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Chiral molecules can have dramatically different functional properties while sharing identical chemical formulae and almost identical structures. The molecular structure of two types of a chiral molecule—so-called enantiomers—are mirror images of each other where one cannot be superposed on the other any more than your right hand can fit front-to-back on the left. While a lot of chiral molecules are traditionally considered fixed as left- or right-handed, chiral molecules based on helices are known to be able to switch in response to changes in their environment. Read The Full Article Here

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Seattle researchers have developed a technique to quantify the changes in gene activity that occur throughout zebrafish embryos in response to specific edits to key genes. The approach makes it possible to quantify gene activity and the effect of genetic variations in millions of cells in thousands of embryos during their development. Read The Full Article Here

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Astronomers with The LHAASO Collaboration have found that last year’s GRB 221009A gamma-ray burst, subsequently nicknamed the Brightest of All Time (BOAT), carried with it 13 teraelectronvolts of energy. In their study, reported in the journal Science Advances, the group analyzed data from the LHAASO-KM2A detector located in in Sichuan, China, to learn more about the burst. Read The Full Article Here

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