Simultaneous occurrence of pure red cell aplasia and papular-purpuric `gloves and socks' syndrome in parvovirus B-19 infection

Papular-purpuric ‘gloves and socks’ syndrome (PPGSS) has been associated with parvovirus B-19 infection. We report a case of an adult immunocompetent male who presented with PPGSS. Bone marrow examination revealed pure red cell aplasia. Parvovirus B-19 DNA was detected by polymerase chain reaction in the patient’s serum, whole blood and in the cutaneous lesions. This report illustrates the variety of clinical manifestations caused by B-19 infection, presents for the first time the concurrent appearance of pure red cell aplasia and PPGSS in the same patient and, finally, suggests that PPGSS may be due to direct lytic effect of the virus

On the relative importance of cross and homotermination in radical copolymerization

Computer simulations of the copolymerization of styrene and methyl methacrylate have been carried out in an attempt to assess the relative importance of the cross and the two homotermination processes. During the copolymerization, termination by methacrylyl-methacrylyl interaction is of relatively little significance. Termination occurs mainly through styryl-styryl and styryl-methacrylyl interaction. Features of models commonly used to describe polymerization kinetics are discussed

Allylcarbinyl-cyclopropylcarbinyl rearrangement [10]

Peer reviewed: YesNRC publication: Ye