Now showing items 11-20 of 63
Solubilization of water by dialkyl sodium sulfosuccinates in hydrocarbon solutions
(Elsevier, 1969-01)
The apparent solubilization of water in hydrocarbon solvents by the addition of 0.1% to 2.0% w/w di-(2-ethylhexyl) sodium sulfosuccinate (AOT) has been studied. In n-octane and n-decane, transitions of clear-turbid-clear-turbid ...
Circular dichroism of the “random” polypeptide chain
(Wiley Subscription Services, Inc., A Wiley Company, 1969-09)
The circular dichroism (CD) spectrum of an unordered polypeptide chain does not correspond, as has been assumed heretofore, to that of a charged chain such as poly- L -glutamic acid or poly- L -lysine. The latter have been ...
Zonal density gradient electrophoresis of intracellular membranes of brain cortex
(Elsevier, 1969-03-11)
Rat cerebral cortex was homogenized in a sucrose-free medium and a number of intracellular membrane fractions were isolated therefrom by means of differential and density-gradient centrifugation. The mitochondrial and ...
The action of trypsin and neuraminidase on the synaptic membranes of brain cortex
(Elsevier, 1969-03-11)
The population of intracellular membranes of rat cerebral cortex which exhibited the highest relative specific concentration of bound N-acetylneuraminic acid (NANA) and the highest relative specific activity of ...
Europium anomalies and the genesis of basalt: A discussion
(Elsevier, 1969-06)
The argument advanced by Philpotts and Schnetzler that europium anomalies in igneous rocks and minerals are mainly caused by crystal chemistry without control by oxidation-reduction reactions is refuted on the grounds that ...
Rhenium and technetium (VI) and meso-(VII) species
(Elsevier, 1969-01)
Spectrophotometric study shows that less than 35 per cent of normal perrhenate converts to a meso form in 15 M base, and Kf ~ 0[middle dot]1. The species absrobs at 260 m[mu] ([epsilon] = 6,400) and near 310 m[mu] ([epsilon] ...
Protein---carbohydrate interaction : Part XXI. The interaction of concanavalin a with d-fructans
(Elsevier, 1969-06)
The immunochemical techniques of quantitative precipitation and hapten inhibition have been employed in a study of the interaction of concanavalin A with several levans of bacterial and plant origin. Of the polysaccharides ...
Electrochemical oxidation-reduction paths for pyrimidine, cytosine, purine and adenine : Correlation and application
(Elsevier, 1969-07)
In order to evaluate the striking discrepancy between the experimental ease of polarographic reduction of adenine and cytosine, and that predicted by molecular orbital calculation, the electrochemical oxidation-reduction ...