News tagged with biological systems

How pesticides change the environment

The number of humans on the planet has almost doubled in the past 50 years ‒ and so has global food production. As a result, the use of pesticides and their effect on humans, animals and plants have become ...

Aug 16, 2013
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Rethinking the value of sewage sludge 

Researchers from the Plant Nutrition Group at ETH Zurich have been evaluating methods to develop an efficient and environmental friendly phosphate fertilizer from sewage sludge ashes. A new thermo-chemical ...

Aug 16, 2013
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Mitochondrial cooperatives

Mitochondria, the organelles that supply the cell with energy, are highly dynamic and can link up to form complex tubular networks. A new study shows that this response can transiently compensate for a shortfall in energy ...

Aug 13, 2013
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Panel calls for protecting world's largest forest

At least half of Canada's 1.4 billion acre boreal forest, the largest remaining intact wilderness on Earth, must be protected to maintain the area's current wildlife and ecological systems, according to a ...

Aug 02, 2013
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When diffusion depends on chronology

The Internet, motorways and other transport systems, and many social and biological systems are composed of nodes connected by edges. They can therefore be represented as networks. Scientists studying diffusion ...

Jul 15, 2013
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