Piperidinecarboxamides with potential CNS and cardiovascular properties.
Several 1- and 2-(2-phenylethyl)piperidinecarboxamides were prepared and subjected to preliminary pharmacological studies. Moderate to strong activity by several compounds was observed in modified dopa potentiation tests in mice.
The Evolution of Chemical and Biological Weapons in Egypt
This paper deals with various aspects related to the military chemical and biological capabilities of Egypt, a country whose offensive concept and capacity in these spheres have virtually not been explored at all, let alone comprehensively. Although chemical weapons (CW) and biological weapons (BW) have concurrently been developed by Egypt since the 1960s, the strategic, political and technological aspects included in the present study are in part approached through different methods with regard to the chemical and biological fields, due to the respective dissimilar nature of the existing information.
THE IRON-ACETOCARMINE METHOD OF FIXING AND STAINING CHROMOSOMES
A short description of this procedure was given in Vol. 55 of the American Naturalist, pp. 573â€”574. The method has now been used almost daily for five years, and certain improvements have suggested themselves. The solution can be prepared by mixing about equal volumes of glacial acetic acid and water. To this is added powdered carmine in excess. The liquid is then â€ ? just brought to boil, cooled, and decanted. To the red solution there are then added a few drops of a solution of ferric hydrate in 50 per cent. acetic acid, to act as a mordant. The amount of iron varies with different objects. Too much produces a precipitate in a short time. The more