Microdetermination of Acetyl Groups. II

Photometric Microdetermination of Human Gamma

The main purpose in performing the detailed experimental studies in Part I is the application of the photometric method to the determination of the gamma globulin content of human sera. These experimental studies show that protein fractions such as albumin or alpha globulins, whose electrophoretic mobilities are far removed from gamma globulin, cause little interference with its determination. ...

Microdetermination of Proline in Serum.

An accurate method for determination of proline in serum has been adapted to a micro scale, with good results. Acidic ethanol is used as a serum deproteinizing agent prior to development of color with ninhydrin and its extraction into benzene. The range of accuracy is ± 3.0% with as little as 0.2 ml. serum. The microdetermination of this amino acid facilitates study of the intermediary metaboli...

First non-abelian cohomology of topological groups II

In this paper we introduce a new definition of the first non-abelian cohomology of topological groups.  We relate the cohomology of a normal subgroup $N$ of a topological group $G$ and the quotient $G/N$ to the cohomology of $G$. We get the inflation-restriction exact sequence. Also, we obtain a seven-term exact cohomology sequence up to dimension 2. We give an interpretation of the first non-a...

Simple microdetermination of uric acid.

In 1947 Kalckar introduced a comprehensive differential spectrophotometric system for the analysis of purines, including uric acid (1). Praetorius and his associate Poulsen employed this procedure and have published detailed directions for a practical uric acid method (2, 3). During the past 4 years, over 2000 routine uric acid determinations on blood and urine have been performed in this labor...

II. Products of Groups