BACKGROUND The relationship between current concentrations of ambient air pollution and adverse health effects is controversial. We report a meteorological index of air stagnation that is associated with daily visits to the emergency department for asthma in two urban areas. METHODS Data on daily values of a stagnation persistence index and visits to the emergency department for asthma were c...

These shortages have been a perennial problem in emerging markets, where many of their economic perils and idiosyncrasies stem from this feature. But we are now seeing a shortage on a global scale. It probably began with the meltdown of a substantial share of Japanese assets in the early 1990s, it was exacerbated by European stagnation and the collective emerging market crises of the late 1990s...

This article concentrates on the effect of MHD heat mass transfer on the stagnation point nanofluid flow over a stretching or shrinking sheet with homogeneous-heterogeneous reactions. The flow analysis is disclosed in the neighborhood of stagnation point. Features of heat transport are characterized with Newtonian heating. The homogeneous-heterogeneous chemical reaction between the fluid and di...

The transition to sustainability will be difficult. Environmental sustainability entails living within the Earth’s limits, yet the majority of scientific studies indicate a condition of overshoot. For mainstream economists sustainability means perpetuating economic growth. Consequently, environmental and economic sustainability are incompatible in the present institutional context. This paper s...