Printed

Photonics

Light in the right dose

New generation of optical fibers brings novelties to medicine

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Materials Engineering

State of resistance

Use of plasma expands the useful life of prostheses and industrial tools

Biotechnology

Secrets of sweetness

Study intends to identify the genes responsible for the sucrose in cane

biology

In the rivers of Brazil

Biologists register 2,122 species of fish in the fresh water rivers of Brazil

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Genetics

A natural advantage against the cigarette

Almost 40% of Brazilian possess mutations that favor smoking less

Biochemistry

Form and function

New equipment place the country in the front line of the study of proteins

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physics

Another way of looking at atomic fusion

Experiment redefines knowledge concerning the interaction of nuclei

Retrospect

A sage in the jungle

A century and a half ago, Fritz Müller, one of the world's great naturalists, arrived in Brazil - to stay

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Cover

Illustrated Prehistory

Paintings and engravings reveal the diversity of Brazilian rock art

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Letter from the editor | 105

Visions of our past

Visions of our past

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Interview

Roberto Figueira Santos: Observations of an engaged spectator

Observations of an engaged spectator

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Literature

Traveling companion

Study discusses reasons for venturing into Brazilian novels

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Communication

Our daily drama

Study proposes that journalism is the main contemporary narrative

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publication

Showcase of Iberian American science

The SciELO Network is considered a model for free access to on-line articles

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disclosure

The knowledge adventure

More than 1,800 events mark the National Science and Technology Week

biosecurity

One more round

Senate authorizes research with stem cells and restores powers of the CTNBio

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scholarships

Reinforces support

The New Frontiers Program will expand traineeships abroad

innovation

At the market doorway

Companies supported by PIPE will have Finep to consolidate business

homage

Tireless engagement

Carolina Bori defended essential banners for the democratization of science

Reviews

A majestic marquis

A majestic marquis

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Pharmacology

Protection for the skin

Extract from the Pariparoba exercises antioxidant action against the sun

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metallurgy

Metallic recycling

Scrap is transformed into the raw material used to produce aluminum alloys

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Agriculture

A seed to germinate

A new variety of pale-skinned and drought resistant peanut

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chemistry

Marking traits

Lead for pencils and propelling pencils gain more resistance with nanocompound

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Retrospect

The history of a brand

How Gurgel managed to make totally Brazilian cars

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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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Letter from the editor | 104

Between celebrating and narrating

Between celebrating and narrating

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Physics

Versatile Minds

Physicists help to solve problems in different areas

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Genetics

One mutation, three diseases

Same alteration in a gene can cause three different pathologies

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genomic

Fertile deserts

Researcher identifies functional sequences of DNA in genome

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