That is partly the healthy consequence of liberal economic reforms in the 1980s and 1990s: the previous policies of state-led import-substitution tended to concentrate economic activity close to the centres of political power.

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My work required deep concentration and I am positive that I would have been a far more efficient worker had I had a small office with a door that I could close when I needed to concentrate.

BBC: The pleasures and perils of the open-plan office

The Chinese, therefore, can concentrate their boats in waters close to their shores, giving them tactical and operating advantages.

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According to sources close to Mr Sarrazin, he declined, choosing to concentrate his energies on managing Kleinwort Benson instead.

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The unit is due to close as part of a Department of Health plan to concentrate heart and lung transplants at four or five centres of excellence.

BBC: Hospital slated over transplant deaths

United's chief executive David Gill preferred to concentrate on manager Sir Alex Ferguson's close links with the Scottish club and his friendship with Rangers boss Walter Smith, who was briefly assistant manager at Old Trafford in 2004.

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Avalanche did close on 6 January but will reopen on Friday after a refit designed to concentrate further on diversifying into vintage clothing, posters, band showcases with entry fees and its own website.

BBC: Scotland