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Bring on the bodyNET

mercredi 20 septembre 2017 par Bryant Chu, William Burnett, Jong Won Chung, Zhenan Bao
Stretchable sensors, circuits and batteries are about to change our relationships with electronics and each other, explain Bryant Chu and colleagues.

Relativity: Final ascent of physics

mercredi 20 septembre 2017 par Robert P. Crease
Robert P. Crease applauds the third volume of a thrilling guide to a special pursuit.

Le méthane arctique, fausse menace climatique?

mercredi 20 septembre 2017 par François Savatier — Climatologie
L’examen des émissions de méthane pendant le dernier épisode de réchauffement climatique il y a 11 600 ans est plutôt rassurant : il y a eu une augmentation, mais pas une explosion de ce gaz à effet de serre dans l'atmosphère.

Erratum: Genome-scale activation screen identifies a lncRNA locus regulating a gene neighbourhood

mercredi 20 septembre 2017 par Julia Joung, Jesse M. Engreitz, Silvana Konermann, Omar O. Abudayyeh, Vanessa K. Verdine, Francois Aguet, Jonathan S. Gootenberg, Neville E. Sanjana, Jason B. Wright, Charles P. Fulco, Yuen-Yi Tseng, Charles H. Yoon, Jesse S. Boehm, Eric S. Lander, Feng Zhang
Nature548, 343–346 (2017); doi:10.1038/nature23451Owing to an error during the production process, this Letter was not published online on 9 August 2017, as originally stated, and was instead first published online on 11 August 2017. The (...)

Stereodivergent synthesis with a programmable molecular machine

mercredi 20 septembre 2017 par Salma Kassem, Alan T. L. Lee, David A. Leigh, Vanesa Marcos, Leoni I. Palmer, Simone Pisano
It has been convincingly argued that molecular machines that manipulate individual atoms, or highly reactive clusters of atoms, with Ångström precision are unlikely to be realized. However, biological molecular machines routinely position rather less reactive substrates in order to direct (...)

A binary main-belt comet

mercredi 20 septembre 2017 par Jessica Agarwal, David Jewitt, Max Mutchler, Harold Weaver, Stephen Larson
Asteroids are primitive Solar System bodies that evolve both collisionally and through disruptions arising from rapid rotation. These processes can lead to the formation of binary asteroids and to the release of dust, both directly and, in some cases, through uncovering frozen volatiles. In a (...)

Tunable interacting composite fermion phases in a half-filled bilayer-graphene Landau level

mercredi 20 septembre 2017 par A. A. Zibrov, C. Kometter, H. Zhou, E. M. Spanton, T. Taniguchi, K. Watanabe, M. P. Zaletel, A. F. Young
Non-Abelian anyons are a type of quasiparticle with the potential to encode quantum information in topological qubits protected from decoherence. Experimental systems that are predicted to harbour non-Abelian anyons include p-wave superfluids, superconducting systems with strong spin–orbit (...)

3D printing of high-strength aluminium alloys

mercredi 20 septembre 2017 par John H. Martin, Brennan D. Yahata, Jacob M. Hundley, Justin A. Mayer, Tobias A. Schaedler, Tresa M. Pollock
Metal-based additive manufacturing, or three-dimensional (3D) printing, is a potentially disruptive technology across multiple industries, including the aerospace, biomedical and automotive industries. Building up metal components layer by layer increases design freedom and manufacturing (...)

Metallurgy: No more tears for metal 3D printing

mercredi 20 septembre 2017 par Iain Todd
3D printing could revolutionize manufacturing processes involving metals, but few industrially useful alloys are compatible with the technique. A method has been developed that might open up the 3D printing of all metals. See Letter (...)

Materials science: Long-lived electrodes for plastic batteries

mercredi 20 septembre 2017 par Byungju Lee, Kisuk Kang
Organic materials are potential substitutes for the costly transition-metal oxides used in battery electrodes, but their stability is often poor. A polymer design that uses intermolecular interactions solves this problem.

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