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Multi-tasking is a common activity for computer users. Recent computer-based approaches to help support a user in multi-tasking require the user to indicate the start (and at least implicitly) end points of tasks manually. Although there has been some work aimed at inferring the boundaries of a user's tasks, it is not yet robust enough to replace the manual(More)
Prevalence of hepatitis G virus among Tunisian blood donors Hepatitis G virus (GBV-C/HGV) is a recently identified virus which occurs worldwide. The prevalence of GBV-C/HGV in Tunisia has not been previously studied. We aimed to assess the prevalence of GBV-C/HGV infection in Tunisian blood donors. A total of 912 blood donors were tested for anti-E2(More)
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