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Collective intercellular communication through ultra-fast hydrodynamic trigger waves

mercredi 10 juillet 2019 par Arnold J. T. M. Mathijssen, Joshua Culver, M. Saad Bhamla, Manu Prakash
Nature, Published online: 10 July 2019; doi:10.1038/s41586-019-1387-9Ultra-fast hydrodynamic communication between cells emerges in colonies of Spirostomum ambiguum through the generation of long-ranged vortex flows that are sensed by neighbouring cells, leading to propagating trigger waves (...)

These young scientists will shape the next 50 years of Moon research

mercredi 10 juillet 2019 par Alexandra Witze
Nature, Published online: 10 July 2019; doi:10.1038/d41586-019-02086-6Half a century after Apollo, Nature profiles five researchers who are shaking up lunar exploration.

Cancer, climate, plastics: why ‘earthshots’ are harder than moonshots

mercredi 10 juillet 2019
Nature, Published online: 10 July 2019; doi:10.1038/d41586-019-02093-7Apollo was a triumph, but 50 years on, moonshots to solve more-complex global challenges face a different set of hurdles.

An early dispersal of modern humans from Africa to Greece

mercredi 10 juillet 2019 par Eric Delson
Nature, Published online: 10 July 2019; doi:10.1038/d41586-019-02075-9Analysis of two fossils from a Greek cave has shed light on early hominins in Eurasia. One fossil is the earliest known specimen of Homo sapiens found outside Africa; the other is a Neanderthal who lived 40,000 years (...)

Faulty machines

mercredi 10 juillet 2019 par Gretchen Tessmer
Nature, Published online: 10 July 2019; doi:10.1038/d41586-019-02092-8A logical position.

First Moon landing was nearly a US–Soviet mission

mercredi 10 juillet 2019 par Roger D. Launius
Nature, Published online: 10 July 2019; doi:10.1038/d41586-019-02088-4As today’s tensions mount, it is salutary to recall that cooperation was on the table during the cold war, writes Roger D. Launius.

Whale hunt, climate lawsuits and chaos-theory pioneer

mercredi 10 juillet 2019
Nature, Published online: 10 July 2019; doi:10.1038/d41586-019-02085-7The week in science: 5–11 July 2019.

Cell communication in the blink of an eye

mercredi 10 juillet 2019 par Pavel Tomancak
Nature, Published online: 10 July 2019; doi:10.1038/d41586-019-02069-7The bodies of unicellular organisms called protists can contract extremely fast. Analysis reveals that the flow of surrounding fluid during contraction triggers a chain reaction of contraction of neighbouring (...)

Controlling protein assembly on inorganic crystals through designed protein interfaces

mercredi 10 juillet 2019 par Harley Pyles, Shuai Zhang, James J. De Yoreo, David Baker
Nature, Published online: 10 July 2019; doi:10.1038/s41586-019-1361-6The controlled design of arrays of carboxylates geometrically matched to a potassium ion sublattice leads to the formation of extended self-assembled protein structures on (...)

Japanese spacecraft probes asteroid’s guts for first time

mercredi 10 juillet 2019 par Davide Castelvecchi
Nature, Published online: 10 July 2019; doi:10.1038/d41586-019-02136-zHayabusa2 touched down on Ryugu to collect material from beneath the surface.

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