Materials Literature
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Abstract Nickel crystal chemistry was systematically studied in various phyllosilicates, mainly the natural phases selected from the ‘garnierites’ of the supergene ore deposits of New Caledonia. Minerals which do not usually occur in New Caledonian parageneses were synthesised, as they could represent intermediate pha…
The sulfur-based organic metal di[bis(ethylenedithio)tetrathiafulvalene]triiodide [or (BEDT-TTF${)}_{2}$${\mathrm{I}}_{3}$, abbreviated (ET${)}_{2}$${\mathrm{I}}_{3}$] occurs in at least two crystalline phases. One phase (denoted as \ensuremath{\beta}) exhibits ambient-pressure superconductivity, while the second (den…
A variety of observations in humans and experimental animals indicate that large numbers of circulating cancer cells are killed in the microvasculature. It is suggested that this occurs when friction or adhesion between individual cancer cells and capillary walls results in an increase of tension in the cancer cell pe…
The paper gives a brief description of the Preisach-Krasnoselskii model [1,2] for scalar hysteresis and a geometric interpretation of the model. Previously, it was assumed that numerical implementation of the Preisach model required the evaluation of double integrals. The intent of this paper is to develop a new metho…
A modified method for S1 nuclease assay has been developed to quantitate an amount of radioactive transcripts in the presence of unlabeled homologous RNA. Using this method, we have assayed in vitro transcription of fibroin gene on circular and linear templates. In a posterior silk gland cell extract, covalently close…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, spectroscopy, and structures of copper(II)-3,5-di-tert-butyl-o-semiquinone complexesJeffery S. Thompson and Joseph C. CalabreseCite this: Inorg. Chem. 1985, 24, 20, 3167–3171Publication Date (Print):September 1, 1985Publication History Published online1 May 2002Pu…
Abstract The tectonically active Vancouver Island continental margin is characterized by a very narrow (< 80 km) continental shelf and an extremely steep continental slope. The shelf is marked by high wave and current energies on the inner, nondepositional shelf and very slow rates of sediment accumulation on t…
Heat exchange and thermal insulation were determined in four subjects during 120 minutes exposure (60 minutes exercise and 60 minutes rest) at +8°C in a climatic chamber. Two types of garment assemblies were investigated, each comprising a jacket, trousers, socks, mittens, and a hat of identical construction made of w…
The relationship between the structural type of anionic group and SHG effect in oxide compounds has been reviewed.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystallographic study of the low-spin iron(II) and iron(III) bis complexes of 1,4,7-triazacyclononaneJan C. A. Boeyens, Alister Forbes, Robert D. Hancock, and Karl WieghardtCite this: Inorg. Chem. 1985, 24, 19, 2926–2931Publication Date (Print):September 1, 1985Publication…
Abstract The five independent elastic moduli C 11 , C 12 , C 13 , C 33 , and C 44 of oriented high‐density polyethylene with draw ratio λ from 1 to 27 have been determined from −60 to 100°C by an ultrasonic method at 10 MHz. At low temperature the sharp rise in the axial extensional modulus C 33 with increasing λ and…
Abstract The oxidative polymerization of 2,6‐dimethylphenol ( 1 ) and the halogen displacement polymerization of 4‐halo‐2,6‐dimethylphenols ( 4 ) yielded poly[oxy(2,6‐dimethyl‐1,4‐phenylene)] ( 2 ) with one phenolic end group. 2,2′,6,6′‐Tetramethyl‐4,4′‐isopropylidenediphenol ( 9a ) was used as comonomer in both polym…
Abstract Synthesen der perhalogenierten 1,2,3,5‐Dithiadiazolium‐Salze FCN 2 S 2 + Cl − ( 5 ) (durch Metathese aus ClCN 2 S 2 + Cl − mit AgF 2 ), FCN 2 S 2 + AsF 6 − ( 5a ) (aus 5 und AgAsF 6 ), CF 3 CN 2 S 2 + Cl − ( 11 ) (aus CF 3 CN und S 3 N 3 Cl 3 in fl. SO 2 (bei dieser Reaktion werden als Nebenprodukte u.a. S 5…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNonlinear Broensted-type plot in the pyridinolysis of 2,4-dinitrophenyl benzoate in aqueous ethanolEnrique A. Castro and Carlos L. SantanderCite this: J. Org. Chem. 1985, 50, 19, 3595–3600Publication Date (Print):September 1, 1985Publication History Published online1 May 200…
Various sintered Nd15Fe77B8permanent magnets supplied by different producers have been examined by analytical electron microscopy. An identical microstructure was found in all of the different magnets. Three phases were detected by means of high resolution electron microscopy, electron diffraction and x-ray microanaly…
Abstract The viscoelastic properties of solid samples (crystals, amorphous films) of hen egg white lysozyme, bovine serum albumin, and sperm whale myoglobin were studied in the temperature range of 100–300 K at different hydration levels. Decreasing the temperature was shown to cause a steplike increase in the Young's…
Neutron inelastic scattering has been used to measure for the first time the ground- to excited-state crystal-field transitions in ${\mathrm{PrO}}_{2}$ (130 meV), ${\mathrm{BaPrO}}_{3}$ (255 meV), and ${\mathrm{UO}}_{2}$ (\ensuremath{\sim}160 meV). Details of these neutron experiments using the epithermal neutrons fro…
The arsenic composition dependences of electron and hole ionization coefficients, α and β, in
This paper describes current understanding of the propagation of transgranular stress corrosion cracking (TGSCC) in engineering alloys. In contrast to intergranular stress corrosion cracking (IGSCC), which proceeds by preferential anodic dissolution at the crack tip, TGSCC is considered to propagate by discontinuous b…
Mossbauer and DC susceptibility studies are reported on the mixed spinel Mg 1+t Fe 2-2t Ti t O 4 at various temperatures and in an external magnetic field. Results are obtained indicating that on increasing dilution t, the collinear ferrimagnetic phase breaks down before reaching the ferrimagnetic percolation limit as…