the 2-mono and 2,6-disubstituted methyl-1,4-dihydropyridines were synthesized by reaction of morpholine, thiophenol, 8-hydroxyquinoline, 2-naphthol and 2-mercopto-1-methyl imidazole with the 2-mono bromo and 2,6-dibromo-1,4-dihidropyridines.

In a previous publication the extraordinary tolerance of the newborn of various species to anoxia was described (1). Mature animals succumb after breathing undiluted nitrogen for approximately 3 minutes while the average values for newborn animals are: rats, 50 minutes; cats, 25 minutes; dogs, 23 minutes; rabbits, 17 minutes; and guinea pigs, 7 minutes. Various factors permitting this prolonged...

Investigating the longitudinal optical conductivity of graphene systems, which is the mostimportant property for opto-electronic devices, for three-layer graphene systems theoretically and numerically is the main purpose of this study. Each layer can be mono- or bi-layer graphene. Separation between layers has been denoted by d, selected to be about ten nanometers. The carrier densities i...

In the course of studies of the effect of heat on the proteins of human serum it was observed that, at pH 7.4, minute amounts of sodium iodoacetate completely prevented thermal coagulation, while traces of mercaptans markedly enhanced the coagulation. The present paper is an analysis of these observations. The thermal coagulation of a protein, such as egg albumin, has been postulated (1) to con...

It has been known that human cytosol alcohol dehydrogenase (alcoho1:NAD' oxidoreductase, EC 1.1.1.1), controlled by the ADHz locus, is polymorphic. Most Caucasians have enzyme Containing the usual PI subunit, while nearly 90% of Orientals have an enzyme containing the atypical / I 2 subunit. At physiological pH, the cytosol enzyme activity of atypical liver is much higher than that of typical l...

In the course of studies of the effect of heat on the proteins of human serum it was observed that, at pH 7.4, minute amounts of sodium iodoacetate completely prevented thermal coagulation, while traces of mercaptans markedly enhanced the coagulation. The present paper is an analysis of these observations. The thermal coagulation of a protein, such as egg albumin, has been postulated (1) to con...