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SPAUN J - - 1962
The International Opacity Reference Preparation is a polydisperse suspension of glass particles, the size distribution of which it is hardly possible to reproduce. However, by mixing glass particles of different size distributions it seems practicable to prepare a suspension which is turbidimetrically almost identical to the International Opacity Reference Preparation. ...
BARBOSA F S - - 1958
The authors describe the bilharziasis endemic areas in north-eastern Brazil, giving the rainfall and general characteristics of the climate. The life-cycles of the two snail vectors-Australorbis glabratus and Tropicorbis centimetralis-in Pernambuco are described. Considerable attention is given to the effects on the snails of the annual drought, which causes many ...
TAGER M - - 1956
The coagulase-reacting factor (CRF) of human plasma has been purified, concentrated, and largely freed of prothrombin activity by Seitz filtration, absorbtion on hyflo-amphogel columns, controlled phosphate buffer elution, and fractional ammonium sulfate precipitation. The purified CRF preparations localized between the beta and the gamma globulin position on paper electrophoresis, and ...
VOGEL F S - - 1953
Kernicteric pigment was extracted by means of chloroform from the brains of 3 infants. Solutions of it gave a positive diazo reaction, and, as determined electrophotometrically, gave maximum absorption of light having a wavelength of 425 mmicro, being identical in these properties with chloroform solutions of crystalline mesobilirubin. Experimental kernicterus ...
WILLIAMS H B - - 1950
1. Adsorption of ovalbumin on the latex surface was in excess of the quantity required to produce coverage of the surface over most of the protein concentrations range which was investigated. 2. "S" shaped isothermals which probably indicated multilayer adsorption were obtained. 3. The quantity of ovalbumin required to produce ...
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