The complex problem which confronts us in the world's rangelands -is the need to raise living standards, increase economic productivity, and at the same time reduce ecological stress -is approached in this symposium from a number of different disciplinary points of view. The case material presented in the papers shows (in varying degrees) the significance of the accumulated experience and cultu...

Tobacco consumption is increasing in developing countries, which will bear the brunt of the tobacco epidemic in the 21st century. If current smoking patterns continue, 7 of the world's 10 million annual deaths from tobacco in 2025 will occur in developing countries. Compared with developed countries, more men and fewer women currently smoke in developing countries, but smoking among girls and w...

BACKGROUND Until now, little was known about the variation in incidence of twin births across developing countries, because national representative data was lacking. This study provides the first comprehensive overview of national twinning rates across the developing world on the basis of reliable survey data. METHODS Data on incidence of twinning was extracted from birth histories of women a...

N anotechnology can be harnessed to address some of the world's most critical development problems. However, to our knowledge, there has been no systematic prioritization of applications of nanotechnology targeted toward these challenges faced by the 5 billion people living in the developing world. In this article, we aim to convey three key messages. First, we show that developing countries ar...

BACKGROUND Hemoptysis is a significant clinical presentation in respiratory medicine. Often a life threatening emergency, it mandates prompt assessment and intervention. Various investigations and management protocols are proposed globally, to advocate a standardized approach towards patients presenting with hemoptysis. It is the etiology, however, that has been known to influence clinical outc...

A s scientists and engineers engaged in nanotechnology and materials science, we are trained to examine highly complex problems and consider how our understanding can be applied toward a solution. We generally focus on intricate details of a fairly narrow and highly defined realm within chemistry, physics, materials, or other fields. However, it can also be extremely rewarding to apply these sk...