Sebastian Persson uses mathematical models as a complement to experiments to study biological systems in his doctoral thesis.

Iran has defied international demands to rein in its nuclear program and has increased its stockpile of uranium enriched to near weapons-grade levels, according to a confidential report by the ...

The Steelers are 2-0 The 31 other teams are 2-18 So what kind of grade do you get for scoring zero touchdowns? You'll find out. Let's get to the Week 11 grades, starting with Houston's Monday ...