This chart says it all (click on it to see a version large enough to read):
[3]
This chart was part of Mike Roco's presentation at the 2010 NSF NSE Grantee Meeting.
This chart says it all (click on it to see a version large enough to read):
[3]
This chart was part of Mike Roco's presentation at the 2010 NSF NSE Grantee Meeting.
Links:
[1] http://www.nisenet.org/users/larry_bell
[2] http://www.nisenet.org/user/login?destination=node/5507
[3] http://www.nisenet.org/sites/default/files/screen_shot_2010-12-08_at_9.02.45_am.png
[4] http://www.nisenet.org/blogs/observations_insights