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ScienceDaily: Earth & Climate News |
| Archaeologists discover salt workers’ residences at underwater Maya site Posted: 19 Nov 2021 02:12 PM PST Maya archaeologists have excavated salt kitchens where brine was boiled in clay pots over fires in pole and thatch buildings preserved in oxygen-free sediment below the sea floor in Belize. But where these salt workers lived has been elusive, leaving possible interpretations of daily or seasonal workers from the coast or even inland. This gap left nagging questions about the organization of production and distribution. |
| Novel artificial genomic DNA can replicate and evolve outside the cell Posted: 19 Nov 2021 12:56 PM PST Scientists successfully induced gene expression from a DNA and evolution through continuous replication extracellularly using cell-free materials alone for the first time. By adding the genes necessary for transcription and translation to the artificial genomic DNA, it could be possible to develop artificial cells that can grow autonomously, and it will be expected to produce efficient useful substances. |
| Two is better than one: Single-atom dimer electrocatalyst for green hydrogen production Posted: 19 Nov 2021 05:51 AM PST Nickel-cobalt metal dimer on nitrogen-doped carbon can catalyze electrolysis under both acidic and basic conditions. |
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