Now showing items 371-380 of 384
Addition compounds of methyl substituted cyclic ethers with boron trifluoride
(Elsevier, 1961-04)
A manometric method was used to study the addition compounds of boron trifluoride with 2-methyltetrahydrofuran, 2,5-dimethyltetrahydrofuran, 2-methyltetrahydropyran and 2,6-dimethyltetrahydropyran. Physical characteristics ...
Interaction of heat-denatured HeLa cell DNA with synthetic and natural polysaccharides
(Wiley Subscription Services, Inc., A Wiley Company, 1968-11)
Heat-denatured DNA from HeLa cells interacts with natural as well as synthetic polysaccharides. Glucose does not inhibit the interaction nor will it produce it. Polysaccharides with a molecular weight of 10000 or greater ...
Bounded and patched solutions for boundary value problems
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1965-05)
The technique of bounding, that is of constructing general solutions for all ranges of the variables and parameters from solutions for a few limiting and special cases, is outlined and illustrated for problems in conduction ...
The destruction of indoleacetic acid. III. Relationships between peroxidase action and indoleacetic acid oxidation
(Elsevier, 1960-03)
The indoleacetic acid (IAA)-oxidizing enzyme preparation from Omphalia flavida exhibits peroxidase activity on pyrogallol with an optimum at pH 3.5-3.7, like that for the IAA-oxidizing activity. It shows no polyphenolase ...
Purification of pyridine for voltammetric studies : Effect of impurities
(Elsevier, 1967)
Purification of pyridine by zone fractional crystallization reduces the concentration of prewave-producing contaminant below polarographic detection limits, i.e., 0.01 mM. A qualitative test based on the stability of the ...
Seed germination studies II. Pathways for starch degradation in germinating pea seedlings
(Elsevier, 1966-07-06)
Amylase activity is present in extracts of the axis tissue of etiolated pea seedlings. Several lines of evidence establish that this starch-hydrolyzing activity is due to the presence of a [beta]-amylase ([alpha]-1,4-glucan ...
The direct determination of the effect of pressure on enthalpy of a mixture of methane and propane
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1969-01)
A new throttling flow calorimeter has been incorporated into the recycle facility of the Thermal Properties Laboratory. Energy is added to the expanding gas while it flows through a stainless steel capillary tubing from ...
Reconstitution of oxidative phosphorylation in submitochondrial particles by a soluble protein phosphoryl transferase
(Elsevier, 1968-01)
A protein designated phosphoryl transferase has been isolated from beef heart mitochondria and has been found to increase the ability of Submitochondrial particles, oxidizing either NADH or succinate, to synthesize ATP ...