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A number to know: The value of fresh meat

30%

The average spike in sales of quarter-pound burgers at McDonald’s, after the chain switched burger patties of that size to fresh beef  from frozen.

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Researchers working on app that sees injury risks at work

Researchers at the University of Washington have developed a system that can monitor factory and warehouse workers and tell them if they risk musculoskeletal injuries in real time, and they’re using their knowledge to develop an app. The researchers used machine learning ...