Printed

“I see too many cases where nothing ever happens”

Journalist Ivan Oransky, creator of the Retraction Watch website, discusses how the fight against scientific misconduct has evolved in recent years

Technology Purchase

Inside the vines

The dyed stem cross-sections in the images show the stiffer and the more flexible parts of forest vines

In cells, the answer

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

Academic transparency

Résumés should always be checked to ensure accuracy and consistency

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

Much more than a photographer

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

Enhanced treatment

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

Disarming Violence

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

Cleaner flight

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

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

The unexpected power of friction

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

Environmental acoustics

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

Scattered ancestry

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

A new form of dementia

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

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

Fattening foods

New evidence links ultra-processed foods to weight gain

Youngsuk Chi: Sustainable transition

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

A test-tube mirage

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

New life for the Ipiranga Museum

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

Tools for planning the future

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

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

Reuse, replace, degrade

Experts call for multiple strategies to tackle plastic pollution

The threat of microplastics

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

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

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

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

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

Incans charged agricultural tax

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

Giants with their own light source

Researchers have now isolated the substances involved in Dosidicus gigas bioluminescence