Now showing items 71-80 of 85
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 ...
The degradation of dynorphin A in brain tissue in vivo and in vitro
(Elsevier, 1987)
The demonstration of analgesia following in vivo administration of dynorphin A (Dyn A) has been difficult. In contrast, a number of electrophysiological and behavioral effects reported with in vivo injection of Dyn A can ...
Fractionation of sialylated oligosaccharides, glycopeptides, and glycoproteins on immobilized elderberry (Sambucus nigra L.) bark lectin
(Elsevier, 1987-04)
A new plant lectin from elderberry (Sambucus nigra L.) bark, which was shown by immunochemical techniques to bind specifically to terminal Neu5Ac([alpha]2-6)Gal/GalNAc residues of glycoconjugates, was immobilized onto ...
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, ...
Immunohistochemical localization of aminopeptidase M in rat brain and periphery: Relationship of enzyme localization and enkephalin metabolism
(Elsevier, 1987)
An antiserum specific for rat aminopeptidase M has been used for the immunohistochemical localization of the enzyme in rat brain and peripheral tissues. The enzyme in brain is localized exclusively on blood vessels. Within ...
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.
Nonlinear state feedback synthesis by global input/output linearization
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1987-04)
This paper studies the design of feedback controllers for trajectory tracking in single-input/ single-output nonlinear systems x = f(x) + g(x) u, y = h(x) . A nonlinear transformation of the form v = k(x) + Λ(x) u ...
Glycosyltransferase activities of Ehrlich ascites tumor cells: Detection, isolation, and characterization using oligosaccharide-Synsorb beads
(Elsevier, 1987-04)
Detergent extracts of Ehrlich tumor cell membranes exhibit a host of glycosyltransferase activities which have been investigated using oligosaccharides immobilized to Synsorb beads as acceptors. Glycosidase digestions in ...
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 ...