Though a parent might not regularly open windows in the house, it does not mean a child can't or won't.

CNN: Be aware of hidden household hazards

Some researchers, including Nancy Kedersha, a biologist at ImmunoGen (a biotechnology company in Cambridge, Massachusetts) who was one of the discoverers of vaults, think they regularly switch from open (ie, flowers) to closed (ie, barrels).

ECONOMIST: Cell biology: The secret of the vaults | The

He remembers how Tagg showed up at an open house he holds regularly in his home district.

NPR: Denied Treatment, U.K. Vet Stands Up for Liberty

Chief bulwark for the Ospreys against the waves of red shirts was open-side Marty Holah, regularly disappearing into a ruck to turn over Scarlets possession, while Alun Wyn Jones and Collins tackled their hearts out.

BBC: Scarlets 14-21 Ospreys

This open "wiki" method of review is regularly employed in physics, the home field for seven of the 10 Berkeley team.

BBC: Global warming 'confirmed' by independent study

Wednesday, languishing in the First Division relegation zone, should have taken the lead in an open first half in which goalscoring chances came regularly.

BBC: Coventry 1-1 Sheff Wed

Firefox has 50 in-house developers, but, in open-source tradition, 1, 000 volunteers worldwide regularly contribute code.

FORBES: Web Warrior

As Forbes pointed out in February, the owners and operators of the biggest online poker firms are an open secret--and many of them can be found regularly playing poker in Las Vegas or promoting their companies at U.S. events shown on television.

FORBES

K. Venkatesh Prasad, senior technical leader for open innovation with Ford Research and Innovation, will travel from Michigan to the Bay Area regularly to organize the lab.

WSJ: Ford Joins Quest to Tap Silicon Valley's Innovation

But, despite the open nature of the game, the changes brought United no closer to a breakthrough, with their attacks regularly thwarted by the excellent Bolton central defensive pair of Cahill and David Wheater.

BBC: Manchester United 1-0 Bolton