Current research efforts to understand the relative invasibility of different plant communities have mostly ignored tropical forests. Only a few studies have treated invasive species in tropical forests, and recent worldwide analyses have not provided clear predictions concerning the relative invasibility of tropical forests. In this review, the extent to which exotic species have invaded tropi...

Although chickenpox is a generally mild, self-limited illness of children, it can cause fatal disease in adults. Accumulating reports from tropical countries showed a high prevalence of seronegativity among the adults, implying that varicella diseases could become a heavy burden in tropical countries. However, in the situation of humanitarian emergencies in tropical areas, chickenpox has largel...

Agents interacting in a dynamically changing spatial environment often need to access the same spatial resources. A typical example is given by moving vehicles that meet at an intersection in a street network. In such situations right-of-way rules regulate the actions the vehicles involved may perform. For this application scenario we show how the Golog framework for reasoning about action and ...

Of the many causes of ill-health among children of the tropics malnutrition is undoubtedly the most important. Apart from its direct effects on health, malnutrition also exerts an indirect effect by diminishing resistance to infecious diseases. The infant and child mortality rates in tropical countries are high. In India, according to the latest census figures, while infants and children under ...

Dengue virus is considered one of the most important re-emergent viruses. It threatens roughly one third of the world’s population, with more than 50 million cases reported each year in tropical and sub-tropical regions. Dengue re-emergency is caused by multiple environmental, social and economic factors, as well as by governmental health policies. Generally, poverty and inequality, existing in...