Highlights

Retrospect

War on the plague

Doctors and public authorities acted quickly against a bubonic plague outbreak in Santos in 1899

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Archival science

Not to be forgotten

After 16 years cataloging collections and tracking down missing documentary heritage, Brazil’s national committee for the Memory of the World program was suspended in 2019

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Public Policy

Opening faucets

Lack of basic sanitation in Brazil damages public health and the economy

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Genomics

Disease-immune orange trees

New cultivars developed at the Campinas Agronomic Institute using tangerine genes show resistance to citrus variegated chlorosis

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Biotechnology

Biotech mining

Use of bacteria for processing ore from gold deposit in Mato Grosso could reduce environmental risk and costs of operation

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Algorithms

Artificial intelligence to help the heart

New computer software could improve the speed and efficiency of heart-disease diagnosis and treatment

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Biology

A dose of Darwin in taxonomy

New method of classifying living organisms favors evolutionary history and abandons the divisions of the Linnaean system

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Paleontology

The oldest scorpion in South America

260-million-year-old arthropod fossil found in sedimentary rocks at the side of the road in the state of Santa Catarina

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Genetics

Like those before

The first native peoples of the Americas had similar physical traits to current indigenous populations: brown eyes, black hair, and dark skin

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Archaeology

30,000 years ago in the Americas

Mexican site suggests settlement of the Americas began 30,000 years ago

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Bibliometrics

Wider reach

Report on scientific journal impact factors shows Brazilian periodicals are improving

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Interview

A builder of startups

Computer scientist Nivio Ziviani, from Minas Gerais, has founded five startups and sold one to Google

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COVER

Pandemics as allegory

Writers and artists use images of plague to portray tragic events and reflect on the human condition

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COVER

Sharing and expanding knowledge

Data sharing has grown amid the pandemic and perceived benefits can drive further growth

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COVER

Varying investment in science

Countries increase spending on COVID-19, but levels of investment in research vary

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