Archive: 30/11/2009

Black hole caught zapping galaxy into existence?

(PhysOrg.com) -- Which come first, the supermassive black holes that frantically devour matter or the enormous galaxies where they reside? A brand new scenario has emerged from a recent set of outstanding observations of ...

dateNov 30, 2009 in Astronomy
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Peat fires drive temperatures up

Peatlands, especially those in tropical regions, sequester gigantic amounts of organic carbon. Human activities are now having a considerable impact on these wetlands. For example, drainage projects, in combination with the ...

dateNov 30, 2009 in Environment
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When roots lose contact

Plant roots can shrink as a result of water deficit and lose contact with the surrounding soil. This effect has been suspected for a long time, but has only now been demonstrated for a fact with the help of x-ray tomography. ...

dateNov 30, 2009 in Environment
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A reductionist approach to HIV research

A major obstacle to HIV research is the virus's exquisite specialisation for its human host - meaning that scientists' traditional tools, like the humble lab mouse, can deliver only limited information. Now, a team of researchers ...

dateNov 30, 2009 in HIV & AIDS
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