Ricardo Zorzetto

Genetics

Family ties

Roughly 46,000 years ago, modern human beings ventured into the heart of Europe and interbred with Neanderthals

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Materials engineering

Made to order

Artificial intelligence system determines glass formulation based on the desired characteristics

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COVID-19

New vaccines on the way

Butantan Institute and federal government plan to start human trials of two vaccine candidates in the coming months

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COVID-19

The evolution of a virus

Low vaccination rates and lack of control over SARS-CoV-2 circulation is increasing the likelihood that more transmissible and lethal variants will emerge

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Obituary

Creator of memories

Born in Argentina, Ivan Izquierdo helped to discover how the brain learns and recovers stored information and shaped generations of Brazilian researchers

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INTERVIEW

Eurico Arruda: Admirer of viruses

Coronavirus specialist and USP physician speaks about the new variants of SARS-CoV-2 and the risk they represent in the efficacy of some vaccines

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History

The tortuous entry into Brazil

Documents detail the arrival of enslaved Africans in Rio de Janeiro in the early nineteenth century

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Oceanography

Deep heating

Sensors installed up to 4,700 meters below the ocean’s surface record increased temperatures in abyssal regions of the South Atlantic

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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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Geophysics

Hidden light

Brazilian group identifies rare light in the upper atmosphere over northeastern Brazil, created by the Moon passing in front of the Sun

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Cover

Vaccines edge closer

Less than a year after first cases of COVID-19 were confirmed, vaccine candidates in the final stages of development offer promising results

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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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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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Interview

Radovan Borojevic: The tamer of cells

The Croatian-born biologist and UFRJ professor emeritus speaks of the obstacles and encouraging perspectives for regenerative medicine

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Cover

Potential treatment

With no effective antiviral therapy, COVID-19 management for the time being consists of reducing inflammation and preventing blood clots

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Cover

The emotional pain of the pandemic

Psychological suffering and mental illness caused by radical changes to daily life, fear of getting sick, and an economic crisis

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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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Cover

Natural guests

Abundant viruses contribute to the genetic diversity of life on Earth and may have emerged four times throughout the planet's history

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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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Interview

Michel Nussenzweig: Antibody hunter

Brazilian-born immunologist searches the plasma of patients who have survived COVID-19 for proteins capable of fighting the novel coronavirus

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Cover

A frightening disease

Reports suggest the novel coronavirus may indirectly affect other organs as well as the lungs

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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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Cover

Stopping explosive spread

Early social distancing key to faster containment of the novel coronavirus

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Paleontology

The extinct manatee of Rondônia

Newly discovered species lived in the Madeira River region 45,000 years ago

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Geochemistry

Stardust found in meteorite

Meteorite that fell in Australia in 1969 contains material up to 7.5 billion years old—older than our solar system

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Population genetics

The last of the Tupiniquim

Indigenous people from Espírito Santo reached the Brazilian coastline 1,200 years ago and later met European colonizers during the Age of Discovery

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Interview

Graham Dellaire: Science with caution

Molecular biologist says ethical use of gene editing depends on broad consensus and a shift in scientific culture

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Cover

Gene scissors

Human tests attempt to determine whether DNA cutting and editing is a safe way to treat diseases

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Physics

The unexpected power of friction

Brazilian and German scientists explain the unexpected motion of the barrel in the explosive ping-pong ball experiment

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