What's New?
.	December Journal
.	December Newsletter
.	Online Registration for HPS 2010 Midyear Meeting Now Available
.	NRC Academic Program Nuclear Education Grants, FY2010, Now Accepting Applications
.	EPA's STAR Graduate and GRO Undergraduate Fellowship Funding Now Accepting Applications

Upcoming Events
.	2010 HPS Midyear Topical Meeting Radiation Risk Communication to the Public 24-27 January 2010 Albuquerque, NM
.	2010 HPS Professional Development School Radiation Risk Communication: Issues and Solutions 27-29 January 2010 Albuquerque, NM

20 November 2009

Half-life (biological)

The time required for the body to eliminate, by biological processes, one-half of the material originally taken in.