Now showing items 21-30 of 81
Reconstitution of a cyclic amp-dependet protein kinase from Dictyostellium discoideum
(Elsevier, 1983-07-28)
Dicytostelium discoideum has a cyclic AMP-dependent protein kinase activity which can be assayed after DEAE-ion exchange chromatography. Mixing cAMP binding protein (free of kinase activity) from the DEAE column eluate ...
The distribution of cholecystokinin and vasoactive intestinal peptide in rhesus monkey brain as determined by radioimmunoassay
(Elsevier, 1983-07)
The concentration of cholecystokinin (CCK) and vasoactive intestinal peptide (VIP) in dissected cortical and subcortical areas of four rhesus monkeys' brains was determined by radioimmunoassay (RIA). Cerebral cortical ...
A novel approach towards the synthesis of the 3,4,5-trihydro-1,3-diazepin-5-ol ring structure
(Elsevier, 1983)
A catalytic reduction of the nitrile portion of the trimethylsilyl cyanohydrin to a primary amine has produced an situ annulation to generate the 3,4,5-trihydro-1,3-diazepin-5-ol ring. This ring substructure has demonstrated ...
A new procedure for the synthesis of polyethylene glycol-protein adducts; Effects on function, receptor recognition, and clearance of superoxide dismutase, lactoferrin, and [alpha]2-macroglobulin
(Elsevier, 1983-05)
A new, simplified technique for the synthesis of polyethylene glycol (PEG) derivatives of proteins utilizing 1,1'-carbonyldiimidazole for PEG activation, is described. PEG derivatives of superoxide dismutase, [alpha]2-ma ...
Surface enhanced raman spectroscopy of halide ions on colloidal silver: morphology and coverage dependence
(Elsevier, 1983-01-02)
Transmission electron microscopy shows that the colloidal silver used as a substrate for surface enhanced Raman spectroscopy consists of 75-135 A average diameter faceted crystals, which can be made to aggregate in clusters ...
Characterization of a hybrid flame/arc excitation source using monodisperse aerosol introduction
(Elsevier, 1983)
A hybrid flame/arc excitation source together with a monodisperse droplet generator is used to inject solute particles into selected regions of the arc plasma. With astigmatic image transfer and a 0.5 [mu]s time constant ...
Phase II evaluation of MGBG in non-small cell carcinoma of the lung
(Martinus Nijhoff, The Hague/Kluwer Academic Publishers; Martinus Nijhoff Publishers ; Springer Science+Business Media, 1983-03)
One hundred and eight patients with non-small cell lung cancer were treated in a Phase II trial with MGBG at a dose of 600 mg/m 2 i.v. weekly. Partial responses were noted in 3/43 patients with adenocarcinoma and 1/40 with ...
Thermodynamics, handmaiden to science and technology
(Kluwer Academic Publishers; Akadémiai Kiadó ; Springer Science+Business Media, 1983-05)
Generally, the only items of reference data with real economic impact are—except in a few instances—the basic values from which the standard enthalpy increment of reactions and the Gibbs energy of formation of the substances ...
An inexpensive, microcomputer-based, video densitometer for quantitating thin-layer chromatographic spots
(Elsevier, 1983-07-01)
An inexpensive video densitometer based on an Apple II microcomputer using commercially available components was developed. The device was used to quantitate charred lipid and colored spots on thin-layer chromatography ...