Snail genome duplication offers look at evolution in transition

A tiny freshwater snail from New Zealand is giving scientists a glimpse into evolution in motion. University of Iowa ...
IEEE

Mitigating Radiation Pattern Ripples Due to Edge Diffraction in Central Element of a Large Array Using Top Hat Loaded High Impedance Surface

Abstract: Edge diffraction has been identified as one of the potential causes that downgrade the radiation characteristics in an antenna array, when the ground size is increased to incorporate ...
The New York Times

The U.S. Struggles to Break Out From China’s Grip on Rare Earths

The Trump administration is trying an array of unconventional measures to shore up U.S. rare earths supplies. It remains uncertain whether the strategy will work. By Ana Swanson Ana Swanson, who ...