International issue | January 2013

Cover

Opening up the Earth: Physicists detail the structures and transformations of minerals in regions deep inside the planet By Carlos Fioravanti

Studies show that the structure of BRIC scientific communities increasingly resembles the structure of scientific disciplines in developed countries

State expenditures on research and development reveal the gap between São Paulo and the other Brazilian states

International awards, such as the one granted to Fernando Henrique Cardoso, enhance the reputation of Brazil’s scientific community

Crises of depression and euphoria cause chemical imbalances that may damage cells and accelerate aging of the body

The combined use of stem cells and a growth factor reduces disease symptoms in mice

Vale celebrates its 70th anniversary by investing in long-term projects with a focus on mining and sustainable development

Brazilians discover a new family of materials that conduct electricity without losing energy

Emissions of the most hazardous greenhouse gas from sugarcane plantations are lower than previously estimated

Brazilian researchers discover alchemical powder in an archive at the Royal Society, the seat of the scientific revolution

The idea of Brazil on the Security Council, seen as a “whim” by analysts, came from the United States