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.
There are three linguistic communities-French, Flemish and German in Belgium and three regions-Brussels-Capital, the Flemish Region and the Walloon Region. The country is further divided into 10 provinces and 589 municipalities.The territory of Brussels-Capital Region is bilingual, French/Dutch.The Flemish Region is officially Dutch speaking. The Walloon Region encompasses French-speaking territory and the German-speaking cantons.he country is further divided into 10 provinces and 589 municipalities. The territory of Brussels-Capital Region is bilingual, French/Dutch. The Flemish Region is officially Dutch speaking. The Walloon Region encompasses French-speaking territory and the German-speaking cantons.