Issue # 125 _ July 2006
S&T Policy
Public policies
A monitored stroll in the park
A new system evaluates and guards against environmental impact in parks
Science
Ecology
Invisible communities
The surface of a single leaf can house more than 600 species of bacteria
By Carlos FioravantiPaleontology
The South American super wetlands
Some 10 million years ago water logged flatlands occupied one third of South America
By Ricardo ZorzettoZoology
Wild life in the Metropolis
The city of Sao Paulo houses 433 species of wild animals, from thrushes to red howler monkeys
By Ricardo ZorzettoNutrition
Diet on the tips of the fingers
An analysis of nails shows how nutrition can vary
By Maria Guimarães
Technology
Chemistry
Diet capsule
Animal feeding monitored by an inert chemical substance brings benefits to cattle rearing
By Marcos de OliveiraEducation
Fun approach
Schools and cities adopt software for children with special learning difficulties
By Dinorah ErenoMetallurgy
Knowledge & opportunity
Researchers set up a company that uses metallic powders for the production of industrial filters
By Yuri VasconcelosGenectics
Vegetable intelligence
Genetically modified sugarcane has insecticide property only when attacked by an insect
By Dinorah ErenoHumanities
Economy
Good chinese business
The Asian country could take the place that Brazil had saved for itself in the globalized world
By Gonçalo Júnior