WASHINGTON, Oct. 13 -- The National Science Foundation announced that it expects to award up to 20 grants for social, behavioral, and economic sciences postdoctoral research fellowships. The agency description of the grant states: "The Directorate for Social, Behavioral and Economic Sciences (SBE) offers Postdoctoral Research Fellowships to encourage independence early in the fellow's career by supporting his or her research and training goals. The research and training plan of each fellowship  more ST