Marcos Pivetta

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Other stars, other worlds

Planets outside the solar system heat up the race for finding more Earths

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Gilberto De Nucci

Gilberto De Nucci: The medicine radical

The medicine radical

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The quantum leap of Brazilian science

National research goes professional and improving its world ranking

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Cancer, divided hopes

Cancer is still a challenge for science

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Interview

Iván Izquierdo: Recollections and omissions

Neuroscientist talks about the importance of memories and also of forgetting

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neuroscience

The brain in action

Experiment suggests that the activity of neurons could move prostheses

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Cover

Weighty Extinction

Theory proposes that excessive rainfall eliminated mammals in South America

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Pharmacology

Iron against tuberculosis

A metallic compound kills Koch’s bacillus with fewer side effects

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Biosafety

The news from the East

South Koreans extract stem cells from a human embryo and reopen polemic

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Archeology

Rediscovering the New World

Ten sets of human bones from Brazilian prehistory suggest that the first inhabitants of the Americas were not Mongoloids

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Interview

Mayana Zatz: One eye on reason, the other on the heart

One eye on reason, the other on the heart

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environment

A stranger in the glaciers of the south

Crab from the Arctic is the first invading marine species found in Antarctica

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Astrophysics

Holes in the Cosmos

Black holes may be present in all the galaxies

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PALEOBOTANY

The flora that came in from the cold

São Paulo shelters fossils of plants that grew alongside glaciers

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Ecology

Investment in water

Petrobras invests in environmental preservation projects on the theme of water

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Food

Ethylic Pranks

Analyses of carbon atoms reveal adulterations in alcoholic beverages

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paleontology

Wings from the past

Fossils reconstitute the prehistory of winged beings in Brazil

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Schistosoma mansoni

Inside the parasite

Identification of genes gains international prominence

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Cover

The light that the white man put out

Brazil had complex societies before the arrival of the Europeans

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Echoes of separation

Mother's absence in the days after birth causes infertility in animals

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ecology

Fleeting encounters

The survival of trees depend on tiny insects and pollinating birds

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agronomy

Water, sun and wine

Brazilian model classifies a hundred wine producing regions in 30 countries

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Cover

Laptop Players

Institute researches experimental ways of composing and playing

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Genomics

On the trail of a vaccine

Brazilians sequence the genome of the bacterium that causes leptospirosis

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Portraits of nightfall

The elderly of São Paulo were manual laborers and have little schooling

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Genetics

The silence of the genes

Technique deactivates stretches of DNA and blocks production of protein in bees

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Shadows over the forest

Clouds of smoke from forest clearing fires cool down the Amazon forest

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citriculture

Risk of heart attack in the orange groves

Citrus sudden death threatens production and challenges researchers

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Paleobotany

When pine trees were dwarfs

Fossils of old araucarias attest to the transition of this species

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Botany

Long life for pernambuco wood

Seeds of the plant are preserved for six times more than used to be thought

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