Issue # 294 _ August 2020
Cover
- Times of uncertainty
- Changes in our daily lives due to COVID-19 may aggravate emotional issues and mental disorders By Ricardo Zorzetto
- Health professionals under emotional stress
- Depression rates for health professionals who care for COVID-19 patients have tripled By Carlos Fioravanti
- The puzzle of immunity
- Crucial questions about the response of the immune system to the novel coronavirus remain unanswered By Frances Jones
- 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 Domingos Zaparolli
- Varying investment in science
- Most countries have increased public spending, but the amount invested in pandemic research differs By Fabrício Marques and Rodrigo de Oliveira Andrade
- Sharing and expanding knowledge
- Data sharing has grown amid the pandemic and perceived benefits can drive further growth By Rodrigo de Oliveira Andrade
- Pandemics as allegory
- Writers and artists use images of plague to portray tragic events and reflect on the human condition By Christina Queiroz
- Research during quarantine
- By Redação
Bibliometrics

Wider reach
Report on scientific journal impact factors shows Brazilian periodicals are improving
By Fabrício MarquesArchaeology

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
By Marcos PivettaGenetics

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
By Frances JonesPaleontology

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
By Eduardo GeraqueBiology

A dose of Darwin in taxonomy
New method of classifying living organisms favors evolutionary history and abandons the divisions of the Linnaean system
By Marcos PivettaAlgorithms

Artificial intelligence to help the heart
New computer software could improve the speed and efficiency of heart-disease diagnosis and treatment
By Suzel TunesBiotechnology

Biotech mining
Use of bacteria for processing ore from gold deposit in Mato Grosso could reduce environmental risk and costs of operation
By Domingos ZaparolliGenomics

Disease-immune orange trees
New cultivars developed at the Campinas Agronomic Institute using tangerine genes show resistance to citrus variegated chlorosis
By Sarah Schmidt