Printed
Materials engineering
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Beautiful, smooth and impermeable
Company develops a material that substitutes granite, marble and steel
Retrospect
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Driven by passions
José Leite Lopes, who died at the age of 87, leaves a vast range of accomplishments
Letter from the editor | 125
Under the sign of change
Under the sign of change
Virology
Men in the spotlight
Masculine sexual health helps to contain a virus linked to uterus cancer
Ecology
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Invisible communities
The surface of a single leaf can house more than 600 species of bacteria
Paleontology
The South American super wetlands
Water logged flatlands occupied one third of South America
Interview
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Emilio Moran: A world in change
MIGUEL BOYAYANWhen he talks about global climatic changes, anthropologist Emilio Moran seems capable of catching the attention of even the most skeptical of the anti-environmentalists. Perhaps because, instead of only detaining himself on numbers – whether of animal and plant species in the process of extinction, or of more or less degrees Celsius of the... View Article
By Fabrício Marques and Mariluce Moura
Political Science
Separated at birth
PT and PSDB seem destined to follow different paths
By Carlos Haag
History
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Blood and sand
To study the ancient gladiators helps in understanding our current society
By Carlos Haag
Public policies
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A monitored stroll in the park
A new system evaluates and guards against environmental impact in parks
Metallurgy
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Knowledge & opportunity
Company uses metallic powders for the production of industrial filters
Retrospect
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The Alienist
Juliano Moreira was the first to publicize Freud in Brazil and to transform psychiatry into a medical specialty
Cover
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The wrong choice
Unnecessary cesarean sections places the lives of the mother and baby at risk
Letter from the editor | 124
Defending the natural birth pattway
Defending the natural birth pattway
Biology
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Music in the marshes
Frogs, toads and tree frogs exhibit 70 calls and 29 of sexual reproduction
Geology
Mountains of history
Rocks tells about the formation of Brazil and the movements of the earth crust
José Sebastião Witter
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José Sebastião Witter: A life in the classroom
A life in the classroom