Bias, not stupidity, keeps women from science.(NEWSWATCH)

Lingering gender biases in academia keep many women from rising to top science jobs, according to women leaders in higher education. The group says subtle biases that often undervalue women's potential in science add up to derailed careers.

Problems for women scientists range from lack of role models and encouragement to hostile school climates and unconscious discrimination, according to their paper recently published in Science magazine. Their analysis counters that of Harvard president Lawrence Summers, who mused that gender differences might be to blame for barriers to women's achievements in math and science.

"We're not too stupid to do science, but there are real structural and attitudinal ...