International issue | December 2018

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Cover

The monkey alarm: Even in cities where yellow fever is controlled by vaccination, the infection is decimating populations of wild primates whose deaths indicate areas where the virus is transmitted
From monkeys to people: A Fiocruz team suggests a sixth form of malaria that is transmitted by mosquitoes infected after biting wild primates in the Atlantic Forest

S&T Policy

Education

New doorways to college

Developments in affirmative action add diversity to university admission pathways

SCIENTOMETRICS

The metropolis and science

Study analyzes papers by authors from 2,000 cities around the world and ranks São Paulo among the 20 with the highest scientific output

Science

ETHOLOGY

Primate culture

Transmission of tool-use practices among capuchin monkeys helps redefine the role of traditions in evolution

Biology

The chemical language of insects

Within colonies, bees and ants recognize each other and organize themselves through compounds that cover their bodies

ASTRONOMY

The rocks that remained

An alternative model suggests that the asteroid belt originated from leftovers from the formation of the planets in the solar system

Astronomy

Devouring stars

According to a survey, the Milky Way cannibalized eleven neighboring galaxies

PHYSICS

The effects of quantum turbulence

Disturbing a cloud of cold rubidium atoms produces a wave phenomenon similar to light

Physics

Heated up by the cold

Cold particles transfer heat to hotter ones in a quantum experiment, thereby reversing the thermodynamic arrow of time

GEOLOGY

China and Brazil may once have been neighbors

Graphite-rich rocks suggest that areas of both countries, as well as Africa, were joined together nearly 2 billion years ago

Technology

PAPER INDUSTRY

Paper from cane fiber and leaves

Companies use sugarcane waste to produce printer paper and packaging

PALEONTOLOGY

Fossils on the move

3D reconstructions highlight new characteristics of crocodiles and dinosaurs that lived millions of years ago in Brazil

Humanities

ARCHAEOLOGY

Occupation of primordial “Brazil”

Evidence suggests that hunter-gatherers inhabited all major regions of Brazil roughly 10,000 years ago

INTERVIEW

Elza Salvatori Berquó: A pioneering spirit in demography

Researcher who revealed the changes in Brazilian reproductive behavior wants to know more about youth

MUSEOLOGY

The uncertain fate of police museum collections

Researchers defend the preservation of collections, while social movements and relatives demand the removal of objects and bodily remains