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Showing 1–6 of 6 results
Advanced filters: Author: Adrian Leitner Clear advanced filters

  • Thorium-229 has the extraordinarily low-energy nuclear state and therefore has potential in atomic clocks. Here, the authors measured the radiative branching fraction of the “clock state”, which is consistent with unity in crystals, and found that this state can be de-populated by X-ray beam irradiation.

    • Takahiro Hiraki
    • Koichi Okai
    • Koji Yoshimura
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-10

  • Analysing seabed imagery data spanning 5,000 km and >50,000 megafaunal specimens across the Clarion–Clipperton Zone abyssal plain in the northeast Pacific, the authors identify two distinct biogeographical provinces in which taxa that are dependent on calcium carbonate structures are restricted to depths above 4,300–4,880 m.

    • Erik Simon-Lledó
    • Diva J. Amon
    • Daniel O. B. Jones
    ResearchOpen Access
    Nature Ecology & Evolution
    Volume: 7, P: 1388-1397

  • In an inter-laboratory study, the authors compare the accuracy and performance of three optical density calibration protocols (colloidal silica, serial dilution of silica microspheres, and colony-forming unit (CFU) assay). They demonstrate that serial dilution of silica microspheres is the best of these tested protocols, allowing precise and robust calibration that is easily assessed for quality control and can also evaluate the effective linear range of an instrument.

    • Jacob Beal
    • Natalie G. Farny
    • Jiajie Zhou
    ResearchOpen Access
    Communications Biology
    Volume: 3, P: 1-29