Trees are dying in the Sahel, a region in Africa south of the Sahara Desert, and human-caused climate change is to blame, according to a new study led by a scientist at the University of California, Berkeley.
Environment
Dec 12, 2011
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All 10 trillion cells in the adult human body are genetically identical, but develop into distinct cell types, such as muscle cells, skin cells or neurons, by activating some genes while inhibiting others. Remarkably, each ...
Cell & Microbiology
Dec 12, 2011
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Together with international colleagues, scientists from the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have added another important component towards understanding the material graphene; a material that is currently receiving ...
Nanophysics
Dec 12, 2011
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US computer chip giant Intel lowered its fourth-quarter outlook on Monday, citing a hard disk drive shortage caused by flooding in Thailand.
Business
Dec 12, 2011
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Over the past decade, attacks and plots by homegrown terrorists in the United States have increased, the work of extremists from across the political spectrum - roughly 40 percent of it by so-called 'lone wolf,' non-aligned ...
Social Sciences
Dec 12, 2011
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Many plants produce compounds that serve as a defense against predators or pathogens. Some are also used by humans for a variety of beneficial purposes, such as in medicines. As recently as the early 1990s, a unique class ...
Cell & Microbiology
Dec 12, 2011
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(PhysOrg.com) -- Planets orbiting a sun generally, but not always spin on their axis. Some spin east to west, others west to east. Those that don’t spin are said to be tidal locked with their sun; always showing it ...
(PhysOrg.com) -- Researchers at Chalmers have demonstrated that two stacked chips can be vertically interconnected with carbon nanotube vias through the chips. This new method improves possibilities for 3D integration of ...
Nanophysics
Dec 12, 2011
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NASA's Dawn spacecraft spent the last four years voyaging to asteroid Vesta – and may have found a planet.
Space Exploration
Dec 12, 2011
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You may have seen one of these astronomical scale picture sequences, where you go from the Earth to Jupiter to the Sun, then the Sun to Sirius – and all the way up to the biggest star we know of VY Canis Majoris. However, ...
Astronomy
Dec 12, 2011
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