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Our study concerns the effects of exposure to lead chloride on the morphology, K+ efflux, SO4 − influx and GSH levels of the human erythrocyte. Blood was collected in heparinized tubes and washed three times. The cells were suspended at 3% hematocrit and incubated for 1 h at 25°C in a medium containing increasing concentrations of lead chloride (0, 0.3, 0.5 and 1 μM). After incubation, the suspensions...
We describe an approach to improving network performance in networks with heterogeneous links - for example, a communications network constructed from satellite links, airborne relays, and line-of-site radios - using disruption tolerant networking. DTN defines an overlay network that uses storage at each hop to make end-to-end communications resilient to delay, loss, network disruption, temporary...
Summary.Genetic variation continues to be a major obstacle in the development of therapies and vaccines against retroviral infections and contributes extensively to viral pathogenesis and persistence. Recombination is one mechanism that increases retroviral variation by shuffling mutations from different genomes. Recent studies suggest that recombination not only shuffles the mutations but also generates...
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