Denis Vivares

www.larecherche.fr/chimie-ing%C...

Infrared radiation is an ancient pollination signal Color and scent are well-known pollinator cues. Some plants also produce heat, but its role remains unclear. Here, we report that plant-generated thermal infrared radiation serves as a pollination sig...

www.science.org/doi/10.1126/...

Detection of triboelectric discharges during dust events on Mars - Nature The SuperCam microphone aboard the Perseverance rover captured 55 triboelectric discharges during dust events on Mars over two Martian years, providing implications for examining the planet’s surface ...

www.nature.com/articles/s41...

Bio-essential sugars in samples from asteroid Bennu - Nature Geoscience Samples returned from asteroid Bennu contain bio-essential sugars such as ribose and glucose that may have formed in the parent asteroid from brines containing formaldehyde, according to a geochemical...

www.nature.com/articles/s41...

Aujourd’hui encore, les causes de cette "fièvre dansante" restent incertaines. Certains chercheurs évoquent une intoxication à l’ergot de seigle, tandis que d’autres privilégient des facteurs psychologiques liés au désespoir ou aux épidémies.⁠
➡️ https://l.franceculture.fr/O96

Les défis d’une IA frugale Alors que le développement de l’intelligence artificielle (IA) va réclamer toujours plus d’énergie, comment limiter son impact sur le changement climatique ?

"Le cerveau humain nous montre ainsi que les possibilités de progrès sont énormes car il parvient à accomplir toutes ses tâches avec seulement une dizaine de watts, soit moins que l’énergie nécessaire à une lampe de chevet"
lejournal.cnrs.fr/articles/les...

What is road salt and how does it impact the environment? The ice-melting substance is ubiquitous in many snowy areas. Smart salting is key to minimize its environmental impact

Chloride salts are used to make roadways safe in the wintertime, despite being very environmentally unfriendly and corrosive. Research is ongoing to find new ways to limit the corrosive properties of salts and minimize the amount needed to break the ice. cen.acs.org/environment/... #chemsky 🧪

Commercial dryers release microfibers into the air New study finds that laundromats send large amounts of synthetic and natural fibers into the environment

Washing machines are known to release microfibers into wastewater, but new research shows that clothes dryers, like those in a commercial laundry, also release large numbers of microfibers into the environment. cen.acs.org/environment/... #chemsky 🧪

Your brain is full of microplastics: are they harming you? Plastics have infiltrated every recess of the planet, including your lungs, kidneys and other sensitive organs. Scientists are scrambling to understand their effects on health.

Plastics have infiltrated every recess of the planet, including your lungs, kidneys and other sensitive organs

go.nature.com/4j1dLeY

EV driving range drops in the winter. Can new materials and methods help? From reworking electrolytes to adding heating elements, researchers are trying it all for better cold-weather batteries

Electric vehicle driving range drops by 25–40% at temperatures below 5 °C as chemical reactions in the battery become sluggish. Researchers are trying various methods to improve battery performance at extreme temperatures: cen.acs.org/energy/energ... #chemsky 🧪

Scientists collected a newly identified amoeba from California’s Lassen Volcanic National Park. It can survive at the temperature of a medium-well steak. Plus, a distant lava planet shows signs of an atmosphere: buff.ly/lTpusXX

Fromages antiques : du petit-lait archéologique Faire une archéologie des fromages peut faire sourire, et pourtant ! Étudier le fromage c’est étudier l’un des aliments principaux de l’alimentation européenne depuis environ 10.000 ans. L’entretien a...

A 16h30 sur @franceculture.fr L'Entretien archéologique parle d'une archéologie des fromages. Que sait-on des recettes et de la fabrication des fromages antiques ? Et quels goûts avaient-ils ? www.radiofrance.fr/francecultur...

Bizarre Ecosystem Discovered More Than Two Miles beneath Arctic Ocean Dynamic mounds made of methane at a depth of some 3,640 meters act like “frozen reefs” for a bizarre array of deep-sea creatures, new observations reveal

Dynamic mounds made of methane at a depth of some 3,640 meters act like “frozen reefs” for a bizarre array of deep-sea creatures, new observations reveal

Raindrops can bounce and then roll down a slope, picking up sand as they go.

The sand-covered balls transport up to 100 times more sediment downhill than drops that don’t roll, a fact that could help make more realistic computer models of soil erosion and land change. https://scim.ag/4p7ghBE

"We have to keep up the romance and the idealist notions of what it means to learn things and to be a better educated person... Take time to learn things. It's one of the best things you could do with your time." —Dr. Sean M. Carroll

A wonderful reminder from physicist and author Sean M. Carroll. 📖

How Did Ancient Humans Use The Acoustics Of Spaces Like Caves? What did a vulture-bone flute sound like inside a cave? How about singing inside a tomb? Researchers are bringing ancient sounds back to life.

Ancient cave art is beautiful to look at—and it was likely also meant to be part of a listening experience. A growing field of archeology is uncovering the role music played during the Ice and Stone Ages. 🎶

Synthesis of enantioenriched atropisomers by biocatalytic deracemization - Nature A new method for deracemization of atropisomers is described which leverages a P450 enzyme-mediated process involving bond rotation for enantioenrichment.

Nature research paper: Synthesis of enantioenriched atropisomers by biocatalytic deracemization

go.nature.com/3JTpxuD

Ces microalgues glissent sur les glaces de l'Arctique, une étonnante adaptation à l'extrême Dans les glaces de l’Arctique, les diatomées ne dorment pas : elles se déplacent en glissant dans les microcanaux grâce à un mucus propulseur. Une prouesse biologique inédite, révélant une étonnante a...

www.sciencesetavenir.fr/nature-envir...

Décryptage : SOS corail en détresse Par leur diversité et la multiplication de leurs formes et de leurs couleurs, les récifs coralliens représentent un écosystème exceptionnel… et particulièreme

La hausse des températures des océans provoque le blanchissement des récifs coralliens 🪸. Premières victimes du réchauffement climatique, ces écosystèmes vivent une « crise sans précédent ». Serge Planes écologue au @cnrs.fr fait le point. 🌊

A century of change in the California Current: upwelling system amplifies acidification - Nature Communications Boron isotopes in cold-water corals reveal that acidification in the California Current and Salish Sea has outpaced atmospheric CO2 over the industrial era, posing a threat to ecosystems of ecological...

#Boron isotopes in cold-water corals reveal that #acidification in the #California Current and Salish Sea has outpaced atmospheric #CO2 over the industrial era, posing a threat to #ecosystems of ecological, cultural and economic value.

www.nature.com/articles/s41...

Don’t overlook the plastic footprint of fireworks Letter to the Editor

Correspondence ✉️ Don’t overlook the plastic footprint of fireworks

go.nature.com/47Iy5wp

Climate change is devastating mining of minerals needed to fight it Extreme weather threatens the extraction of critical minerals required to produce clean energy.

Extreme weather threatens the extraction of critical minerals required to produce clean energy. The consequences of these disruptions will spiral across the global economy

go.nature.com/4hEbwxq

A Recyclable Cooperative Approach for Selective Lithium Recovery from Industrial‐Grade Spent Lithium‐Ion Battery Black Mass via Oxidative Delithiation and Complexation Mechanism This study presents a novel method to extract lithium selectively from spent LIBs under mild conditions. The cooperative actions of anthraquinone ligand with H2O2 generate reactive oxygen species tha...

A Recyclable Cooperative Approach for Selective Lithium Recovery from Industrial‐Grade Spent Lithium‐Ion Battery Black Mass via Oxidative Delithiation and Complexation Mechanism - Choudhary - 2025 - Angewandte Chemie International Edition - Wiley Online Library share.google/7xmS008azGnG...

A Butterfly‐Like Fluorescent Tracker for Dynamic Polymers The dynamics of reversible polymerization could be visualized using a butterfly-shaped fluorescent tracker. The emission color showed strong dependence on the microenvironmental confinement within th...

A Butterfly‐Like Fluorescent Tracker for Dynamic Polymers - Zheng - 2025 - Angewandte Chemie International Edition - Wiley Online Library onlinelibrary.wiley.com/doi/10.1002/...

Experimental determination of partial charges with electron diffraction - Nature An experimental method is used to assign partial charges based on crystal structure determination through electron diffraction, applicable to any crystalline compound.

www.nature.com/articles/s41...

The Extraordinary Benefit of Nature’s Chemistry to Health, Society, and the Economy The connection between humans and Nature’s chemistry is astonishing and built into the very fabric of our genetic code. In this Perspective, we focus on bioactive molecules from microbes, plants, and ...

pubs.acs.org/doi/10.1021/...

Quantitative imaging of lipid transport in mammalian cells - Nature Directional, non-vesicular lipid transport is responsible for fast, species-selective lipid sorting into organelle membranes.

www.nature.com/articles/s41...

From Typhoon to Eye Wall Replacement Cycle, Here’s How to Understand Hurricane Season Everything you need to know about hurricanes explained

Everything you need to know about hurricanes explained

Cells are particularly good at solving mazes, according to a 2020 Science study that demonstrates how they are able to navigate long and complicated routes through the body using self-generated chemoattractant gradients.

Learn more: https://scim.ag/45HBSZM #ScienceMagArchives