and research in progress (2) Symposium The symposium will be held on Tuesday 2 and Wednesday 3 July 2025 at the ENS, in the Jean Jaurès amphitheatre (entrance via 28 rue Lhomond, 75005 Paris). Program Pre-Islamic Late Antiquity (200 - 750 CE) 9.00am - 9.30am: "Preliminary Results of the Study … 3 Jul 2025 09:00 to 18:00 Event François-Marie Bréon Conclusions and end of the symposium Symposium 15 May 2025 17:20 to 18:00 Event Pierre Alexandre Royoux Geoengineering from a political perspective Symposium Abstract After a brief introduction to the CGDD, the research sub-department and their involvement in geoengineering, this talk will present current French positions on the two main families of techniques, carbon removal (EDC) and solar radiation … 15 May 2025 15:50 to 16:35 Event Samantha Besson Geoengineering under international law Symposium Abstract Marine geoengineering (the specific subject of this talk) is one of the scientific techniques that could ultimately help combat global warming. As such, it is the subject of this symposium. However, it also presents a serious and irreversible … 15 May 2025 14:45 to 15:30 Event Fabrice Del Corso CO2, from use to geological storage Symposium Abstract CO 2 is a molecule that has already been used on a large scale for decades for a variety of applications: chemistry, agri-food, plant growth, extinguishing agent, water treatment... The geological storage of CO 2 has also been implemented for … 15 May 2025 14:00 to 14:45 Event Caroline Thaler Negative emissions: the startup ecosystem in France Symposium Abstract Achieving carbon neutrality (Net Zero) by 2050 requires, in addition to massive emissions reductions, the development of tools to actively remove CO 2 from the atmosphere. So-called "negative emissions" technologies have become an indispensable … 15 May 2025 12:15 to 13:00 Event Nicolas Viovy Carbon capture and storage by terrestrial ecosystems and nature-based solutions Symposium Abstract Most scenarios developed to limit global warming involve negative emissions, i.e. the sequestration of carbon dioxide from the atmosphere. In this context, ecosystems, which currently absorb almost a quarter of our emissions, represent one of the … 15 May 2025 11:30 to 12:15 Event Éric Lambin Changes in solar radiation: risks, uncertainties and governance Symposium Abstract A commonly discussed form of geoengineering is the modification of solar radiation. A number of technologies could be used to reduce solar radiation incident on the Earth in order, in theory, to counteract global warming. In 2024, the European … 15 May 2025 10:20 to 11:10 Event Francis Albarède Geoengineering assessment at the Academy of Sciences Symposium Abstract This presentation explores geoengineering – a set of ideas aimed at cooling the planet if cutting greenhouse gas emissions isn’t enough to stop climate change. It looks at two main strategies: Solar Radiation Management (SRM) and Carbon Dioxide … 15 May 2025 10:00 to 10:20 Pagination First page « First Previous page ‹‹ … Page 118 Page 119 Page 120 Page 121 Page 122 Page 123 Page 124 Page 125 Page 126 … Next page ›› Last page Last »
Event Guy Bertrand Carbenes in SET Processes Symposium Abstract Over the last three decades, the highly tunable properties of NHCs and other stable singlet carbenes have led to a variety of applications. We will discuss a novel facet of carbenes, i.e., their reductive properties, which allows carbenes to … 14 May 2025 17:20 to 18:10
Event Armido Studer Radical Hydrogen Atom Transfer Reactions to Unactivated p-Systems Symposium Abstract We demonstrate water activation by a photocatalytic phosphine-mediated radical process, generating a PR3-H2O radical cation intermediate, where both hydrogen atoms are used in the following chemical transformation through sequential cleavage of … 14 May 2025 16:30 to 17:20
Event Erica Benedetti Synthesis and Applications of Chiral Luminescent [2.2]Paracyclophanes Symposium Abstract Originally discovered via vapor-phase pyrolysis of p-xylene , 1 [2.2]paracyclophanes (pCps) have garnered significant attention due to their unique three-dimensional architecture2 and inherent planar chirality. 3 Despite their promising … 14 May 2025 15:20 to 16:10
Event Thomas Poisson Electrooxidative Functionalization of Alkenes and Alkynes Symposium Abstract As part of the organic chemistry, radical chemistry is an important research area as the one electron reactivity is complementary to the ones of the two electrons and polar manifolds. In this regard, electrochemistry, which enjoy a renewal, … 14 May 2025 14:30 to 15:20
Event Matteo Bächtold, Damien Delorme & Guillaume Guez Maillard Atmospheric water at a glance Special events Project managed by : Thomas Römer, Chair of The Hebrew Bible and its Contexts . Abstract Atmospheric water, in the form of vapor, liquid water droplets and ice crystals, plays a major role in the physics of the atmosphere and climate. Alongside other … 12 Jun 2025 18:00 to 19:00
Event Erli Lu Electron Transfer in Subvalent Group-1 Alkali Metal Chemistry Symposium Abstract Historically, group-1 alkali metal chemistry is dominated by +1 oxidation state. As the least electronegative elements in the Periodic Table, zero-valent alkali metals are prone to give out their only valence shell electron, i.e., acting as … 14 May 2025 12:10 to 13:00
Event Guillaume Vincent Oxidative Couplings and Total Synthesis of Natural Products Symposium Abstract Our group aims to study the total synthesis of complex natural products. We particularly deploy oxidative coupling strategies via single electron transfer (SET) processes among others tactics. We also study electrochemistry to access three … 14 May 2025 11:20 to 12:10
Event Laurence Grimaud Electro-Induced Isocyanide-Based Multicomponent Reactions Symposium Abstract Since the pioneering report of the oxidative three-component Passerini reaction using a stoichiometric oxidant, [1] oxidative Isocyanide-based multicomponent reactions (IMCRs) have opened new avenues for accessing diverse chemical space from … 14 May 2025 10:00 to 10:50
Event Burkhard König Better Organic Synthesis with Light Symposium Abstract Photoinduced electron transfer is the key step in photoredox catalysis. We will briefly review the essential parameters affecting photoinduced electron transfer and how we can control them for the benefit of synthesis. Next, we discuss recent … 14 May 2025 09:10 to 10:00
Series Type theory, from Russell to demonstration assistants Thierry Coquand, chair Computer Sciences and Digital Technologies Opening lecture 13 Mar 2025
News A climate of inequality Philippe Aghion, chair Economics of Institutions, Innovation and Growth Seaweed farming against gender inequality and climate change, woman working on the beach Between the most affluent and the most precarious, between the countries of the North and those of the South, between the cities and the countryside... climate change … Published on 18 September 2025
News The contribution of African languages to linguistics Luigi Rizzi, chair General Linguistics Each month, a topical scientific subject is explored by a researcher from the Collège de France. Paul Roger Bassong Is there such a thing as the universality of human language ? By decentralizing the way linguistics looks at itself, the study of African … Published on 18 September 2025
Series In search of an Avenir Commun Durable Avenir Commun Durable Special events Like an ecosystem, knowledge is never an immutable, balanced sum of knowledge. It is constantly changing, nourished by research, its advances and its contradictions. This is all the more true in the face of contemporary challenges, where scientific … 04 Feb 2025 → 12 Jun 2025
Event Shiwei Zhang Ushering a New Era of Synergy Between Computational Quantum Physics and Cold Atoms Experiment Seminar Abstract Computational quantum physics has recently seen a dramatic increase in its capabilities, precision, and predictive power. The advances have been driven by method and code development, benchmark, and collaboration. Together with exciting recent … 14 May 2025 14:00 to 15:00
News Do fish have fingers? Denis Duboule, chair Evolution of Development and Genomes Expression of a " finger gene " in a fish fin 380 million years ago, Our Ancestors the fish began to colonize dry land, evolving into numerous vertebrate species equipped with hands and feet for locomotion. Understanding how these structures evolved … Published on 18 September 2025
Event Frantz Grenet Sogdiane: state of the art and research in progress (2) Symposium The symposium will be held on Tuesday 2 and Wednesday 3 July 2025 at the ENS, in the Jean Jaurès amphitheatre (entrance via 28 rue Lhomond, 75005 Paris). Program Pre-Islamic Late Antiquity (200 - 750 CE) 9.00am - 9.30am: "Preliminary Results of the Study … 3 Jul 2025 09:00 to 18:00
Event Pierre Alexandre Royoux Geoengineering from a political perspective Symposium Abstract After a brief introduction to the CGDD, the research sub-department and their involvement in geoengineering, this talk will present current French positions on the two main families of techniques, carbon removal (EDC) and solar radiation … 15 May 2025 15:50 to 16:35
Event Samantha Besson Geoengineering under international law Symposium Abstract Marine geoengineering (the specific subject of this talk) is one of the scientific techniques that could ultimately help combat global warming. As such, it is the subject of this symposium. However, it also presents a serious and irreversible … 15 May 2025 14:45 to 15:30
Event Fabrice Del Corso CO2, from use to geological storage Symposium Abstract CO 2 is a molecule that has already been used on a large scale for decades for a variety of applications: chemistry, agri-food, plant growth, extinguishing agent, water treatment... The geological storage of CO 2 has also been implemented for … 15 May 2025 14:00 to 14:45
Event Caroline Thaler Negative emissions: the startup ecosystem in France Symposium Abstract Achieving carbon neutrality (Net Zero) by 2050 requires, in addition to massive emissions reductions, the development of tools to actively remove CO 2 from the atmosphere. So-called "negative emissions" technologies have become an indispensable … 15 May 2025 12:15 to 13:00
Event Nicolas Viovy Carbon capture and storage by terrestrial ecosystems and nature-based solutions Symposium Abstract Most scenarios developed to limit global warming involve negative emissions, i.e. the sequestration of carbon dioxide from the atmosphere. In this context, ecosystems, which currently absorb almost a quarter of our emissions, represent one of the … 15 May 2025 11:30 to 12:15
Event Éric Lambin Changes in solar radiation: risks, uncertainties and governance Symposium Abstract A commonly discussed form of geoengineering is the modification of solar radiation. A number of technologies could be used to reduce solar radiation incident on the Earth in order, in theory, to counteract global warming. In 2024, the European … 15 May 2025 10:20 to 11:10
Event Francis Albarède Geoengineering assessment at the Academy of Sciences Symposium Abstract This presentation explores geoengineering – a set of ideas aimed at cooling the planet if cutting greenhouse gas emissions isn’t enough to stop climate change. It looks at two main strategies: Solar Radiation Management (SRM) and Carbon Dioxide … 15 May 2025 10:00 to 10:20
