But to compute an economic model, this theory has to be given concrete form, spelt out in definite algebraic terms.

ECONOMIST: Economic models

There is a definite argument to be made that videogames are becoming an art form put together by artists of different types.

FORBES: Magazine Article

Siemens used the show here to ask visitors to its stand to fill in a survey form about the SIMpad, but the company has no definite shipment plans for the device as yet, officials said.

CNN: Technology - Ericsson's entry revitalizes WebPad scene

There were 113 cases of definite or probable vCJD in the UK between 1996, when doctors distinguished it as a new form of the rare brain-wasting disease CJD, and 3 December.

BBC: Clutch of vCJD cases unrelated