Performance pay programs designed by teachers, for teachers, tend to offer small incentives to a large number of teachers, new research indicates.
Other
Apr 6, 2009
1
67
The breezes blowing across the shallow waters of the mid-Atlantic coast, including North Carolina, hold some of the nation's highest potential for harvesting wind energy, a new federal report says.
Energy & Green Tech
Apr 6, 2009
2
79
(PhysOrg.com) -- Bananas are a staple crop of Rwanda. The fruit is eaten raw, fried and baked — it even produces banana beer and wine. Around 2 million tons are grown each year but the fruit is only a small percentage of ...
Energy & Green Tech
Apr 6, 2009
5
149
(PhysOrg.com) -- GOCE's sophisticated electric ion propulsion system has been switched on and confirmed to be operating normally, marking another crucial milestone in the satellite's post-launch commissioning phase.
Space Exploration
Apr 6, 2009
2
208
The latest data from NASA and the University of Colorado at Boulder's National Snow and Ice Data Center show the continuation of a decade-long trend of shrinking sea ice extent in the Arctic, including new evidence for thinning ...
Earth Sciences
Apr 6, 2009
43
142
The legend is that the great rulers of Canaan, the ancient land of Israel, were all men. But a recent dig by Tel Aviv University archaeologists at Tel Beth-Shemesh uncovered possible evidence of a mysterious female ruler.
Archaeology
Apr 6, 2009
0
352
Scientists said a killer earthquake that struck central Italy on Monday occurred in a notorious trouble spot and warned further powerful shocks in the coming months could not be ruled out.
Earth Sciences
Apr 6, 2009
0
89
Researchers are reporting the first identification of a "magic potion" of proteins in the saliva of the black fly that help this blood-sucking pest spread parasites that cause "river blindness," a devastating eye-disease. ...
Biochemistry
Apr 6, 2009
0
124
Adults facing unexpected career changes, take note. Scientists from Brazil and Cuba are reporting that honey bees — a mainstay for behavioral research that cannot be done in other animals — change their brains before transitioning ...
Biochemistry
Apr 6, 2009
0
108
(PhysOrg.com) -- Saturn's largest moon, Titan, may have a subterranean ocean of hydrocarbons and some topsy-turvy topography in which the summits of its mountains lie lower than its average surface elevation, according to ...
Space Exploration
Apr 6, 2009
7
205
