Now showing items 31-40 of 44
Continuous-flow enzymatic determination of creatinine with improved on-line removal of endogenous ammonia
(Elsevier, 1987)
A new continuous-flow automated enzymatic method suitable for the direct determination of creatinine in physiological samples is described. The proposed system utilizes an on-line gas predialysis unit in conjuction with a ...
Centrifugal distortions in molecules: An ab initio approach with application to water
(John Wiley & Sons, Inc., 1987-03-12)
Our procedure for employing analytical gradients of ab initio potential energy hypersurfaces in the description of centrifugally distorted molecules is applied to an asymmetric top, namely water. Both single determinantal ...
Synthesis and X-ray crystal structure of a dinuclear platinum hydride complex of tetracyanobiimidazole
(Elsevier, 1987)
Reaction of the diacid form of tetracyanobiimidazole via oxidative addition with two equivalents of Pt(PPh3)4 produces a dinuclear complex whose structure is solved by X-ray analysis. The presence of dihydride is confirmed ...
Ultraviolet-induced flashover of a plastic insulator using a pulsed excimer laser
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1987-03)
Ultraviolet-induced flashover has been observed over stressed, angled, acrylic insulators illuminated by a short (60 ns) pulse of excimer laser light at 249 nm. Flashover has been observed at ultraviolet fluences of 5–65 ...
Time-dependent WKB expansion for the non-relativistic coulomb propagator
(Elsevier, 1987-02-27)
An approximation to the non-relativistic Coulomb propagator, correct to second order in h, is derived. The result is expressed in terms of the auxiliary variables introduced in the solution of the corresponding Hamilton-Jacobi ...
Metabolism of high-density lipoproteins in cultured rat luteal cells
(Elsevier, 1987-09-04)
The uptake of cholesterol from high-density lipoproteins (HDL) labeled with 125I and [3H]cholesterol was examined in cultured rat luteal cells. Luteal cells were incubated with labeled HDL, following which the metabolic ...
C=O stretch mode splitting in the formic acid dimer: Electrostatic models of the intermonomer interaction
(Elsevier, 1987-06)
The physical origin of the large (74 cm-1) splitting between the symmetric (Ag) and antisymmetric (Bu) components of the C=O stretch mode in the formic acid dimer has previously been attributed to tautomerism effects, ...
Stereoselective acyclic synthesis via allylmetals: Threo vicinal diols from both - and -[gamma]-alkoxyallyltins and aldehydes
(Elsevier, 1987)
Both - and -[gamma]-alkoxyallyltins stereoselectively add to aldehydes in the presence of BF3[middle dot]OEt2 at -78[deg]C in CH2Cl2 to produce the threo (or syn) vicinal diol monoalkyl ether unit.
The microwave spectrum and structure of allyl alcohol
(Elsevier, 1987-11-16)
The microwave spectrum of the normal species of the gauche, gauche isomer of allyl alcohol has been reassigned and rotational and centrifugal distortion constants have been determined. Rotational constants of nine deuterated ...