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    • A technique called surface-enhanced Raman spectroscopy can detect tiny quantities of compounds in solution, but has been difficult to use for quantitative analysis. A digital approach involving nanoparticles suggests a way forward.

      • Peter J. Vikesland
      News & Views
    • How does the human brain temporarily store information without losing track of it? Neuroscientists have discovered that neurons in the frontal and temporal lobes work together to hold information in working memory.

      • Ziv Williams
      News & Views
    • Bacteria make protein toxins to compete with other bacteria in microbial communities. A study of a common soil bacterium has revealed a previously unknown type of antibacterial toxin that forms a striking umbrella-like structure.

      • Sarah J. Coulthurst
      News & Views
    • Mating between different species has often been considered an evolutionary dead end, but a study in longwing butterflies suggests that such hybridization could underlie the origins of a new species.

      • Megan E. Frayer
      • Jenn M. Coughlan
      News & Views
    • The hinge enables insects to control their wing movements, but how it works is hard to study. Multidisciplinary research, using imaging and machine-learning methods, now sheds light on the mechanism that underlies its operation.

      • Tanvi Deora
      News & Views

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  • A screen utilizing an environmental DNA library in Escherichia coli is used to identify Brig1, a previously unknown anti-phage defence system with homologues across distinct clades of bacteria.

    • Amer A. Hossain
    • Ying Z. Pigli
    • Luciano A. Marraffini
    Article Open Access
  • Genomic studies of Heliconius butterflies provide evidence that Heliconius elevatus is a hybrid species, and that its speciation was driven by introgression of traits from Heliconius melpomene into the other parent, an ancestor of Heliconius pardalinus.

    • Neil Rosser
    • Fernando Seixas
    • Kanchon K. Dasmahapatra
    Article Open Access
  • Methane emission from a very cool brown dwarf, perhaps arising from an aurora, has been detected in James Webb Space Telescope observations.

    • Jacqueline K. Faherty
    • Ben Burningham
    • Niall Whiteford
    Article Open Access
  • We propose a model for a sequential, multistep activation mechanism of metabotropic glutamate receptor subtype 5, including a series of structures in lipid nanodiscs, from inactive to fully active, with agonist-bound intermediate states.

    • Kaavya Krishna Kumar
    • Haoqing Wang
    • Brian K. Kobilka
    Article
  • Analysis of projected sub-national damages from temperature and precipitation show an income reduction of 19% of the world economy within the next 26 years independent of future emission choices.

    • Maximilian Kotz
    • Anders Levermann
    • Leonie Wenz
    Article Open Access

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