WEST LAFAYETTE, Ind. - Purdue University scientists aren't quite making house calls, but a new iPhone app can put their knowledge about tree disorders in the palm of anyone's hand. The Purdue Tree ...

WASHINGTON (AP) -- If you've ever wondered what type of tree was nearby but didn't have a guide book, a new smartphone app allows users with no formal training to satisfy their curiosity and ...

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The rise in startups following the introduction of mobile phones has also seen an increase in the number of social ventures and companies with a goal to make a difference in society. Korea’s Tree ...