I am on sabbatical through June 2007. Be advised that I am not reading my email as regularly as I might otherwise; responses may be delayed. Please accept my apologies. I will not be taking on any new projects during my sabbatical. If you're writing to ask me to review a paper or serve on a program committee, I'm afraid I can't do it. In an emergency, you may contact Tammy Johnson 510-643-4816 <email@example.com>.