Meta is giving Instagram users a rare glimpse into why certain posts are showing up on their Reels, the platform’s feed of algorithmically curated videos. Starting today, users will now see a list of ...

Cytotoxic T-lymphocyte antigen 4 (CTLA4) is a co-receptor expressed by activated, memory T cells and regulatory T cells 1,2,3,4,5,6. It is a homodimer that can bind to the homodimeric ligands CD80 ...

It's never a good time to see your starting quarterback get knocked out of a game and his status then in doubt with a playoff berth at stake. And it's especially not a good sign to see his reliable ...