Issue # 312 _ February 2022

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Cover

Fast lane from the lab to the public
The emerging field of implementation science seeks to accelerate the application of evidence-based knowledge By

 

COVID-19

The pandemic accelerates

High transmissibility of the Omicron variant reinforces the importance of vaccinating children, the last age group to be immunized

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COVID-19

The efficiency of masks

Tests reveal how and to what extent different types of masks limit the airborne spread of infectious diseases

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Ethics

Solutions for harassment

Brazilian universities establish policies to fight mischief and sexual violence

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Publications

Counting the costs

Study estimates publisher expenses and profit margins and reignites the debate over the fair price of publishing a scientific article

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Scientific communication

Language in decline

Study identifies a fall in the number of Brazilian scientific articles written in Portuguese

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Climate

The Amazon produces 8% of the planet's methane

Most of the gas emitted in the biome comes from wetlands, but the rise in livestock farming and fires has increased emissions associated with human occupation

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Geochemistry

Witnesses to a primitive Earth

Rocks found in Minas Gerais contain evidence of pockets of oxygen from 400 million years before the gas accumulated in the planet’s atmosphere

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Interview

Luiz Vitor de Souza Filho: High-energy ambassador

A Brazilian physicist from the University of São Paulo's São Carlos campus has been elected to chair the international scientific consortium building the world's largest gamma-ray observatory

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Ecology

Vaccinating primates against yellow fever

Early trials suggest human vaccines are effective in wild primate species susceptible to the yellow fever virus

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Archaeology

Lower sea, fewer shell mounds

Study suggests a reduction in the level of the Atlantic Ocean 2,200 years ago sparked the collapse of ancient peoples on the Brazilian coast

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Naval engineering

Robots on the high seas

Autonomous boat and drone used to monitor oil leaks at offshore oil platforms

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Public policy

Fluid identities

A new study estimates the number of transgender and nonbinary people in Brazil at 3 million

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Urban planning

More than just a city of monuments

Freshly discovered documents reveal alternative designs ultimately abandoned in the construction of Brasília and its surrounding towns

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