Arif A. Siddiqi

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Dictyostelium discoideum utilizes G-protein-regulated transmembrane signaling systems to implement its developmental program. This report describes the Dictyostelium G-protein alpha-subunit, G alpha3, and demonstrates that it is required for normal development. G alpha3 is the largest of the four completely sequenced Dictyostelium G-protein alpha-subunits.(More)
In this paper, we have investigated several mixer structures including single-ended, single-balanced and double-balanced RF downconversion mixers in 0.25 μm standard CMOS technology. The comparison of designed mixers with the recent literature shows significant improvement in some of the major performance parameters. The final differential double-balanced(More)
The synthesis of 4,3-dihydro, 5-phenyl,4-(1 H-indolyl)-3-(3′4′5′-substituted pyrazole/oxazole) derivatives from [(3-phenyl-4,5-dihydro-5-substituted phenyl)-1 H-pyrazole/oxazole]-1 H-indolyl and [(3-phenyl-4,5-dihydro-5-substituted phenyl-1 H-pyrazole/oxazole]-1 H-(3-substituted indolyl) is described. The structures of the synthesized compounds have been(More)
A series of pyimidino derivatives including 4,5-dihydro-5-(1H-indol-1-yl)-6-(phenyl)-4-(4-substituted phenyl) pyrimidine-2-(1H)-one/thione and 4,5-dihydro-4-(3,4,5-trimethoxyphenyl)-6-phenyl-5-[3-(substitute-1-yl))-1H-indol-1-yl]pyrimidin-2(1H)-one/thione have been synthesis and their antimicrobial activity has been assessed in order to study the(More)
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