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This paper presents a comparative overview of the performance of Si CMOS, SiGe BiCMOS and III-V HBT and FET technologies for 10-40Gb/s fiber-optic applications. Active and passive device performance requirements, as well as on-chip isolation issues are first addressed. Fundamental building blocks are overviewed and the pros and cons of each technology(More)
The norovirus NS6 protease is a key target for anti-viral drug development. Noroviruses encode a 2200 amino acid polyprotein which is cleaved by this critical protease at five defined boundary substrates into six mature non-structural (NS) proteins. Studies of the human norovirus (HNV) NS6 protease, in the context of a full ORF1 polyprotein, have been(More)
Assessment of the potential environmental impacts of nuclear fuel waste involves multiple lines of argument, one of which is an evaluation of the possible increments to background concentrations of certain radionuclides. This is especially relevant for radionuclides such as (3)H, (36)Cl and (129)I where there is continuous cosmogenic or geogenic production.(More)
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