Archive: 06/08/2011

Mutations: When benefits level off

Beneficial mutations within a bacterial population accumulate during evolution, but performance tends to reach a plateau. Consequently, theoretical evolutionary models need to take into account a "braking effect" in expected ...

Jun 08, 2011 not rated yet 7

High-tech remedy for urban planning headaches

Big cities everywhere grapple with similar issues: what is the best way to reduce urban sprawl, revitalize aging neighbourhoods and create more sustainable communities? Urban problems are complex for planners and often frustrating ...

Jun 08, 2011 not rated yet 0