In an earlier communication (I), Griffith and Byerrum reported that succinate-2,3-r4C was incorporated into positions 2 and 3 of the pyridine ring of nicotine, and 14C! was distributed essentially equally between the 2 carbon atoms. In addition, ‘4C-labeled glycerol was shown to be efficiently incorporated into the pyridine moiety, and it was suggested that positions 4, 5, and 6 of the ring are...

Efficient control of Tetranychus cinnabarinus (B.) is in challenge worldwide. Herein we report the use of an amphiphilic block copolymer, poly(ethylene oxide)-b-poly(caprolactone) (PEO–PCL), as a micellar carrier to make formulations of ricinine, a water insoluble botanical pesticide, and the tests of their physical properties and moreover the acaricidal activity on Vigna unguiculata (L). Compa...

1. BECK;ER, H. 1960. On the absorption of water by the wheat kernel. Cereal Chem. 37: 309-23. 2. CALVET, E. AND H. PRAT. 1956. Microcalorirmntrie. Masson Paris. 3. CALVET, E. AND H. PRAT. 1958. Recents progres en Microcalorimetrie. Dunod Paris. 4. FAN, L. T., D. S. CHUNG, AND J. A. SHELLENBERGER. 1961. Diffusion coefficients of water in wheat kerniels. Cereal Chem. 38: 540-48. G.Coo, MASASI. 19...