DDT—THE INSECTICIDE DDT AND ITS SIGNIFICANCE (VOL. II)

DDT dehydrochlorinase. II. Substrate and cofactor specificity.

In Paper I (1) of this series methods of purification and measurement of DDT dehydrochlorinase’ were described. Those physical and chemical properties that could be determined with the small amounts of purified enzyme available were presented. It was shown that proton liberation from the tertiary carbon atom of DDT (C-2) was not stimulated at alkaline pH although the enzyme possesses considerab...

DDT and Its Metabolites in Mexico

Ddt and Its Metabolites (dde, Ddd)

Spatial distribution of insecticide resistance in Caribbean populations of Aedes aegypti and its significance.

To monitor resistance to insecticides, bioassays were performed on 102 strains of the dengue vector Aedes aegypti (L.) from 16 countries ranging from Suriname in South America and through the chain of Caribbean Islands to the Bahamas, where the larvicide temephos and the adulticide malathion have been in use for 15 to 30 years. There was wide variation in the sensitivity to the larvicide in mos...

Atrioventricular block, type II (Mobitz)--its nature and clinical significance.