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Podcast: A rapid, multi-material 3D printer, and a bacterium’s role in alcoholic hepatitis

mercredi 13 novembre 2019

Nature, Published online: 13 November 2019; doi:10.1038/d41586-019-03507-2Hear this week’s science news, with Nick Howe and Shamini Bundell.

Nature

Marine Proteobacteria metabolize glycolate via the β-hydroxyaspartate cycle

mercredi 13 novembre 2019 par Lennart Schada von Borzyskowski, Francesca Severi, Karen Krüger, Lucas Hermann, Alexandre Gilardet, Felix Sippel, Bianca Pommerenke, Peter Claus, Niña Socorro Cortina, Timo Glatter, Stefan Zauner, Jan Zarzycki, Bernhard M. Fuchs, Erhard Bremer, Uwe G. Maier, Rudolf I. Amann, Tobias J. Erb

Nature, Published online: 13 November 2019; doi:10.1038/s41586-019-1748-4Marine Proteobacteria use the β-hydroxyaspartate cycle to assimilate glycolate, which is secreted by algae on a petagram scale, providing evidence of a previously undescribed trophic interaction between autotrophic (...)

Nature

PhDs: the tortuous truth

mercredi 13 novembre 2019 par Chris Woolston

Nature, Published online: 13 November 2019; doi:10.1038/d41586-019-03459-7Nature’s survey of more than 6,000 graduate students reveals the turbulent nature of doctoral research.

Nature

Physical oceanography

mercredi 13 novembre 2019 par Richard Hodson

Nature, Published online: 13 November 2019; doi:10.1038/d41586-019-03463-xAs the seas rise, our understanding of the processes within them must deepen.

Nature

Author Correction: Maternal vitamin C regulates reprogramming of DNA methylation and germline development

mercredi 13 novembre 2019 par Stephanie P. DiTroia, Michelle Percharde, Marie-Justine Guerquin, Estelle Wall, Evelyne Collignon, Kevin T. Ebata, Kathryn Mesh, Swetha Mahesula, Michalis Agathocleous, Diana J. Laird, Gabriel Livera, Miguel Ramalho-Santos

Nature, Published online: 13 November 2019; doi:10.1038/s41586-019-1699-9Author Correction: Maternal vitamin C regulates reprogramming of DNA methylation and germline development

Nature

Thermoelectric performance of a metastable thin-film Heusler alloy

mercredi 13 novembre 2019 par B. Hinterleitner, I. Knapp, M. Poneder, Yongpeng Shi, H. Müller, G. Eguchi, C. Eisenmenger-Sittner, M. Stöger-Pollach, Y. Kakefuda, N. Kawamoto, Q. Guo, T. Baba, T. Mori, Sami Ullah, Xing-Qiu Chen, E. Bauer

Nature, Published online: 13 November 2019; doi:10.1038/s41586-019-1751-9A high intrinsic thermoelectric figure of merit is found for a metastable thin-film Fe2V0.8W0.2Al Heusler alloy.

Nature

Enamel proteome shows that Gigantopithecus was an early diverging pongine

mercredi 13 novembre 2019 par Frido Welker, Jazmín Ramos-Madrigal, Martin Kuhlwilm, Wei Liao, Petra Gutenbrunner, Marc de Manuel, Diana Samodova, Meaghan Mackie, Morten E. Allentoft, Anne-Marie Bacon, Matthew J. Collins, Jürgen Cox, Carles Lalueza-Fox, Jesper V. Olsen, Fabrice Demeter, Wei Wang, Tomas Marques-Bonet, Enrico Cappellini

Nature, Published online: 13 November 2019; doi:10.1038/s41586-019-1728-8The enamel proteome from a 1.9-million-year-old Gigantopithecus tooth shows that the Gigantopithecus and Pongo (orangutan) lineages diverged 12–10 million years (...)

Nature

Daily briefing: Unexpected discovery in basic mathematics

mercredi 13 novembre 2019 par Flora Graham

Nature, Published online: 13 November 2019; doi:10.1038/d41586-019-03520-5So “short and simple, it should have been in textbooks already”. Plus: Hayabusa2 is heading home with an asteroid sample, and engineers unveil a sound-powered 3D (...)

Nature

Equation d'état et distribution de défauts de densité lors de la formation d'un quasi-condensat d'excitons

mardi 12 novembre 2019 — Physique

Les excitons dipolaires dans l'arséniure de gallium (GaAs) constituent un système modèle pour étudier les états collectifs dans un semiconducteur à 2 dimensions. En effet, ces excitons à fort...

Techno-sciences

Une nouvelle approche pour des batteries rechargeables haute énergie au calcium

mardi 12 novembre 2019 — Physique

Si on veut obtenir des batteries au calcium (Ca) rechargeables à température ambiante, la solution pourrait venir d'un nouvel électrolyte. Des chercheurs financés par l'UE expliquent comment...

Techno-sciences