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Profile

In cells, the answer

Scientist combines knowledge of molecular biology and information technology to create genetic testing startup

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Careers

Academic transparency

Résumés should always be checked to ensure accuracy and consistency

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Retrospect

An ecologist in the New World

Naturalist Alexander von Humboldt explored the Americas in the early nineteenth century and alerted the world to human impact on the environment

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Photography

Much more than a photographer

A retrospective on Marc Ferrez brings to light his dialogue with science and expands knowledge of his work

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Public policy 

Enhanced treatment

Studies identify new evidence that cash transfer programs help fight tuberculosis in Brazil

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Public Health

Disarming Violence

Curbing Brazil’s homicide epidemic hinges on restricting access to firearms, fresh research suggests

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Aviation

Cleaner flight

Embraer and WEG team up to develop electric propulsion systems for aviation

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Food Engineering

Lab-grown beef

Research into meat made from plants or animal cells with the same taste, smell, and texture as traditional beef is advancing quickly

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Physics

The unexpected power of friction

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

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Soundscape

Environmental acoustics

Audio recordings are used to profile ecosystems and identify changes caused by humans

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Genetics

Scattered ancestry

Mestizos from Brazil's southern states have more Amerindian DNA lineage than modern-day indigenous groups in the region.

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Neurology

A new form of dementia

Confused with Alzheimer’s, LATE appears with greater frequency in octogenarians

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Public health

Kissing bugs have arrived in Greater São Paulo

Since 2015, more than 100 insects have been captured, 30% of them infected with the protozoan that causes Chagas disease

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Epidemiology

Fattening foods

New evidence links ultra-processed foods to weight gain

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Interview

Youngsuk Chi: Sustainable transition

For the president of Elsevier, Plan S is viable, but only over the long term

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Reproducibility

A test-tube mirage

Failed cold fusion experiment attempted 30 years ago showed how illusory discoveries trigger self-correcting mechanisms in science

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Funding

New life for the Ipiranga Museum

With support from public and private companies, construction to restore and modernize the monumental building begins in September

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S&T Policy

Tools for planning the future

Stability in funding at state universities in São Paulo allowed for continual education about financial management

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Interview

Silvia Pimentel: Women’s rights

The lawyer who chaired the most important international committee for the defense of women’s rights speaks about the more than four decades she spent in teaching, research, and activism

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Cover

Reuse, replace, degrade

Experts call for multiple strategies to tackle plastic pollution

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Cover

The threat of microplastics

Tiny plastic fragments are everywhere and removing them poses a major challenge

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Cover

Plastic Planet

Invented a century ago, the polymeric material that at first seemed to make modern life so much easier has now become a major environmental problem

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Ethology

Changes in primate culture

Capuchin monkeys (Sapajus libidinosus) living in Serra da Capivara National Park in Piauí 3,000 years ago knew how to break and crush fruits and seeds using stones

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Scientometrics

China ahead of the USA

In 2017, the Scopus database recorded 456,960 articles, books, and conference proceedings produced by China, accounting for 18.9% of global scientific output

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Environment

Climate change and the Amazon

Climate change could become the primary threat to the Amazon rainforest in the coming decades, contributing to a significant decline in tree diversity in the region by 2050

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Archaeology

Incans charged agricultural tax

A specific type of quipu may be the first evidence that taxes were collected by the ancient Incan empire

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Biology

Giants with their own light source

Researchers have now isolated the substances involved in Dosidicus gigas bioluminescence

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Funding

Endowment fund veto overturned

Brazilian Congress rescinded a veto by President Jair Bolsonaro that prevented foundations that fund public universities from acting as managers of philanthropic funds known as endowment funds

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Astronomy

Mystery on the Moon

Near the South Pole of the Moon, on the side not seen from Earth, there is a crater of colossal proportions

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Education

Refugees better educated than the average Brazilian

Most refugees arriving in Brazil have a high-school diploma (while one-third have a degree) and are working

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