Sur le Web

Nouveautés sur le Web

Articles les plus récents

Do octopus brains work like humans’ — or is there another way to be smart?

mercredi 29 avril 2026 par Liam Drew

Nature, Published online: 29 April 2026; doi:10.1038/d41586-026-01302-4Just like vertebrates, cephalopods — such as octopuses and squid — have elaborate brains. Neuroscientists are flocking to them for insights into how intelligence (...)

Nature

Machine learning improves health-care access in Sierra Leone

mercredi 29 avril 2026 par Ziad Obermeyer

Nature, Published online: 29 April 2026; doi:10.1038/d41586-026-01152-0A machine-learning tool that allocates scarce medicines to meet demand and reduce waste is providing millions with better health care as it rolls out nationwide.

Nature

Synthetic blood clots snap cells together to staunch bleeding — fast

mercredi 29 avril 2026 par Heidi Ledford

Nature, Published online: 29 April 2026; doi:10.1038/d41586-026-01397-9‘Click clotting’ technology seals serious wounds in rats in seconds.

Nature

Roman Empire’s collapse created a genetic melting pot in Europe

mercredi 29 avril 2026 par Ewen Callaway

Nature, Published online: 29 April 2026; doi:10.1038/d41586-026-01395-xGenome evidence points to a slow blending of peoples — not a violent tide of invaders — that laid the foundations of modern Europe’s diverse ancestry.

Nature

Daily briefing: Octopuses’ strange brains might teach us what intelligence really is

mercredi 29 avril 2026 par Flora Graham

Nature, Published online: 29 April 2026; doi:10.1038/d41586-026-01431-wCephalopods are very smart, but have brains that evolved very differently than vertebrates. Plus, detailed maps of olfactory receptors in mice transform what we know about (...)

Nature

Engineered blood clots stop bleeding in seconds

mercredi 29 avril 2026 par Malcolm Xing, Gaoxing Luo

Nature, Published online: 29 April 2026; doi:10.1038/d41586-026-01150-2Red blood cells have been modified to form strong clots that halt any bleeding almost instantly and then promote tissue regeneration.

Nature

Submicrometre sampling of living cells by macrophages

mercredi 29 avril 2026 par Amy C. Fan, Rukman R. Thota, Nina Serwas, Vivasvan S. Vykunta, Kyle Marchuk, Megan K. Ruhland, Lauren Liu, Grace Johnson, Austin Edwards, Matthew F. Krummel

Nature, Published online: 29 April 2026; doi:10.1038/s41586-026-10435-5Macrophages can sample antigens from living cells through a trogocytosis-like mechanism that routes ingested material away from degradation, a finding that delineates a previously unknown pathway for antigen presentation to (...)

Nature

Racial diversity in higher education is associated with higher student salaries

mercredi 29 avril 2026 par Debanjan Mitra, Peter N. Golder, Mariya Topchy

Nature, Published online: 29 April 2026; doi:10.1038/s41586-026-10425-7A longitudinal study shows that racial diversity in higher education is associated with higher student salaries at graduation, indicating that policies to increase or leverage racial diversity enhance human capital and (...)

Nature

Postprandial lipid metabolism durably enhances T cell immunity

mercredi 29 avril 2026 par Alok Kumar, Dayana B. Rivadeneira, Isha Mehta, Bingxian Xie, Rachel Cumberland, Supriya K. Joshi, Jitendra S. Kanshana, William G. Gunn, Victoria Dean, Angelina Parise, Kristin Morder, Erica S. Myers, Steven J. Mullett, Richard T. Cattley, Stacy L. Gelhaus, Abigail E. Overacre-Delgoffe, Jishnu Das, William F. Hawse, Alison B. Kohan, Greg M. Delgoffe

Nature, Published online: 29 April 2026; doi:10.1038/s41586-026-10432-8Experiments in mice and humans show enhancement of T cell function following fasting and refeeding, caused by persistent immunometabolic reprogramming, with potential implications for nutritional interventions and adoptive (...)

Nature

Intrinsic polar vortex crystals in A-site layer-ordered perovskites

mercredi 29 avril 2026 par Chao Xu, Nengneng Luo, Junyi Yue, Changsheng Chen, Tieyuan Bian, Chi Zhang, Xiangli Che, Jianwen Liang, Molly Meng-Jung Li, Jun Yin, Zhen Chen, Shujun Zhang, Xiaoqing Pan, Ye Zhu

Nature, Published online: 29 April 2026; doi:10.1038/s41586-026-10470-2A two-dimensional polar hedgehog lattice spontaneously forms in layer-ordered perovskites, showing stable topological ferroelectric states without external constraints and enabling new pathways for functional material (...)

Nature