To get Anderson localisation to operate in a random laser has not been easy, mainly because it is hard to find a substance that both acts as a high-gain medium and scatters light very strongly.

ECONOMIST: Microlasers

Unlike rich countries, this argument goes, Latin America may gain more in the medium term by defending its hard-won fiscal stability and relying on the outside world for stimulus.

ECONOMIST: Latin America's economies

Will small and medium businesses be able to meet these standards and gain access to international green markets?

FORBES: Rio+20: What's Trade Got to Do with It?

In fact, the Web is the only medium Zenith expects to grow this year, with a 9.2% gain anticipated for all of 2009.

FORBES: Advertising

As that medium loses its value, and as things like YouTube, Reddit and Facebook gain value, you get this wonderful leveling of the playing field in the political world as well.

FORBES: Reddit Co-Founder Alexis Ohanian's Rosy Outlook On The Future of Politics

September's biggest drops were seen in medium-sized businesses, which accounted for a 30, 000 drop, while small businesses reported a gain of 28, 000.

FORBES: Magazine Article