Nearly 5m women are thought to be using old newspapers, rags or even tree fibre as alternatives, often leading to infections.

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And in Uganda the government, appalled that money meant for schools was not reaching them, took to publicising how much was being allotted, using radio and newspapers.

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The palace had heard a number of UK newspapers were considering using them, a spokesman said.

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The palace said it had heard a number of UK newspapers were considering using the pictures, although none had until now.

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Marketers were skilled at using the new emerging media (the mass-market newspapers that had been enabled by the development of cheap printing technologies in the 1890s) to sell, but not particularly interested in the full-spectrum risk-taking required of true entrepreneurs.

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Google has actually been using reCAPTCHA with an ulterior motive: crowdsourcing the digitization of old newspapers and books.

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Radio and television stations and even newspapers throw off loads of cash, which private-equity firms can borrow against, using this leverage to repay their equity fast.

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Using Factiva, a Dow Jones-owned media-archive service, about 25 New York-centric newspapers, magazines, websites and blogs are scanned daily and scored based on what names are mentioned, the number of times the name occurs and the placement of the mention in the article, such as in the first paragraph, in a headline or caption.

WSJ: Methodology for NYIndex