Marcos Pivetta

Physics

Carbon in drops

Nanotubes form in a process that reminds one of dew production

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Interview

Diógenes de Almeida Campos: Official stones and bones

Paleontologist affirms that Brazil could be as important as China and criticizes fossil contraband

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Cover

Genetic Crossroads

The low DNA diversity is challenging the preservation of the sloth

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Archeology

Rediscovering the New World

Prehistoric human bones suggest that the first Americans were not Mongoloids

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Ecology

Shadows over the forest

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

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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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Genomics

On the trail of a vaccine

Brazilians sequence the genome of the bacterium that causes leptospirosis

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Cover

The quantum leap of Brazilian science

National research goes professional, incorporating group work and improving its world ranking

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Interview

Ruth e Victor Nussenzweig: A chemistry that worked out

The couple talks about the advances in the search for vaccines against malaria and of the life of a scientist, here and in the United States

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Statistical Physics

The little homeland in soccer shoes

Only three degrees of separation are interposed between all Brazilian players

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Cover

Illustrated Prehistory

Paintings and engravings reveal the diversity of Brazilian rock art

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Cover

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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Cover

The quantum leap of Brazilian science

National research goes professional and improving its world ranking

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Cover

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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