Issue # 294 _ August 2020

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Cover

Times of uncertainty
Changes in our daily lives due to COVID-19 may aggravate emotional issues and mental disorders By
Health professionals under emotional stress
Depression rates for health professionals who care for COVID-19 patients have tripled By
The puzzle of immunity
Crucial questions about the response of the immune system to the novel coronavirus remain unanswered By
The risk of traveling by plane
The probability of catching a respiratory virus, such as the novel coronavirus, is high for those close to a contaminated passenger and low for those further away By
Varying investment in science
Most countries have increased public spending, but the amount invested in pandemic research differs By and
Sharing and expanding knowledge
Data sharing has grown amid the pandemic and perceived benefits can drive further growth By
Pandemics as allegory
Writers and artists use images of plague to portray tragic events and reflect on the human condition By
Research during quarantine
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Bibliometrics

Wider reach

Report on scientific journal impact factors shows Brazilian periodicals are improving

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Archaeology

30,000 years ago in the Americas

Mexican cave suggests humans may have arrived on the continent earlier than thought, reinforcing the importance of evidence from Brazilian sites

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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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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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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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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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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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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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Public Policy

Opening faucets

Research indicates that delays in providing sanitation in Brazil cause illness and are economically irrational

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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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