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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.

Among major industries, oil and natural gas extraction saw slower price drops in November, with prices declining 11.2 percent year on year, narrowing by 6.7 percentage points.

Amazon’s stock hit an all-time high today, closing at 8.43 per share, after a Wall Street analyst upgraded the company’s stock, saying that investors have been underestimating Amazon’s global network of distribution centers.

Among other factors: Rising shipping expenses are also an issue for the company, and analysts point out that tough times in areas including video games could put a dent in key areas of the company’s retail sales.

Among them, harvesting and field operation machinery, bulldozers, loaders, numerical control machines and vehicles, saw their export volume jumping by 51.5 percent 70.4 percent, 48.6 percent, 44.1 percent and 31.2 percent year-on-year respectively.