Prof. Sankaran Manikutty was in Nigeria during the Winter quarter and has been travelling quite a bit for work. Hence the fewer posts last quarter. He has agreed to continue to blog with us for the next couple of quarters, and so he will continue to be with us. Another administrative message : the office hours for April concluded this week. The next office hours are on the first Monday of May. They will be between 7:30 and 8:15 am PST.