11.   Then the professor in him takes over.

12.   Thousands of university professors took to the streets this morning as a strike over a new contract dragged on.

13.   Other math professors took votes among their students on canceling classes for anti-war teach-ins or Third World strikes.

14.   Professor takes on might of Swiss banks.

15.   When the bespectacled mathematics professor took power, he faced the challenge of running a country many Peruvians feared had become ungovernable.