Marcos Pivetta and Ricardo Zorzetto

Interview

The enigma of pluripotency

Controlling the differentiation process of human embryonic stem cells

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Brazilian biomes

Controversial mammals

Study challenges origin of animals from cerrado and caatinga

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Computational Modeling

The defeat of the highlanders

Growing old can be an adaptive advantage

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Obesity and cancer

A more selective attack

New drugs may be a selective way of treating tumors

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Center of the galaxy

An X-ray lamp

Gas disk around a black hole lights up every seven days

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Fossils

The hoatzin’s long journey

Origins of the Amazonian bird that “ruminates”

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Archeology

Luzio’s diet

Prehistoric man lived on river banks, but he rarely ate fish

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Astrophysics

An X in the Milky Way?

The center of the galaxy might have two crisscrossing bars

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Archeometry

Hidden paintings

Diagnosis brings to light hidden details of paintings and works of art

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Physics

Rather similar

Neutrinos and antineutrinos actually seem to have the same mass

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Archaeology

The culture of geoglyphs

Enormous circles and squares were excavated in the ground in the Amazon

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History

The Sun stones

Blocks of granite carved in Amapá are aligned with the path of a star

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Cover

Like our parents

New study increases the controversy over man’s arrival in the Americas

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Nutrition

Chickens along the River Solimões

River dwellers change a diet of fish with manioc flour for frozen poultry

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Paleontology

A prehistoric tapir

Amazonia may have harbored a now extinct species 40,000 years ago

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Physics

Graphene in the new electronics

Material might form the basis of a hypothetical quantum nanotransistor

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Cover

The weakness of stem cells

A possible cause of poor results in treating Parkinson’s disease

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Globalization

In English, per favore

Italian universities create courses in English to win over students from abroad

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Geochemistry

Pre-Columbian fertilizers

Ancient Indians contributed to the fertility of black soil

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Astrophysics

A mirrored black hole

Cone of ions reflects image of mysterious object at the center of the galaxy

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Physics

The entanglement formula

A reduction in the quantum phenomenon due to environmental influence

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Cover

Like our parents

New study increases controversy concerning man's arrival in America

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Biotechnology

The protection of spheres

Using microcapsules could become driving force for treating diabetes

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Astrophysics

A slight flicker

Survey finds 900 new magnetic white dwarfs, a rare type of star

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Astrophysics

The Milky Way revisited

The galaxy's arms may be closer and not as spiral-shaped as had been thought

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Paleontology

Late Extinction

Terror bird disappeared before the arrival of humans in the Americas

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Geology

Islands in the Savannah

"Blotches" in the cerrado emerged in ancient riverbeds in the Amazon

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Astrophysics

On a safe course

Simulation explains why the Earth did not collide with the Sun

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Genetics

The mystery about Ringo and Suflair

Dogs may have genes that protect them from muscular dystrophy

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Astrophysics

Gravitational kick

Fusion of galaxies expels black hole from its nucleus

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