27/04/2009

New study overturns orthodoxy on how macrophages kill bacteria

For decades, microbiologists assumed that macrophages, immune cells that can engulf and poison bacteria and other pathogens, killed microbes by damaging their DNA. A new study from the University of Illinois disproves that.

Landfill cover soil methane oxidation underestimated

Landfilled waste decomposes in the absence of oxygen and results in the production of methane. Landfills are classified as the second-largest human-made source of CH4 in the U.S. Additionally, landfill gas contains numerous ...

Houston: The face of America in the next 20 years

Houston is a reflection of where most of America's cities will be in the next 20 years, according to Stephen Klineberg, Rice University sociologist and director of the annual Houston Area Survey.

Quantum ghosts are helpful

(PhysOrg.com) -- The idea that far distant particles can somehow 'talk' to each other worried Einstein so much that he called it 'spooky action at a distance'.

Our Sun: A Little Slow On the Uptake for Cycle 24

A very recent article carried by the BBC called, 'Quiet Sun Baffling Astronomers' sent me in a twitter of research activity. The BBC article's head notes include "The Sun is the Dimmest It Has Been for Nearly A Century" and ...

Study: SE Asia will be hit hard by climate change

(AP) -- Southeast Asia will be hit particularly hard by climate change, causing the region's agriculture-dependent economies to contract by as much as 6.7 percent annually by the end of the century, according to a study ...

New Blow for Dinosaur-Killing Asteroid Theory

(PhysOrg.com) -- The enduringly popular theory that the Chicxulub crater holds the clue to the demise of the dinosaurs, along with some 65 percent of all species 65 million years ago, is challenged in a paper to be published ...

Japan's Sharp reports 1.3 bln dollar annual loss

Japanese electronics giant Sharp Corp. announced an annual net loss of 1.3 billion dollars, its first ever, due to a slump in sales, but it forecast a return to profit this year.

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