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, [ ] but the chemical affinity of silicon for oxygen is high enough that he had no means to reduce the oxide and isolate the element. [ ] after an attempt to isolate silicon in , sir humphry davy proposed the name "silicium" for silicon, from the latin silex, silicis for flint, and adding the "-ium...
between the cells, where it provides skin with its youthful suppleness and moisture. unfortunately, our bodies own natural levels of hyaluronic acid decrease with age. due to the decrease in hyaluronic acid as we age, combined with other factors, the facial muscles become closer to the surface of the...
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coding evolution potential for an alternative translation references further reading external links genetics[ edit ] nearly all genes are translated using only standard amino acid building blocks. two unusual genetically-encoded amino acids are selenocysteine and pyrrolysine. pyrrolysine was discovered...