In an interview with Forbes.com following his talk, Cooper said that he had used an iPhone for a few weeks before handing it off to his grandson, saying that he couldn't navigate its contacts and that its shape and cell service made it a sub-standard phone.

FORBES: Magazine Article

Their research and design is on game-changing topics from how people in sub-Saharan Africa and India use computers and cell phones, to the use of Twitter and social media during crisis, to how digital gaming contributes to business relationships in China, to how American families control internet use at home.

FORBES: Where Are The Women In Tech On 30 Under 30?

The experts have worked out that many of the extra cases are a sub-group of the disease called "pre-cursor B-cell".

BBC: Clues to massive leukaemia rise

They do so by starting chain-reactions that result in the addition and subtraction of molecular sub-units known as phosphate groups from particular proteins in the nerve cell being stimulated.

ECONOMIST: The Nobel prizes: Informed choices | The