Introduction. RSA is a powerful research technique that is currently being studied at Hospital for Special Surgery (HSS) for joint replacement patients. RSA stands for r adio s tereometric a nalysis, which describes a special way of taking two x-rays from different directions at the same time, creating a âstereoâ image.SA has been used for over 30 years in Europe and for 5 years at Hospital for Special Surgery. The only potential risks come from implantation of the marker beads. 1  The insertion of beads takes an additional 5 to 10 minutes of surgery.
They're right not to â in the mid 19th century Brussels was a mainly Dutch-speaking city. There's been a major swing towards French since, fueled not just by migration, but also by families switching language. Even so, it was only really by the 1950s that Dutch had definitively lost its role as the city's vernacular.
The Kingdom of Belgium has three official languages: Dutch, French, and German. A number of non-official, minority languages and dialects are spoken as well. English is widely spoken throughout Belgium as a second or third language by native Belgians, and is sometimes used as a lingua franca in Brussels.f those under the age of forty, 59% in Flanders declared that they could speak all three, along with 10% in Wallonia and 28% in Brussels. In each region, Belgium's third official language, German, is notably less known than those.