Several 3-keto-synthases have been studied, including the soluble fatty acid synthases, those involved in polyketide synthesis, and the FAE1-like 3-ketoacyl-CoA synthases. All of these condensing enzymes have a common ancestor and an enzymatic mechanism that involves a catalytic triad consisting of Cys, His, and His/Asn. In contrast to the FAE1-like family of enzymes that mediate plant microsom...

The structure of chromatin undergoes extensive alteration during mammalian spermatogenesis. Several testis specific histone subtypes are synthesised and replace their somatic counterparts during pre-meiotic, meiotic and post-meiotic stages of germ cell differentiation. Early work from our laboratory showed that pachytene spermatocyte nuclei as well as nucleosome core particle are more accessibl...

The two-phase ejector refrigeration cycle (TPERC) system with a two-throat nozzle ejector was investigated experimentally, and the entrainment ratio of the ejector and the COP of the system were compared with those of the ejector with Laval nozzle and its TPERC system respectively. The experimental results indicate that under the working condition of the evaporating/condensing temperatures 1°C/...

isoxazole (2a-l) and cyanopyridine (3a-l) derivatives have been prepared by condensing chalcones (1a-l) with hydroxylamine hydrochloride and malononitrile respectively. while compounds 1a-l have been synthesized by the reaction of p-(3’-chloro-2’-benzo(b)thiophenoylamino)-acetophenone with different aldehydes. all the compounds were screened for their antitubercular and antimicrobial activities...

This paper presents Birkhoff-Kellogg type theorems on invariant directions for a large class of maps. A number of results which will enable to deduce results for upper semicontinuous maps which are either (a) Kakutani, (b) acyclic, (c) O’Neill, or (d) admissible (strongly) in the sense of Gorniewicz are given. The results in this paper, when the map is compact, complement and extend the previou...

We use the topological degree theory for condensing multimaps to present an existence result for impulsive semilinear functional differential inclusions in Banach spaces. Moreover, under some additional assumptions we prove the compactness of the solution set.