The United States, Russia, Ukraine and the European Union have called for an immediate halt to violence in Ukraine after talks in Geneva. But as Sonia Legg reports the prospect of further sanctions is being clouded by divisions within Europe and big companies.
Micro-organs to shape the future of personalised medicine
Researchers at Vanderbilt University are developing an artificial liver as part of a larger system of synthetic organs being built to test drugs. If successful, the technology will not only change the way drugs are developed and tested, but also provide doctors with a way to personalise treatment for patients with diseases ranging from heart disease to cancer. Ben Gruber has more
Marvel Studios presents "Marvel Avengers Assemble"-the Super Hero team up of a lifetime, featuring iconic Marvel Super Heroes Iron Man, The Incredible Hulk, Thor, Captain America, Hawkeye and Black Widow. When an unexpected enemy emerges that threatens global safety and security, Nick Fury, Director of the international peacekeeping agency known as S.H.I.E.L.D., finds himself in need of a team to pull the world back from the brink of disaster. Spanning the globe, a daring recruitment effort begins.