Now, Prof Bert de With of the Eindhoven University of Technology in the Netherlands and his colleagues have discovered a nano-structure solution to the problem.

BBC: Coating heals itself after damage

In a nutshell, the problems were efficiency and scale, and the solution was bureaucracy, with its hierarchical structure, cascading goals, precise role definitions, and elaborate rules and procedures.

FORBES: Connect

The solution, says Chand, is to carefully structure compensation packages to reward ambition.

FORBES: Companies, People, Ideas

As Mr Livio explains, Galois's achievement was to show that the structure of these symmetries determines whether the equation has a simple solution.

ECONOMIST: The history of mathematics

The Director the UNESCO Office in Havana discussed with the experts the current situation of the building structure, which must be reinforced with micropiles, the technical solution agreed upon after numerous diagnoses.

UNESCO: MEDIA SERVICES