منابع مشابه
New Mineral Names
The new mineral, the iron analogue of monticellite, occurs in melilite-nephelinite Iava from Mt. Shaheru, Belgian Congo, associated with melilite, nepheline, clinopyroxene, kalsilite, gdtzenite, combeite, sodalite, magnetite, perovskite, apatite, hornblende, biotite, and an unident i f ied mineral . Analysis gave SiO2 32.77,TiO20.23, AIzOa0.26, Fe2Oa 0.66, FeO 29 34, MnO 1.65, MgO 4.95, CaO 29....
متن کاملNew Mineral Names
1Dipartimento di Scienze della Terra, Università di degli Studi di Torino, Via Valperga Caluso, 35-10125 Torino, Italy 2Dipartimento Scienze della Terra, Università degli Studi di Milano, Via Botticelli, 23-20133 Milano, Italy 3Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow 119071, Russia 4Department of Earth and Atmospheric Sciences, 1-26 Earth Sciences Building, University ...
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The secretory pathway of eucaryotic cells consists of distinct membrane-bound organelles and transport vesicles that collectively function to transport proteins to the cell surface (1). These organelles include the endoplasmic reticulum (ER), Golgi compartments, lysosomes, secretory granules, and the plasma membrane. While all proteins en route to the cell surface traverse the early organelles ...
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The radical S-adenosylmethionine (SAM) superfamily of enzymes catalyzes an amazingly diverse variety of reactions ranging from simple hydrogen abstraction to complicated multistep rearrangements and insertions. The reactions they catalyze are important for a broad range of biological functions, including cofactor and natural product biosynthesis, DNA repair, and tRNA modification. Generally con...
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ژورنال
عنوان ژورنال: Nature
سال: 1962
ISSN: 0028-0836,1476-4687
DOI: 10.1038/193408b0