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The Fund seeks to track the investment results of the Dow Jones US Select Aerospace & Defense Index composed of US equities in the aerospace and defense sector. The Fund generally invests at least 90% ...

Abstract: Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal propagation in wireless networks. By smartly tuning the signal reflection via a large number of ...

Our museums, education, and research centers work at intersections that spark imagination and encourage discovery—between art and the environment, space exploration and women’s history, cultural ...