Labor Dynamics in a Mobile Micro-Task MarketMohamed Musthag & Deepak Ganesan, University of Massachusetts AmherstJob Opportunities through Entertainment: Virally Spread Speech-Based Services for Low-Literate UsersAgha Ali Raza, Carnegie Mellon University; et al.Farhan Ul Haq, Lahore University of Management Sciences
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A butterfly officially classed as extinct in the UK has been seen at sites across southern England, says a conservation charity.
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