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Showing papers by "TRIUMF published in 1974"


Journal ArticleDOI
TL;DR: In this article, the authors observed long-lived μ + precession in single crystal nickel at 300 and 77 K. Inhomogeneous local fields which cause rapid depolarization in polycrystalline samples are avoided.

34 citations


Journal ArticleDOI
20 Dec 1974-Nature
TL;DR: Is it just a matter of chance, as suggested in refs 2–4, that the authors' proteins are L-, or is there (was there) some asymmetrical agent on their planet that made the protein L-configuration the one upon which life is based?
Abstract: ONE of the most intriguing problems in chemical evolution is the origin of optical asymmetry in biopolymers. The easiest way to state the problem is: why are proteins made almost exclusively of L-amino acid optical isomers and natural sugars of D-optical isomers?1 That proteins must be made of only one kind of optical isomer is understandable on the basis of their need for precise three-dimensional conformations in order to perform their catalytic roles as enzymes. But, is it just a matter of chance, as suggested in refs 2–4, that our proteins are L-, or is there (was there) some asymmetrical agent on our planet that made the protein L-configuration the one upon which life is based?

18 citations


Journal ArticleDOI
D. R. Heywood1, B. Ozzard1

2 citations