"Rather, it is the act of a deeply concerned scientist, a public servant and a pro-nuclear activist."

Unobserved by either of the two scientists most concerned, the sigma curve had, momentarily, become a trifle less irregular.

The H5N1 virus strain of bird flu is what has scientists so concerned.

Science popularization, social commitment of concerned scientists.

The Science magazine articles exemplify some of what has been going on, concerned scientists say.

Encourages and facilitates public discourse and international communication among concerned scientists.

The three men were gathered in the ship's conference room along with most of the crew and concerned scientists.

However some concerned scientists feel that the proposed precautions to prevent back contamination do not go far enough, at this stage of knowledge on Mars.

The dramatic 2007 melting surprised and concerned scientists.

As concerned scientists and advocates their paid and volunteer staff work each day on behalf of the community to protect our ocean wildlife.