Let S-Set be the category of $S$-sets, sets together with the actions of a semigroup $S$ on them. And, let S-Pos be the category of $S$-posets, posets together with the actions compatible with the orders on them. In this paper we show that the category S-Pos is a radical extension of S-Set; that is there is a radical on the category S-Pos, the order desolator radical, whose torsion-free class i...

Malaria and HIV/AIDS are among the principal causes of morbidity and mortality worldwide, particularly in resource international community’s efforts to reduce incidence and prevalence of these diseas a global public health problem. Clinical manifestations of malaria may be more severe in HIV infected patients, which have higher risks of severe malaria and malaria related death. Co pregnant wome...

Phentermine has been used in the USA to treat obesity sinc, at least 1961 and was widely used after 1992 in combinatio. with fenfIuramine_ A swdy in 1997 suggested that thi combination could be associated with hean-valve diseas similar to that seen in the carcinoid syndrome or in patients who had taken ergotamine, as well as with pulmo hypertension, previously descn"bed.' It was suggested that ...