Issue # 211 _ September 2013

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Cover

The Araguainha greenhouse
Meteorite impact in Mato Grosso 250 million years ago may have released enough methane gas to cause global warming and trigger the largest known species extinction By
Meteorite in Piauí
The Santa Marta crater was created by a fallen celestial rock By

S&T Policy

Scientometrics

Comparative advantage

Article analyzes the paths traveled by science in Brazil and in South Korea and identifies opportunities for partnerships

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Collaboration

Partnership against obesity

Brazilian and German researchers work to find an effective drug to fight the disease

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FINANCING

An innovation deficit

The U.S. scientific community is suffering the effects of the sequestration of federal funds for research

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Scientific dissemination

The digital connection

World Conference of Science Journalists highlights the influence and skills of multimedia professionals

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Science

BIOCHEMICAL SCIENCE

When the guardian lets down its guard

A UFRJ team explains how a deformed version of a protein that protects DNA can lead to uncontrolled cancer cell multiplication

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CELL BIOLOGY

Metastatic RNA

A new study shows the role of a special type of ribonucleic acid in spreading cancer

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Parasitology

Health in the Emperor's day

Human remains reveal profile of diseases that afflicted various populations in 17th to 19th century Rio de Janeiro

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CLIMATE CHANGE

Coffee with more gas

Coffee plants grow bigger and produce more when there is more CO2 in the atmosphere

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SPECIAL BIOTA EDUCATION VI

On the razor’s edge

Remaining fragments of the Atlantic Forest, though degraded, harbor a great diversity of endemic species

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Physics

The power of collisions

Collisions between grains is the main driver of sandstorms

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Optics

Whirls of light

New technique alters light beam wavefront, allowing the manipulation of microscopic objects and the transmission of greater quantities of information

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Technology

Aviation

The flight of the Falcon

Military projects fuel a booming market for unmanned aircraft

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Industrial Research

Worldwide competence

Creation of innovative products makes Mahle’s Brazilian technology center stand out

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Computer engineering

Market logic

A small company develops artificial intelligence software to control industrial production

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Humanities

Aging

Politically correct eroticism

An anthropologist looks at the argument for a rewarding sex life in old age

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Philosophy

The passion for freedom

Study Center reveals the latest on Hannah Arendt’s thoughts about the responsibility of thinking

By