Issue # 152 _ October 2008

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Cover

Electronic political platform
Contrary to myth, free advertising time works and helps voters By

S&T Policy

Diffusion

The specter of genius

Exhibition on the life and contributions of Albert Einstein, the scientist who is one of the major symbols of the 20th century.

Medical drugs

Creative copies

Preparing molecules that simulate others could facilitate the search for truly original pharmaceutical products

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Planning

The USP of the future

University discusses strategies to maintain excellence in its 100th anniversary, 25 years from now

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Migration

Talent in transit

Studies have shown that the circulation of brains can provide benefits to developing countries

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Science

Evolution

One mold and many forms

Expression of the same gene in distinct tissues or at different moments has contributed to the biological diversity of the species

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Physics

LHC is cool

Particles accelerator gets media exposure, but incident stops work until 2009

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Meteorology

Lightning in the pampas

Rare and dangerous, positive rays of lightning occur five times more frequently in the western part of the State of Rio Grande do Sul than they do in other regions of Brazil

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Botany

Time-related gears

Brazilian and British biologists provide details of the composition and functioning of the biological clocks of plants

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Immunology

Unexpected allies

Without bacteria, mammals do not produce the necessary inflammatory reaction to deal with injuries

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Technology

Agronomy

Dynamic sterilization

Equipment developed by Fungibras stimulates the mushroom-growing process.

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Conservation

Preservation made to order

Sensor monitors corrosion process that historical organs in churches and works of art in museums are submitted to

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Chemistry

Difficult decomposition

Study shows that oxybiodegradable plastics do not decompose in the wild as expected

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Petroleum Industry

Marine challenges

Exploiting oil and gas beneath the sea's salt layer creates demand for knowledge and technology

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Humanities

Anthropology

Amazonia lost and found

Scientists discover that the first inhabitants established civilizations that were organized and complex

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History

A "Redeemer" in search of redemption

The controversial "policy from the heart" of Princess Isabel

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