Science

COVER

Shaped by floods and fires

Water, and to a lesser extent, fire, influence flora distribution and diversity in the Pantanal

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COVER

The Pantanal pleads for rain

Record fires destroy a quarter of the world’s largest floodplain and worsen the impacts of a prolonged drought

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COVID-19

Limited transmission

Studies suggest that children and adolescents do not spread SARS-CoV-2 any more than adults

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COVID-19

The mystery of reinfections

Evidence that SARS-CoV-2 can infect the same person more than once is challenging our understanding of the virus and how we combat the disease

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COVID-19

Stuttering progress

Advanced testing of COVID-19 vaccines continues at an accelerated pace, despite occasional interruptions caused by safety concerns

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COVID-19

Global pandemic tactics

With a wide range of strategies adopted to slow the spread of the disease, some countries have fared better than others

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Physics

Light-based circuits

New material made of gold nanoparticles can modify the properties of laser light and be used to make photon transistors

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Neurosciences

A smell, a response

Mouse brain activates a distinct set of neurons in response to different animal odors

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Nutrition

Digit data

Isotopes in the fingernails reveal information about a person’s diet and can be used to infer their socioeconomic status

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Biota – 20 Years

More than biodiversity

Studies on interactions between vegetation and the climate, such as those that occur in the Atlantic Forest, open new paths for the FAPESP program

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COVID-19

Healthy spaces

The knowledge acquired during past pandemics, especially long-term ones, can help us face the current one

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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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