Redação

The life of an actor: hit or miss

The researchers analyzed the profiles of 1.5 million actors and 896,000 actresses from 1888 to 2016

Detecting tumor cells with light and sound

An international group of researchers has developed a noninvasive system that uses laser and ultrasound to detect melanoma cells in the blood

Plenty of space to plant trees

There are about 1.6 billion hectares available worldwide for forest restoration projects, most of which are far from urban areas and agricultural land

Exercise with blood-flow restriction reduces symptoms of arthritis

Performing low-load resistance exercises can reduce the pain and discomfort of rheumatoid arthritis

HIV therapy has prevented 9.5 million deaths

Antiretroviral therapy prevented 9.5 million deaths worldwide between 1995 and 2015, with a global economic benefit of US$1.05 trillion

Campaigns do not change voters’ opinions

Election campaigns designed to disseminate information about the performance of politicians do not influence voter opinion, according to an analysis of data obtained from several countries, including Brazil

Egyptian Mummy in Rio Grande do Sul

Researchers have identified the head of an Egyptian mummy who lived 2,500 years ago stored at the 25 de Julho Cultural Center in Cerro Largo, Rio Grande do Sul

The cockatoo that just wants to have fun

The bird's rhythmic behavior can provide insights into how this parrot species' brain functions

Climate change litigation and record temperatures

The number of climate change lawsuits continues to grow in at least 28 countries

The flight of the dandelion seed

Researchers used fluid dynamics equations to analyze the flight behavior of dandelion seeds and modeled the airflow patterns that form around the pappus as it floats through the air

Social inclusion in higher education

Inside the vines

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

Profile: Thoroh de Souza

Physicist and classical singer planned a research center aimed at making basic science into high technology products.

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

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

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

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

Jean Purdy’s overlooked contribution to IVF

British nurse and embryologist Jean Purdy made a decisive contribution to the development of in vitro fertilization

Fecal transplant tragedy

The US FDA has suspended clinical trials of fecal microbiota transplantation

A new sharp-clawed dinosaur

Vespersaurus paranaensis is the first dinosaur to be found in this state in southern Brazil

Academy may expel members for misconduct

The US National Academy of Sciences has announced a change to its bylaws to allow the expulsion of members who violate the organization's code of conduct

Is it possible to derive good from evil?

The quality and usefulness of the Atlas of Topographical and Applied Human Anatomy is now raising ethical questions

Laboratory brain

Biologist Caroline Brandão Teles has been studying the relationship between schizophrenia and defects in neural cells known as oligodendrocytes—which she has been attempting to create from stem cells

Spending at universities with a high number of graduate students

Spending at universities with a high number of graduate students

Plants with miner roots

Study demonstrates a new function of the roots of B. tomentosa and B. macrantha

Stroke deaths fall by 30% in 15 years

The survey was based on death records available from the Brazilian Ministry of Health's national health information system