International issue | September 2007

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Cover

What are we good at?: Studies indicate 11 areas of knowledge in which Brazilian research shines throughout the world

S&T Policy

papers

Increased vitality

Academic production hits new highs in the country, although its impact is not yet very expressive

Science

psychiatry

Magnetism against depression

An experimental technique shows itself to be efficient in the treatment of severe psychiatric disorders

Neuroscience

Connection without frontiers

Cutting edge experiments with the brain travel from Duke University to Natal, along with the will to help science transform needy communities

Medicine

A risky bet against diabetes

Experimental treatment with chemotherapy and stem cells rids 14 patients of insulin injections

malaria

Master in disguise

Genetic variability makes it possible for the Plasmodium to bypass the defenses of the human organism

Pharmacology

The cellular postman

Protein from the rattlesnake’s poison penetrates cells in the process of dividing and shows potential as a conveyor of medication and as an anti-tumoral agent

Climate Change

Green winds

Stimulating production can be coupled with carbon credits, in order to avoid economic stagnation

Physics

How metals dance

Observed for the first time on the smallest scale possible, an alloy of gold and silver reveals unexpected behavior in atoms

Technology

Optics

The LED revolution

Researchers form São Carlos develop equipment with light emitting diodes

ELECTRONIC ENGINEERING

Constant innovation

Electronic voting machines with a digital identifier start being used in the 2008 municipal elections

ELECTRONIC ENGINEERING

Digital recognition

System developed by Griaule is amongst the best in the world

ENERGY

Biodiesel on the way up

What is missing for this oil to establish itself as a national biofuel

NANOTECHNOLOGY

Multiple uses

Nano-structured resins function as bactericides and fungicides in washing machines and mattresses

Humanities

Sociology

The joyful dictatorship

Intellectuals defend changes to save Bahia’s most traditional celebration: Carnival

iconography

Portrait in black and white

Image of the Brazilian Negro was forged with the arrival of photography in the 19th century

History

The citizen who smelled like a king

Profiles show that Pedro II was more interested in the essence than the appearance of power