Issue # 202 _ December 2012

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Cover

On cats, photons and strange worlds
To understand the transition from the quantum world to the classical, Brazilian physicists measure the exchange of information between light particles and the environment By

S&T Policy

scientific journals

Telling a good story

Editors use a set of strategies to increase the impact and visibility of their publications

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innovation

Vigilant Leadership

Report proposes actions to strengthen the quality of US research universities

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Cooperation

Brazil on the horizon

Europeans seek partnerships for new program to support science and innovation

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Science

Paleontology

Hard of hearing, but a good head

African dinosaur was hard of hearing but had agile skull movement for self defense

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Chemistry

The brightly colored umbrellas of plants

A study of their molecular dynamics proves that natural color protects leaves from excessive light

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Biochemistry

Reinforced toxicity

More neurons are killed by using crack than by using cocaine

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HUMAN EVOLUTION

Traces of miscegenation

Human virus reflects migrations between various ethnic groups in the state of Pará

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Technology

ECOLOGY

Perfume from the Amazon

The use of leaves and branches increases rosewood oil production by 25%

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Energy

Cities of the Future

Smart grids bring together power sources and data, creating new possibilities for consumers

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COMPANY RESEARCH

More than just oil

BP concludes agreements to improve ethanol production and prepare for the second generation

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CONSTRUCTION

Resistant gypsum

New blocks made from by-products left over from fertilizer production are a low-cost option for home building

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Humanities

History

The patriarch of science

The ideas of José Bonifácio were marked by the close bond between statesman and naturalist

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Economics

Iron and fire

Pioneering experiences with iron at Fábrica Real de Ferro de Ipanema left lessons about bold approaches

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Humanities

Explaining, only to confuse

In the 1970s, MPB found different ways to re-create tropicalistic experimentation

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SCIENCE DISSEMINATION

Five decades of ecological conscience

Rachel Carson’s Silent Spring is 50 years old and remains an environmental literature classic

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