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Frontiers | Iron Redistribution Upon Thermokarst Processes in the Yedoma Domain
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Silicon with a two-dimensional structure | EurekAlert! Science News
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Closing the gap on the missing lithium
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IMAGE: Supergenes govern colony social form in Solenopsis invicta (top left; SB/Sb alleles), heterostyly in Primula veris (top right; S/s alleles), and polymorphic female-limited mimicry in Papilio polytes (bottom right; H/h. view more
Credit: Image courtesy of Tanja Slotte. Photo Credits: Alex Wild (Solenopsis), Tanja Slotte (Primula), and Krushnamegh Kunte (Papilio).
While the term supergene may bring to mind the genetic hocus-pocus of Peter Parker s transformation into Spiderman, supergenes are actually fairly common phenomena in the realm of biology. A supergene refers to a genomic region containing multiple genes or genetic elements that are tightly linked, allowing genetic variants across the region to be co-inherited. Supergenes may arise when there is a clear benefit to inheriting specific combinations of biological traits together. Perhaps the most well-known examples of supergenes are sex chromosomes, which allow traits that are beneficial to the re
Platinum-free biocatalyst for fuel cells and water electrolysisEnzyme system for the hydrogen industry An enzyme could make a dream come true for the energy industry: It can efficiently produce hydrogen using electricity and can also generate electricity from hydrogen. The enzyme is protected by embedding it in a polymer. An international research team with significant participation of scientists from Technical University of Munich (TUM) has presented the system in the renowned science journal Nature Catalysis.
Fuel cells turn hydrogen into electricity, while electrolysers use electricity to split water to produce hydrogen. Both need the rare and thus expensive precious metal platinum as a catalyst. Nature has created a different solution: Enzymes, referred to as hydrogenases. They catalyze the conversion of hydrogen very quickly and almost without energy loss.