The charity is currently funding some Leeds-based research into how artificial hips are worn away during the "swing phase" of walking, which it is hoped will highlight the benefits of different materials, and lead to recommendations to improve surgical techniques or design.

BBC: Longer-lasting hip-joint hope

Swing changes are the stuff of spring training optimism, but when the changes lead to regular-season success it is worth at least a raised eyebrow.

WSJ: Don't Blame the Yankees' Replacements

They would have known that they would not get the Windows Phone playground to themselves, but to have Microsoft swing in and push their own handset as opposed to the whole platform will lead to some long conversations in the board room over strategy and alternatives.

FORBES: What Will Be The Impact Of Microsoft's Mythical Windows Phone When It Is Announced?

After steering clear of South Carolina, where Mr. Gingrich holds a commanding lead in recent polls, Mr. Romney will begin a campaign swing through the state beginning Friday.

WSJ: Gingrich Defends Stances in GOP Debate