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Direct-bandgap emission from hexagonal Ge and SiGe alloys

mercredi 8 avril 2020 par Elham M. T. Fadaly, Alain Dijkstra, Jens Renè Suckert, Dorian Ziss, Marvin A. J. van Tilburg, Chenyang Mao, Yizhen Ren, Victor T. van Lange, Ksenia Korzun, Sebastian Kölling, Marcel A. Verheijen, David Busse, Claudia Rödl, Jürgen Furthmüller, Friedhelm Bechstedt, Julian Stangl, Jonathan J. Finley, Silvana Botti, Jos E. M. Haverkort, Erik P. A. M. Bakkers

Nature, Published online: 08 April 2020; doi:10.1038/s41586-020-2150-yA hexagonal (rather than cubic) alloy of silicon and germanium that has a direct (rather than indirect) bandgap emits light efficiently across a range of wavelengths, enabling electronic and optoelectronic functionalities to (...)

Nature

Landscape and function of multiple mutations within individual oncogenes

mercredi 8 avril 2020 par Yuki Saito, Junji Koya, Mitsugu Araki, Yasunori Kogure, Sumito Shingaki, Mariko Tabata, Marni B. McClure, Kota Yoshifuji, Shigeyuki Matsumoto, Yuta Isaka, Hiroko Tanaka, Takanori Kanai, Satoru Miyano, Yuichi Shiraishi, Yasushi Okuno, Keisuke Kataoka

Nature, Published online: 08 April 2020; doi:10.1038/s41586-020-2175-2Analysis of genomic data from more than 60,000 cancer samples uncovers frequent multiple driver mutations in individual oncogenes, which confer enhanced oncogenicity in (...)

Nature

Securin-independent regulation of separase by checkpoint-induced shugoshin–MAD2

mercredi 8 avril 2020 par Susanne Hellmuth, Laura Gómez-H, Alberto M. Pendás, Olaf Stemmann

Nature, Published online: 08 April 2020; doi:10.1038/s41586-020-2182-3Shugoshin and MAD2 regulate separase-mediated chromosome separation during mitosis, in parallel to a previously identified mechanism involving the anaphase inhibitor (...)

Nature

Early Holocene crop cultivation and landscape modification in Amazonia

mercredi 8 avril 2020 par Umberto Lombardo, José Iriarte, Lautaro Hilbert, Javier Ruiz-Pérez, José M. Capriles, Heinz Veit

Nature, Published online: 08 April 2020; doi:10.1038/s41586-020-2162-7Archaeological evidence that anthropic landscape changes and crop cultivation in southwestern Amazonia began about 10,000–11,000 years ago confirms that the region is a centre of early plant (...)

Nature

When water goes down the wrong way, these neurons come to the rescue

mercredi 8 avril 2020

Nature, Published online: 08 April 2020; doi:10.1038/d41586-020-01046-9A squad of sensory cells in the throat prompts a reflex to keep the airways clear.

Nature

The pace of biodiversity change in a warming climate

mercredi 8 avril 2020 par Jennifer M. Sunday

Nature, Published online: 08 April 2020; doi:10.1038/d41586-020-00975-9The timing of disruptions to biodiversity associated with global warming is a key, but little-explored, dimension of change. Will losses in biodiversity occur all at once, or be spread out over (...)

Nature

An engineered PET depolymerase to break down and recycle plastic bottles

mercredi 8 avril 2020 par V. Tournier, C. M. Topham, A. Gilles, B. David, C. Folgoas, E. Moya-Leclair, E. Kamionka, M.-L. Desrousseaux, H. Texier, S. Gavalda, M. Cot, E. Guémard, M. Dalibey, J. Nomme, G. Cioci, S. Barbe, M. Chateau, I. André, S. Duquesne, A. Marty

Nature, Published online: 08 April 2020; doi:10.1038/s41586-020-2149-4Computer-aided engineering produces improvements to an enzyme that breaks down poly(ethylene terephthalate) (PET) into its constituent monomers, which are used to synthesize PET of near-petrochemical grade that can be further (...)

Nature

A general carbonyl alkylative amination for tertiary amine synthesis

mercredi 8 avril 2020 par Roopender Kumar, Nils J. Flodén, William G. Whitehurst, Matthew J. Gaunt

Nature, Published online: 08 April 2020; doi:10.1038/s41586-020-2213-0A general carbonyl alkylative amination for tertiary amine synthesis

Nature

AIM2 inflammasome surveillance of DNA damage shapes neurodevelopment

mercredi 8 avril 2020 par Catherine R. Lammert, Elizabeth L. Frost, Calli E. Bellinger, Ashley C. Bolte, Celia A. McKee, Mariah E. Hurt, Matt J. Paysour, Hannah E. Ennerfelt, John R. Lukens

Nature, Published online: 08 April 2020; doi:10.1038/s41586-020-2174-3The sensing of DNA damage by the AIM2 inflammasome promotes the death of central nervous system cells and is required for normal brain development.

Nature

A neural circuit mechanism for mechanosensory feedback control of ingestion

mercredi 8 avril 2020 par Dong-Yoon Kim, Gyuryang Heo, Minyoo Kim, Hyunseo Kim, Ju Ae Jin, Hyun-Kyung Kim, Sieun Jung, Myungmo An, Benjamin H. Ahn, Jong Hwi Park, Han-Eol Park, Myungsun Lee, Jung Weon Lee, Gary J. Schwartz, Sung-Yon Kim

Nature, Published online: 08 April 2020; doi:10.1038/s41586-020-2167-2A population of neurons in the parabrachial nucleus that expresses prodynorphin monitors ingestion using mechanosensory signals from the upper digestive tract, and mediates negative feedback control of intake when the (...)

Nature