Science

COVID-19

The fatality conundrum

Difficulties identifying the exact number of people infected and killed make it hard to calculate how deadly the disease is

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Astrophysics

Where the “day” lasts half a minute

Brazilians discover the fastest white dwarf star, which completes one rotation on its axis in less than 30 seconds

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Biology

The faithful frog

Saxicolous frogs only reproduce with two or three specific females, behavior never before seen in amphibians

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Ecology

The advance of stagnant water

Dams, swamps, and wells proliferate in deforested areas of the Upper Xingu River Basin

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Cover

Scientific philanthropy boost

Pandemic drives donations from companies and individuals wishing to support COVID-19 research in Brazil

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Cover

The effects of COVID-19

The novel coronavirus can affect the lungs, heart, kidneys, pancreas, and brain, causing long-term damage after the acute phase of the disease has passed

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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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Cover

The puzzle of immunity

Crucial questions about the response of the immune system to the novel coronavirus remain unanswered

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Physics

How to create a skyrmion

Microscopic metal structures produced and controlled by short-lived magnetic pulses could be used to store data

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Neuroscience

Early deficit

People with Huntington's disease tend to produce fewer neurons since birth

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Ecology

Protecting the turtles

Combined use of sound recordings, aerial images, and environmental data improves monitoring of endangered Amazon species

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Environment

The return of deforestation

Official INPE figure says 10,129 km2 of the Amazon were deforested in 2019, the most since 2008

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Cover

The challenge of calculating R

Poor data makes the effective reproduction rate difficult to track and is hampering the pandemic response

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Cover

Difficult exit

Quarantine relaxation strategies differ around the country

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COVER

Standing alone

Brazilian vaccine projects race to begin clinical trials next year

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COVER

Saving time

Brazilian research centers negotiate deals to import vaccine production technology

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Covid-19

Looking for shortcuts

International teams use eight different techniques to create 150 COVID-19 vaccine candidates in six months

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Oil and gas engineering

Caverns for storing gases

New technology will allow deep-sea storage of the carbon dioxide and methane associated with oil extraction in pre-salt petroleum fields

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Environment

Biomes under attack

97% of the 12,000 square kilometers of land deforested in Brazil last year was in the Amazon and the Cerrado

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Atmospheric sciences 

Pizza soot

Pizzerias in São Paulo produce the equivalent of 9% of the fine particulate matter emitted by vehicles in the city’s Metropolitan Region

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Astronomy

Windows on the Milky Way

Regions of space with less gas and dust allow astronomers to observe stars on the other side of the galaxy

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Environment

Fire and biodiversity

Experiment suggests that small, controlled fires increase the number of plant species in the Cerrado without decreasing the number of animals

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Interview

Michael Boris Green: The tuner of strings

British physicist shares his role in the 1980s reformulation of a theory that aims to describe all that exists in the universe

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Pharmacology

Medicines from Cannabis

Based on its proven efficacy for epilepsy, cannabidiol has become the target of intensive research

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Public health

Novel coronavirus in Brazil

The new coronavirus that emerged in China has arrived in the country, where four other less dangerous types already circulate

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Pesquisa Fapesp 20 Years

Stories on the wing

Both living and extinct birds have been the subjects of various reports over 20 years of Pesquisa FAPESP

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Ecology

Winged invasion

In four decades, 35 alien bird species have colonized deforested areas on experimental properties in Brazil’s Amazon

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