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A geometry-based approach to make viable-cell counting easy and cheap
Counting the number of viable cells in a culture remains a critical measurement in microbiology, but traditional dilution assays are time- and reagent-consuming. We developed the geometric viability assay that overcomes these limitations by leveraging microbial colony distribution in a cone — a pipette tip — to calculate viability across six orders of magnitude. This…
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Phages overcome bacterial immunity via diverse anti-defence proteins
Abstract It was recently shown that bacteria employ, apart from CRISPR-Cas and restriction systems, a considerable diversity of phage resistance systems1–4, but it is largely unknown how phages cope with this multilayered bacterial immunity. Here, we analyzed groups of closely related Bacillus phages that showed differential sensitivity to bacterial defense systems, and discovered four distinct…
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Author Correction: Structure and electromechanical coupling of a voltage-gated Na+/H+ exchanger
Correction to: Nature https://doi.org/10.1038/s41586-023-06518-2 Published online 25 October 2023 In the version of the article initially published, there was an error in the Data availability section where the Protein Data Bank and Electron Microscopy Data Bank accessions “8OTW and EMD-17185” previously read “80TW and EMD-17165”. This has now been corrected in the HTML and PDF…
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Ancient DNA uncovers past migrations in California
Nakatsuka, N. et al. Nature https://doi.org/10.1038/s41586-023-06771-5 (2023). Article Google Scholar Verdu, P. et al. PLoS Genet. 10, e1004530 (2014). Article PubMed Google Scholar Villa-Islas, V. et al. Science 380, eadd6142 (2023). Article PubMed Google Scholar Mabry, J. B., Carpenter, J. P. & Sanchez, G. in Archaeology Without Borders (eds Webster, L. D. & McBrinn, M.…
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Manufacturing of stretchable substrate with biaxial strain control for highly-efficient stretchable solar cells and displays
Abstract There has been significant research focused on the development of stretchable materials that can provide a large area with minimal material usage for use in solar cells and displays. However, most materials exhibit perpendicular shrinkage when stretched, which is particularly problematic for polymer-based substrates commonly used in stretchable devices. To address this issue, biaxial…
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JWST ends game of hide and seek with methane
NEWS AND VIEWS 22 November 2023 The space telescope has helped to determine the atmospheric composition of an exoplanet using the light spectrum of its host star. Spectral changes as the planet orbits the star reveal the long-sought presence of exoplanetary methane.
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Emissions scenarios and targets aligned to meet climate goals
Gidden, M. J. et al. Nature https://doi.org/10.1038/s41586-023-06724-y (2023). Article Google Scholar Grassi, G. et al. Nature Clim. Chang. 8, 914–920 (2018). Article Google Scholar Allen, M. R. et al. Nature 458, 1163–1166 (2009). Article PubMed Google Scholar Matthews, H. D., Gillett, N. P., Stott, P. A. & Zickfeld, K. Nature 459, 829–832 (2009). Article PubMed …
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Design of high bulk moduli high entropy alloys using machine learning
Abstract In this work, the authors have demonstrated the use of machine learning (ML) models in the prediction of bulk modulus for High Entropy Alloys (HEA). For the first time, ML has been used for optimizing the composition of HEA to achieve enhanced bulk modulus values. A total of 12 ML algorithms were trained to…
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Unraveling Paddy Soil Secrets: Surprising Contribution of Nonmicrobial Mechanisms to CO2 Emissions
Newswise — In a seminal study published recently in the journal Eco-Environment & Health, have shown that natural processes, especially reactions involving certain reactive oxygen species, play a big role in how paddy soils release CO2. This adds to our understanding of the world’s carbon balance. Researchers embarked on a journey to decode several aspects…
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Biostimulants and herbicides a tool to reduce non-commercial yield tubers and improve potato yield structure
Abstract The basis for the study was a field experiment conducted in 2012–2014 in the production fields of multi-branch Soleks company in Wojnów, the district of Siedlce in eastern Poland. The experiment was established in a split-plot arrangement as a two-factor experiment in three replications. The first factor were: three cultivars of edible potato—Bartek, Gawin,…