News tagged with biological activity

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 ...

dateAug 16, 2013 in Environment
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Switching an antibiotic on and off with light

Scientists of the KIT and the University of Kiev have produced an antibiotic, whose biological activity can be controlled with light. Thanks to the robust diarylethene photoswitch, the antimicrobial effect ...

dateMar 21, 2014 in Biochemistry
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Keeping time: Circadian clocks

Our planet was revolving on its axis, turning night into day every 24 hours, for 4.5 billion years - long before any form of life existed here. About a billion years later, the very first simple bacterial ...

dateOct 02, 2012 in Cell & Microbiology
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Evolution may explain 'Runner's high,' study says

(HealthDay) -- The pleasurable feeling known as "runner's high" that's triggered by aerobic exercise may have played a role in the evolution of humans' ability to run long distances, a new study suggests.

dateMay 09, 2012 in Other
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The developmental on-switch

German researchers have demonstrated for the first time why the molecular cocktail responsible for generating stem cells works. Sox2 and Oct4 are proteins whose effect on cells resembles that of an eraser: ...

dateAug 19, 2013 in Cell & Microbiology
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A new global warming culprit: Dam drawdowns

Washington State University researchers have documented an underappreciated suite of players in global warming: dams, the water reservoirs behind them, and surges of greenhouse gases as water levels go up and down.

dateAug 08, 2012 in Environment
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