Translation from English

Sunday, July 6, 2014

Nature Magazine- News and Views

World View

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Seven Days

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  • Seven days: 27 June–3 July 2014

    The week in science: Retracted GM study republished; Mars landing gear passes first test; and UK public votes for antibiotics research in Longitude Prize.

News in Focus

Features

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  • Stem cells: Hope on the line

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    A decade ago, voters in California changed the biomedical research landscape by directly funding embryonic stem-cell research. Now the organization they created needs a hit to survive.
    • Erika Check Hayden

  • Astronomy: Planets in chaos

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    The discovery of thousands of star systems wildly different from our own has demolished ideas about how planets form. Astronomers are searching for a whole new theory.
    • Ann Finkbeiner

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  • Women in science: A temporary liberation

    The First World War ushered women into laboratories and factories. In Britain, it may have won them the vote, argues Patricia Fara, but not the battle for equality.

Books and Arts

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  • Military technology: Science in the trenches

    David Edgerton applauds a study of a scientific elite whose impact spanned two world wars.
    • Review of Secret Warriors: Key Scientists, Code Breakers and Propagandists of the Great War
      Taylor Downing

  • Science of colour: Hue and eye

    Barbara Kiser revels in an immersive show revealing the scientific base coat to 700 years of European art.
    • Review of Making Colour

Correspondence

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Careers

Features

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  • Media consulting: Entertaining science

    Scientific advisers for films and television help to bring credibility to the screen — and take some tangible and intangible benefits back to the lab.
    • Paul Smaglik

Career Briefs

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naturejobs job listings and advertising features

Futures

research

Brief Communications Arising

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Articles

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Letters

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  • Normal-state nodal electronic structure in underdoped high-Tc copper oxides

    Quantum oscillation measurements in the underdoped copper oxide YBa2Cu3O6 + x reveal a nodal electronic structure from charge order, which helps to characterize the normal state out of which superconductivity emerges in the underdoped regime.

  • Giant nonlinear response from plasmonic metasurfaces coupled to intersubband transitions

    Multiple-quantum-well semiconductors can provide one of the largest known nonlinear material responses, which is, however, geometrically limited to light beams polarized perpendicular to the semiconductor layers; by coupling a plasmonic metasurface to the semiconductor heterostructure, this limitation can be lifted, opening a new path towards ultrathin planarized components with large nonlinear response.

  • Quantum control and process tomography of a semiconductor quantum dot hybrid qubit

    A simply prepared quantum bit that is a hybrid of spin and charge enables full control on the Bloch sphere with π-rotation times of less than 100 picoseconds in two orthogonal directions; the speed arises from the charge-like characteristics, and the spin-like features result in increased quantum coherence.

  • Abrupt pre-Bølling–Allerød warming and circulation changes in the deep ocean

    • Nivedita Thiagarajan,
    • Adam V. Subhas,
    • John R. Southon,
    • John M. Eiler &
    • Jess F. Adkins
    Analysis of radiocarbon and uranium-series dates and clumped isotope temperature estimates from water column profiles of fossil deep-sea corals in the North Atlantic shows that the release of heat from warm waters in the deep North Atlantic Ocean probably triggered the Bølling–Allerød warming and reinvigoration of the Atlantic meridional overturning circulation 14,700 years ago.

  • Genomic divergence in a ring species complex

    • Miguel Alcaide,
    • Elizabeth S. C. Scordato,
    • Trevor D. Price &
    • Darren E. Irwin
    Two species may be fully reproductively isolated at the point they meet, but be connected by continuous gene flow by a longer route around the back of a geographical barrier; such a ring species complex exists for the greenish warbler, and genomics shows that there have been several historical breaks in gene flow along the continuum, as well as some introgression between the end forms.

  • RLIM is dispensable for X-chromosome inactivation in the mouse embryonic epiblast

    The ubiquitin ligase RLIM is known to activate the long non-coding RNA Xist, which is crucial for X-chromosome inactivation in female mice; however, unlike imprinted X-chromosome inactivation that requires RLIM for Xist expression, evidence is now provided that during random X-chromosome inactivation Xist expression is regulated by an RLIM-independent pathway in vivo.

  • The sonic hedgehog factor GLI1 imparts drug resistance through inducible glucuronidation

    A new mechanism by which acute myeloid leukaemia patients become resistant to Ara-C and a newer treatment, ribavirin, is uncovered; these drugs can be glucuronidated and thereby inactivated by members of the UDP glucuronosyltransferase family of enzymes activated through GLI1 signalling.

  • Host-directed therapy of tuberculosis based on interleukin-1 and type I interferon crosstalk

    Active tuberculosis has been linked to excessive type I interferon induction whereas interleukin-1 may have protective effects; here it is shown that interleukin-1 enhances the production of prostaglandin E2, which helps contain the pathogen while also suppressing detrimental type I interferon.
    See also

  • Structural basis for lipopolysaccharide insertion in the bacterial outer membrane

    • Shuai Qiao,
    • Qingshan Luo,
    • Yan Zhao,
    • Xuejun Cai Zhang &
    • Yihua Huang
    Lipopolysaccharide, an essential component of the Gram-negative bacteria outer membrane, is inserted by LptD–LptE, a protein complex with a unique ‘barrel and plug’ architecture; the structure of the LptD–LptE complex of Shigella flexneri determined here shows LptD forming a 26-stranded β-barrel with LptE located inside the barrel of LptD, the first two β-strands are distorted by two proline residues, creating a potential portal in the barrel wall that might allow lateral diffusion of lipopolysaccharide into the outer membrane.
    See also
    See also

Retractions

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