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"Twenty-first century imperialism has changed its form. In the 19th century and the first half of the 20th century, it was explicitly related to colonial control; in the second half of the 20th century it relied on a combination of geopolitical and economic control deriving also from the clear dominance of the United States as the global hegemon and leader of the capitalist world dealing with the potential threat from the Communist world. It now relies more and more on an international legal and regulatory architecture-fortified by various multilateral and bilateral agreements-to establish the power of capital over labor. This has involved a "grand bargain," no less potent for being implicit, between different segments of capital. Capitalist firms in the developing world gained some market access (typically intermediated by multinational capital) and, in return, large capital in highly developed countries got much greater protection and monopoly power, through tighter enforcement of intellectual property rights and greater investment protections."

"Managing plastics has become a grand and complex environmental challenge, and plastic packaging clearly warrants current efforts on reductions and coordinated material recovery and recycling," said Gregory Keoleian, senior author of a paper published Aug. 25 in the journal Environmental Research Letters.

Rogue waves - enigmatic giants of the sea - were thought to be caused by two different mechanisms. But a new idea that borrows from the hinterlands of probability theory has the potential to predict them all.

Artificial intelligence (AI) has solved one of biology's grand challenges: predicting how proteins curl up from a linear chain of amino acids into 3D shapes that allow them to carry out life's tasks. Today, leading structural biologists and organizers of a biennial protein folding competition announced the achievement by researchers at DeepMind, a U.K.-based AI company. They say the DeepMind method will have far-reaching effects, among them dramatically speeding the creation of new medications.