writes "The Economist has a story on the increasing scientific productivity of countries like China, India, and Brazil relative to the field's old guards in America, Europe, and Japan. Scientific productivity in this sense includes percent of GDP spent on R&D and the overall numbers of researchers, scholarly articles, and patents that a country produces. The article notes increasing levels of international collaboration on scholarly scientific articles in leading journals. From the article: '[M]ore than 35% of articles in leading journals are now the product of international collaboration. That is up from 25% 15 years ago — something the old regime and the new alike can celebrate.'"
Note that the "old guard" are still firmly in the lead on these measures of scientific prowess, but the growth rate is higher in the newcomer states.