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Additional resources for Nature (Vol. 436, No. 7054, 25 August 2005)
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A light-driven catalyst provides good results, and the technique could be generally applicable. Chirality — the non-identity of a molecule with its mirror image — is ubiquitous. It occurs not only in biomolecules (amino acids, sugars, DNA and RNA are examples of chiral molecules), but also in man-made chemicals, materials and drugs. Catalytic asymmetric synthesis — the use of chiral catalysts to transfer and amplify chirality in chemical reactions — has therefore become a central topic in molecular science1.
4. Vaillancourt, F. , Yin, J. & Walsh, C. T. Proc. Natl Acad. Sci. USA 102, 10111–10116 (2005). EARTH SCIENCE Helium not in store William M. White The ratio of helium isotopes in some oceanic volcanoes seemed to demand a reservoir of virgin primordial gas in the Earth’s mantle. In fact, that might not be necessary — a relief for other geophysical models. 5 billion years of its existence, Earth has been continually losing helium through the degassing of rocks from its interior as they melt during volcanic processes.
Richards and Cavalier-Smith used the highly evolutionarily conserved sequence of the core myosin motor domain to search for myosin genes in genomes from five major taxonomic groups: the amoebae; the opisthokonts (which include fungi and animals); the excavates (which include those protozoans with flagella — whip-like 1097 NEWS & VIEWS 50 & 100 YEARS AGO 50 YEARS AGO 1098 There is something very depressing about contemporary biological journals. Paper after paper records observations or experiments, analyses them cautiously, and in a timid and tentative way compares them with previous observations and experiments on the same theme.
Nature (Vol. 436, No. 7054, 25 August 2005)
by Thomas
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