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Amazon’s “Distance Assistant,” on the screen at left, uses a computer and large screen display in conjunction with depth sensors, machine learning, and augmented reality. (Amazon Photo)

Amid COVID-19, he restricted travel from Europe and China. He also closed the border with Canada and Mexico.

Amazon’s stock surge over the past five years. (Image via Google Finance)

Among the geometric DNA frameworks designed and constructed in the experiments were 2D crosses, squares, triangles and honeycomb shapes as well as 3D cubes, tetrahedrons, hemispheres, toroid and ellipsoid forms, occurring as single units or lattices.

Amina J. Mohammed, deputy secretary-general of the UN, said that with more than 800 million poor in the world, poverty reduction is a primary task in the 2030 Agenda for Sustainable Development.