Issue # 299 _ January 2021

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Cover

The economics of caregiving
Increase in population life expectancy and new family arrangements produce higher demand for caregivers and complicate government decision-making By
An expanding market
In Latin America, remunerated caregiving work accounts for 16% of jobs, with 47 million people working in the area By

 

COVID-19

Approval strategy

Amid uncertainty, São Paulo announces state vaccination plan

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COVID-19

Distribution challenges

Governments need to work with pharmaceutical and logistics companies to overcome obstacles to start the SARS-CoV-2 immunization campaign

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COVID-19

The era of genetic vaccines

The vaccines from BioNTech/Pfizer and Moderna result from historical investments in messenger RNA technology leading to the creation of new products

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COVID-19

The mutation risk

New strains of SARS-Cov-2, such as the one identified in the United Kingdom in December, could make the pathogen more transmissible and virulent

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Bibliometrics

Science with impact

List of researchers with highly cited works includes more Brazilians in 2020

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Scientific publications

The Plan S labyrinth

In effect since January 1, the open-access initiative reduces ambitions and faces uncertainty about its reach

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Paleontology

Pterosaur precursors

A new study suggests that a group of small extinct ground-dwelling vertebrates, called lagerpetids, were the closest relatives of these mysterious winged reptiles

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Archaeology

The interconnected peoples of ancient Amazon

Road networks connected villages as far as 10 km apart and interwove their cultures in pre-Columbian periods

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Botany

Tropical trees die sooner

Tropical species have average lifespans of 186 years, while temperate species live for an average 322 years, a study on 438 tree species shows

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Interview

Gustavo Turecki: Detective of the mind

Born in Argentina and educated in Brazil, a dedicated psychiatrist investigates the causes of suicide

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Oncology

Better chances with time

The risk of rectal cancer recurrence is less than 5% for patients who have been tumor-free for three years after nonsurgical treatment with radiation therapy and chemotherapy

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Astrophysics

Persistent connection

International team captures unexpected simultaneous creation of star and planet in system continuously sustained by cloud of gas

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Crop science

Soil genetics

New mineral mapping technique can help farmers save on farm inputs and minimize environmental impacts

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Aeronautical engineering

The Atobá takes flight

Rio-based firm successfully develops large-sized unmanned aircraft for defense and security missions

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Audiovisual

Women’s cinema

Studies investigate the role of women in film productions; in Brazil, only 15% of films were directed by women from 2001 to 2010

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Archival science

Behind the scenes of science

Classified as documents, notebooks describing early research can serve as a source of reference for further studies

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