Abstract: Ultra massive multiple-input-multiple-output(UM-MIMO) technology has emerged as a promising candidate for 6G networks, offering ultra-high spectral efficiency in wireless systems. The ...

Abstract: A grid of orthogonal beams with zero column coherence can be easily constructed to cover all prospective user equipments (UEs) in the far-field region of a multiple-antenna base station (BS) ...

Scientists are solving the mystery of when diverged from their closest relative–the brown bear. By Laura Baisas Published Sep 15, 2024 8:00 PM EDT Deposit Photos Get the Popular Science daily ...

Researchers tracking wild polar bears in northern Canada have witnessed something exceedingly rare: a mother bear adopting a cub that was not biologically her own. The five-year-old mother bear and ...

With snow on the ground and still breezy, temperatures along the Interstate 95 corridor may feel more like the teens into early morning, with wind chills in New England possibly dropping into single ...

Millions have seen the heart-wrenching video of a polar bear clinging to life, its white hair limply covering its thin, bony frame. Shot by Paul Nicklen and Cristina Mittermeier of the nonprofit group ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. This story was originally published by the Guardian and is reproduced here as part of ...

With climate change steadily dismantling the icy habitat essential to their existence, new research suggests polar bears are rapidly rewiring their own genetics in a bid to survive. The species is ...

This study was funded by grants from the Natural Environment Research Council (NE/S011188/1) and the European Research Council (SELECTHAPLOID - 101001341) The Arctic Ocean current is at its warmest in ...

The world’s polar bear population is projected to decline by two-thirds by 2050. A new study from the University of East Anglia suggests that polar bears are undergoing rapid genetic changes, and ...