Now showing items 1-10 of 53
Effects of anharmonicity of molecular vibrations on the diffraction of electrons : Part III. Predictive models
(Elsevier, 1980-04)
It has long been known how to relate anharmonic vibrational distribution functions to scattered electron intensities when deriving molecular parameters from gas-phase electron diffraction patterns. What has been lacking ...
A pseudopotential SCF-MO study of Te 4 2+
(John Wiley & Sons, Inc., 1980)
A recently developed ab initio pseudopotential molecular orbital approach was applied to the Te 4 2+ ion, a system outside the practical reach of conventional all-electron treatments. Computations were carried out ...
A convenient synthesis of substituted [gamma]-pyrones
(Elsevier, 1980)
An efficient and general synthetic method for various 2-mono- and 2,6-disubstituted [gamma]-pyrones has been developed. This utilizes the -acylation (70-85%) of [beta]-methoxy-[alpha],[beta]-enone lithium enolates by acid ...
Mechanism of cholesterol gallstone dissolution. II. Correlation between the effect of the alkyl amines as cholesterol gallstone dissolution rate accelerators and the degree of binding of the alkyl amines to the bile acid micelles
(Elsevier, 1980-03)
Recent studies have shown that cholesterol monohydrate pellet dissolution rates in real and synthetic bile systems are enhanced dramatically in the presence of small concentrations of amines, quaternary ammonium compounds, ...
Thermal resistivity of layered 4He films on ZYX graphite below 2 K
(Elsevier, 1980-04-01)
Thermal resistance and vapor pressure isotherms were taken near superfluid onset for ultra-thin helium films adsorbed on a ZYX graphite wafer between 1-2 K and 3-7 atomic layers. Our data are consistent with previous ...
Increased synthesis of phosphatidylcholine by rat lung following premature birth
(Elsevier, 1980-01-18)
Pregnant rats were delivered prematurely at 20 days and 21 days gestation (2 and 1 day premature). The survival was 52 +/- 3% at 20 days gestation and 100% at 21 days gestation. [Me-14C]Choline incorporation into ...
Thermophysics of the lanthanide hydroxides I. Heat capacities of La(OH)3, Gd(OH)3, and Eu(OH)3 from near 5 to 350 K. Lattice and Schottky contributions
(Elsevier, 1980-01)
From values of the heat capacity of microcrystalline La(OH)3, Gd(OH)3, and Eu(OH)3 determined by precise adiabatic calorimetry from near 10 to 350 K, the Schottky contribution associated with the low-lying J-manifolds of ...
Comparison of the phospholipid requirements and molecular form of CTP: Phosphocholine cytidylyltransferase from rat lung, kidney, brain and liver
(Elsevier, 1980-12-05)
The Cytidylyltransferase activity in fresh cytosol from different tissues of the rat was measured in the absence and presence of phosphatidylglycerol. In all cases addition of this lipid produced large increases in enzyme ...
NMR relaxivity changes in chloroplast suspensions. Effects of NH2OH and of treatments altering the redox state of the photosynthetic electron transport chain
(Elsevier, 1980-12-03)
Treatments (illumination, chemical oxidation or reduction) which are potentially capable of producing paramagnetic centers in chloroplast thylakoid membranes do not produce enhancements of the proton magnetic relaxivities ...