A cocrystal structure of the enzyme that synthesizes selenocysteine reveals the elegantly simple recognition mechanism for the tRNA molecule for this '21 st amino acid'. The structure resolves ...

It has been three years since Russia's full-scale invasion of Ukraine, and the conflict has had a profound effect on the Russian weapons industry, causing its arms exports to plummet. The ...

The World’s Largest Arm Importers 2020-2024: Ukraine has emerged as the leading global arms importer, accounting for 8.8% of total arms imports during the period from 2020 to 2024, according to the ...

U.S. dominates global arms exports, SIPRI says Ukraine was biggest arms importer in 2020-24 European arms imports surged in the same period STOCKHOLM, March 10 (Reuters) - European arms imports ...

Over the course of evolution, many proteins have undergone adaptive structural changes to meet the increasing homeostatic regulatory demands of multicellularity. Aminoacyl tRNA synthetases (aaRS), ...

A child with a rare genetic disorder — spinal muscular atrophy type I — was treated prenatally for the first time. Courtesy of Jakob Owens  via Unsplash During an amniocentesis test, a long, thin ...

Strong, toned arms do more than just look good and boost your confidence. There are also key health benefits that come from working out your arm muscles. Stronger arms and shoulders could help ...

Trump revokes Biden-era policy, prompted by Israel’s Gaza war, restricting US arms sales over human rights concerns. The order, signed by Trump's predecessor Joe Biden amid concerns over Israel ...

In the past five years — which cover Russia’s 2022 invasion of Ukraine on the European Union’s doorstep — American-made weapons accounted for almost two-thirds of the arms imported by ...

I’ve created this simple three-move workout to help you perfect your form on some of the basics—these are really the only arms moves you need as a beginner. So grab a pair of dumbbells (I would ...