Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Strontium-Strontium Hydride Phase System1D. T. Peterson and R. P. ColburnCite this: J. Phys. Chem. 1966, 70, 2, 468–471Publication Date (Print):February 1, 1966Publication History Published online1 May 2002Published inissue 1 February 1966https://pubs.acs.org/doi/10.1021…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA Study of the Thermal Decomposition of Some Complex Oxalates of Iron(III) Using the Mössbauer EffectP. K. Gallagher and C. R. KurkjianCite this: Inorg. Chem. 1966, 5, 2, 214–219Publication Date (Print):February 1, 1966Publication History Published online1 May 2002Published…
Ensign, J. C. (University of Wisconsin, Madison), and R. S. Wolfe. Characterization of a small proteolytic enzyme which lyses bacterial cell walls. J. Bacteriol. 91:524-534. 1966.-An enzyme isolated from a myxobacter possesses both cell-wall lytic and proteolytic activity. The enzyme has been purified over 600-fold an…
Abstract T he objective of this paper is to present flow sheets for a system of quantitative minera-logical analysis of clays of soils and sediments and to show representative results. Selective dissolution analysis by the Na 2 S 2 O 7 -HCl-NaOH procedure yields the quartz and feldspar contents (0 to 63%) and differen…
A search was made for evidence of metastable phase separation in binary alkali metal oxide‐silica glasses which had been subjected to the usual glassmaking procedures of melting, relatively fast cooling, and annealing. Electron microscopy and electrical properties measurements were the principal tools of investigation…
Abstract The partial purification and resolution of the soluble lactose synthetase into two protein components, A and B, which individually do not exhibit any catalytic activity is discussed.
Abstract Liquid carboxyl‐terminated polybutadiene (CTPB) on aging in air increased in viscosity and molecular weight and eventually gelled. Simultaneously, the acid content decreased without formation of anhydride, the changes being a function of the hydrocarbon portion of the molecule. Cured stocks of CTPB underwent…
Abstract Approximations in the Avrami treatment of impingement which arise when the growing crystalline bodies are rods or disks are discussed, with particular reference to the single‐crystal model. This model, previously fitted to the isolated primary crystallization of polymethylene, is extended to discuss the growt…
Measurements have been carried out of the electrical conductivity of single crystals of calcium oxide from 300 to 1400°K, and of strontium oxide from 600 to 1050°K. It was measured at 1·59 kc/s for both oxides, and also with d.c. for calcium oxide. For calcium oxide the conductivity was 1 × 10 -8 ω -1 cm -1 at 1050°K…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Crystal and Molecular Structure of Tetragonal Ruthenium DioxideF. A. Cotton and J. T. MagueCite this: Inorg. Chem. 1966, 5, 2, 317–318Publication Date (Print):February 1, 1966Publication History Published online1 May 2002Published inissue 1 February 1966https://pubs.acs.…
The theoretical mechanical behavior of a plain knitted fabric subjected to biaxial stresses is derived. An approximate mathematical model of the fabric structure was established from which the stress vs fabric-geometry and stress vs strain relationships were determined. The work was done by considering only the proper…
A method is described employing 14 CO 2 uptake by the marine centric diatom Cyclotella nana (clone 13-1) for the bioassay of vitamin B 12 in seawater. Seawater samples were filter sterilized, supplemented with sterile medium constituents, and diluted with a similarly supplemented, charcoal-treated filtered seawater. S…
Abstract Foam separation of microorganisms has been investigated with varying success by many workers, usually at high rates of gas flow. Microflotation was developed to overcome some of the disadvantages inherent in these high gas‐flow‐rate processes and is introduced in this paper as a new technique for the foam sep…
Abstract T he basic outlines of most of the hydrous layer silicate structures were determined during the 1930’s. Present escalating interest in obtaining additional detail is indicated by (a) publication of over twenty structural refinements (2-D or 3-D) during 1954-64, (b) publication of at least nine structures in 1…
It was discovered by the authors that Ti is easily attacked by stress corrosion cracking in methanol containing HCl. This is a report on a study to assess quantitatively stress corrosion cracking of Ti in alcohol solutions. At the same time stress corrosion cracking of Zr was studied because of its similarity in chemi…
Numerous rare-earth element analogues have been found for well-established rare-earth minerals. In order to prevent a multitude of impractical names, a system of nomenclature is proposed. A group name, e.g., monazite, is suggested for rare-earth minerals for which the rare-earth element distribution has not been deter…
Mössbauer spectra of FeCr 2 O 4 and FeV 2 O 4 , which undergo the cubic-to-tetragonal transition at 135°K and 140°K respectively, have been measured in the temperature range from liquid nitrogen to room temperature. Quadropole splittings have been observed even above the distortion temperature. Each line of the Mössba…
Experiments are reported which show that the temperature distribution in molten gallium contained in a horizontal boat on which is impressed an axial temperature gradient becomes oscillatory when the temperature gradient exceeds a critical value. It is proposed that the oscillations are an example of the phenomenon of…
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans the biological, physical, and social sciences.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Reaction between Bovine Brain Tissue Factor and Factors VII and X*Yale NemersonCite this: Biochemistry 1966, 5, 2, 601–608Publication Date (Print):February 1, 1966Publication History Published online1 May 2002Published inissue 1 February 1966https://pubs.acs.org/doi/10.1…