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Among graduate students, whose conditions vary, some said they have close American friends, others said they don't have a single one.

Amazon’s Simple Notification Service also got a boost with a new Time to Live feature for mobile push notifications. Now, a developer can send a push notification to customers during a particular time window up to two weeks in length. That means a customer won’t have to get a notification for an event that has already happened while SNS couldn’t reach their phone.

Amid raging anti-globalisation and rising unilateralism and protectionism, people are wondering where the world should be going. Countries are looking to the upcoming G20 Summit in Buenos Aires, which will be the tenth ever held and the first one in South America, for an answer. In my opinion, G20 should and can play an important role in three areas.

Amazon’s long-rumored Android-based device, which would allow customers to stream Internet programs onto a TV,?would compete with products like Apple TV, the Roku and Google’s Chromecast. Amazon?had originally targeted a launch of the set-top box around the holiday season, but?those plans were delayed.

Among the doctorate recipients in engineering in 2015, only 45 percent were US citizens and permanent residents, and nearly 55 percent went to temporary visa holders; similarly in mathematics and computer science, US citizens and permanent residents got only 43 percent and more than 50 percent were obtained by foreign students, according to data from the National Science Foundation.