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 ...

Aug 16, 2013
4.8 / 5 (5) 2

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 ...

Mar 21, 2014
5 / 5 (1) 0

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 ...

Oct 02, 2012
4.3 / 5 (3) 4

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.

May 09, 2012
3 / 5 (2) 6

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: ...

Aug 19, 2013
5 / 5 (9) 0

Erythromycin A produced in E. coli for first time

(PhysOrg.com) -- Researchers at Tufts University School of Engineering have reported the first successful production of the antibiotic erythromycin A, and two variations, using E. coli as the production host. ...

Nov 24, 2010
3.5 / 5 (2) 0 | with audio podcast