The CMOS-based IBM S/390 Parallel Enterprise Servers have always employed the technique of memory caching to bridge the gap between processor speed and mainmemory access time. However, that gap has widened with each succeeding system generation, requiring increasingly sophisticated, multiple-level cache structures in order to minimize memory-access latency. The IBM S/390 G5 and G6 include two-l...

Since the reintroduction of Aedes aegypti in the state of S o Paulo, in the middle of the 1980-decade, organophosphate insecticides are being used to control the dengue vector. In 1996, an annual program for monitoring the susceptibility of Ae. aegypti to the insecticides was implemented. Some of the results of this monitoring program are presented. Ae. aegypti populations from ten localities h...

Fenitrothion: An organophosphorus insecticide, fenitrothion (O,O-dimethyl O-4-nitro-m-tolyl phosphorothioate; CAS No. 122-14-5), which is a yellow-brown liquid with an unpleasant odor at room temperature, was introduced in 1959 by both Sumitomo Chemical Company and Bayer Leverkusen, and later by American Cyanamid Company (Hayes, 1982; Hayes and Laws, 1990; Worthing and Walker, 1987). Organophos...

We have carried out a survey of potential quadruplex structure sequences (PQSS), which occur in the immediate upstream region (500 bp) of human genes. By examining the number and distribution of these we have established that there is a clear link between them and the occurrence of the SP1-binding element 'GGGCGG', such that a large number of upstream PQSS incorporate the SP1-binding element.

The study was conducted with seven chemical pesticides to control the arthropod pests of some ornamental plants during November 2017 May 2018 at Gazipur in Bangladesh. Pesticides were applied following company recommended dose, more than farmers’ practicing dose and below dose. Actara 240SC (Thiamethoxam) Abom 1.8EC (Abamectin) @ 1.0, 1.25 (farmers’ practice), 1.5 (recommended) 1.75 ml/L water ...