Evidence from the American Bureau of Labour Statistics support the conservative argument that they have used their power to extract a wage premium: public-sector workers earn, on average, a third more than their private-sector counterparts.

ECONOMIST: Public-sector workers

Innovations like hydraulic fracturing, known as "fracking, " have made it easier to extract oil and especially natural gas from energy-rich geological formations such as the Niobrara shale, which stretches from Wyoming to beneath the densely-populated Front Range of Colorado's Rocky Mountains.

WSJ: As energy boom nears cities, a backlash grows

To extract Malampaya's gas, Shell will put down nine undersea wells - five in 2002 and four in 2009 - plus a production platform being built in Singapore and Subic.

CNN: Up from the Ocean

As a result, tumours in mice that were fed the extract - dimethyl fumarate (DMF) - were significantly smaller than those in mice given a normal diet.

BBC: NEWS | Health | Food extract boosts cancer drug

The small size of the LED light chip allows another advantage arising from the physics of optics: Engineers can employ collaterally small lenses making it possible to efficiently extract, direct and focus the lumens, achieving useful illumination with far fewer lumens--and far less energy--wasted.

FORBES: The LED Illumination Revolution

The White House, with the aid of contractors, will have to go back through those tapes -- perhaps six months worth -- to extract the missing e-mail messages.

CNN: White House officials say e-mail problem was not a high priority at end of 1999

Google also said that it has new 3-D imaging and rendering technology, which will extract more dat from the higher-resolution aerial photographs captured by a fleet of planes working exclusively on behalf of Google.

FORBES: Google Updates Maps, Takes Them Offline -- for Android

Memory-Plus, an extract from the supposedly memory-enhancing brahmi plant, is popular among India's overburdened students.

CNN: SPECIAL REPORT: HEALTH

He added the company was working hard to eradicate non-genuine users, many of whom aimed to extract money from web-surfers.

BBC: Business