Now showing items 1-10 of 10
Free and nonprotein amino acids of Tetrahymena pyriformis
(Elsevier, 1956-05)
Paper chromatography was used to determine 20 amino acids and related compounds present in both the free and the nonprotein forms in Tetrahymena pyriformis. The most abundant free amino acids in the cells were found to be ...
Physiology of the cell surface of Neurospora ascospores. II. Interference with dye adsorption by polymyxin
(Elsevier, 1956-05)
Polymyxin B prevents the germination of ascospores of Neurospora tetrasperma with an LD50 of 3-4 p.p.m. The toxic effect of polymyxin is partially reversed by calcium and magnesium ions. The effect of polymyxin on the ...
The metabolism of Brucellae: The oxidation of succinate as a function of pH and concentration
(Elsevier, 1956-10)
The marked difference between the rates of succinate uptake and oxidation by Brucella abortus that occurs when the concentration of hydrogen ions or the substrate is grossly increased was accounted for predominantly in ...
Infrared spectra of high polymers. V. Polyvinyl alcohol Presented in part at the Symposium on Molecular Structure and Spectroscopy, Columbus, Ohio, June 1956.
(Interscience Publishers, Inc.Wiley Periodiocals, Inc., 1956-11)
The infrared spectrum of polyvinyl alcohol has been investigated between 3600 and 70 cm. −1 . Polarization measurements on stretched specimens were made down to about 330 cm. −1 . The spectrum of a deuterated specimen ...
The metabolism of Brucellae: The nature of the effects of pH and concentration on the rate of oxidation of succinate
(Elsevier, 1956-10)
The sharp rise in the rate of oxidation of succinate by Brucella abortus that occurs with gross increases in hydrogen ion or the substrate concentration was accompanied by an even greater degree of increase in the rate of ...
Urease activity in soybean meal products
(Wiley Periodicals, Inc.Springer-Verlag, 1956-08)
Viscosity of dilute solutions of linear and branched polyvinyl acetate A preliminary account of this work was presented at the Ann Arbor High Polymer Research Conference, July 25, 1955.
(Interscience Publishers, Inc.Wiley Periodiocals, Inc., 1956-10)
The dilute solution viscosity properties of fractions of two linear and one branched sample of polyvinyl acetate in benzene and of two linear and one branched fraction in several solvents were measured at 35°C. Values of ...
Variation of contact angle and structure with molecular length and surface density in adsorbed films of fatty acids
(Elsevier, 1956-02)
Films of fatty acids from 12 to 22 carbons were prepared by adsorption on glass microscope slides from cetane solutions. Variations in density were achieved (1) by using a range of concentrations with a fixed short time ...