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Pancreatic islets communicate with lymphoid tissues via exocytosis of insulin peptides

mercredi 18 juillet 2018 par Xiaoxiao Wan, Bernd H. Zinselmeyer, Pavel N. Zakharov, Anthony N. Vomund, Ruth Taniguchi, Laura Santambrogio, Mark S. Anderson, Cheryl F. Lichti, Emil R. Unanue
Pancreatic islets communicate with lymphoid tissues via exocytosis of insulin peptides Pancreatic islets communicate with lymphoid tissues via exocytosis of insulin peptides, Published online: 18 July 2018; doi:10.1038/s41586-018-0341-6A sensitive T cell tracking assay reveals immunogenic (...)

Electron ptychography of 2D materials to deep sub-ångström resolution

mercredi 18 juillet 2018 par Yi Jiang, Zhen Chen, Yimo Han, Pratiti Deb, Hui Gao, Saien Xie, Prafull Purohit, Mark W. Tate, Jiwoong Park, Sol M. Gruner, Veit Elser, David A. Muller
Electron ptychography of 2D materials to deep sub-ångström resolution Electron ptychography of 2D materials to deep sub-ångström resolution, Published online: 18 July 2018; doi:10.1038/s41586-018-0298-5Combining an electron microscope pixel-array detector that collects the entire distribution of (...)

Leukaemia follows a blood-vessel track to enter the nervous system

mercredi 18 juillet 2018 par Frank Winkler
Leukaemia follows a blood-vessel track to enter the nervous system Leukaemia follows a blood-vessel track to enter the nervous system, Published online: 18 July 2018; doi:10.1038/d41586-018-05693-xCertain cancers are prone to invade the nervous system, which leads to poorer prognosis. A study (...)

An interior-design guide for microscopic spaces

mercredi 18 juillet 2018
An interior-design guide for microscopic spaces An interior-design guide for microscopic spaces, Published online: 18 July 2018; doi:10.1038/d41586-018-05740-7Detailed polymer structures generated in water droplets can be turned into carbon (...)

The outer membrane is an essential load-bearing element in Gram-negative bacteria

mercredi 18 juillet 2018 par Enrique R. Rojas, Gabriel Billings, Pascal D. Odermatt, George K. Auer, Lillian Zhu, Amanda Miguel, Fred Chang, Douglas B. Weibel, Julie A. Theriot, Kerwyn Casey Huang
The outer membrane is an essential load-bearing element in Gram-negative bacteria The outer membrane is an essential load-bearing element in Gram-negative bacteria, Published online: 18 July 2018; doi:10.1038/s41586-018-0344-3The outer membrane of Gram-negative bacteria is shown to be at least (...)

Sluggish Atlantic circulation could cause global temperatures to surge

mercredi 18 juillet 2018 par Gerard D. McCarthy, Peter W. Thorne
Sluggish Atlantic circulation could cause global temperatures to surge Sluggish Atlantic circulation could cause global temperatures to surge, Published online: 18 July 2018; doi:10.1038/d41586-018-05712-xThe circulation system of the North Atlantic Ocean has weakened and is predicted to weaken (...)

Triple oxygen isotope evidence for limited mid-Proterozoic primary productivity

mercredi 18 juillet 2018 par Peter W. Crockford, Justin A. Hayles, Huiming Bao, Noah J. Planavsky, Andrey Bekker, Philip W. Fralick, Galen P. Halverson, Thi Hao Bui, Yongbo Peng, Boswell A. Wing
Triple oxygen isotope evidence for limited mid-Proterozoic primary productivity Triple oxygen isotope evidence for limited mid-Proterozoic primary productivity, Published online: 18 July 2018; doi:10.1038/s41586-018-0349-yTriple oxygen isotope measurements of 1.4-billion-year-old sedimentary (...)

A mini-snake in amber is the oldest — and youngest — ever found

mercredi 18 juillet 2018
A mini-snake in amber is the oldest — and youngest — ever found A mini-snake in amber is the oldest — and youngest — ever found, Published online: 18 July 2018; doi:10.1038/d41586-018-05742-5Specimen dating to 99 million years ago is the first known fossil of a baby (...)

Etat des nappes d'eau souterraine au 1er juillet 2018

mardi 17 juillet 2018 — Vie et Terre
Plus de la moitié des nappes phréatiques (58%) affichent un niveau modérément haut à très haut et un cinquième d'entre elles (20%) affichent un niveau modérément bas à très bas La carte...

Moths Evade Bats with Slight of Wing

mardi 17 juillet 2018 par Christopher Intagliata — The Sciences, Biology, Evolution
Some moth species have evolved long wing tails that flutter and twist as the moth flies, which distract hungry bats. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

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