Redação

Bees capable of adding and subtracting

Apis mellifera bees can learn to recognize quantities

Light Brazilian earthquakes

Brazil experiences earthquakes of a low to medium magnitude, similar to those of central-eastern USA and the interior of Australia

Rare Cuban flora

The library at Cornell University, USA, has published a scanned copy of a nineteenth-century manuscript on Cuban flora by American botanist Nancy Anne Kingsbury Wollstonecraft on its website

Controversial airport on sacred Incan land

The recently started construction of an international airport in Chinchero, southeastern Peru, has raised concerns about potential damage to archaeological sites in the region

Women earning PhDs in Brazil

A total of 21,591 researchers received PhDs in Brazil in 2017

Inappropriate reviewer behavior

The Oxford University Press journal Bioinformatics recently published a case study on misconduct in the peer review process

The American connection

The controversial baby gene-editing experiment performed in China may have directly involved a scientist from the USA

Complex mechanisms

Rare white cougar captured on camera

Hidden cameras in the Serra dos Órgãos National Park in Rio de Janeiro captured rare photographs of a cougar with a white coat—known to biologists as leucism

Monogamy linked to interaction between 24 genes

Researchers found similar gene activity in the monogamous species of different animals

ITA engineer to head the CNPq

Aeronautical engineer João Luiz Filgueiras de Azevedo is the new president of the Brazilian National Council for Scientific and Technological Development, the largest federal funding agency in Brazil

The origin of the mango flower’s sweet smell

In the mango and cajuzinho-do-campo flowers, the scent glands are located at the inner base of the petals

Scaffolds aid neuron regeneration

Neuroscientists and nanoengineering experts have developed 3D-printable scaffolds compatible with living tissue that in the future could be used to treat spinal cord injuries

Ice loss in Antarctica increases sixfold in 40 years

A new tool has made it possible to more accurately calculate the thickness of the Antarctic ice sheets and the speed at which they are moving

First exhibition since the fire

On January 17, the Brazilian National Museum opened its first exhibition since the fire that destroyed much of its collection on September 2, 2018

The young, ephemeral rings of Saturn

Two recent studies have presented new theories on their origin and probable end of Saturn's rings

Roughly 1.5 million Jews killed in just three months

Between August and October of 1942, at the height of Operation Reinhard, 500,000 Jews per month were taken to concentration camps and killed in occupied Poland

Turbine layout affects power generation

Researchers found that irregular spacing between turbines may optimize energy production

British universities face financial uncertainty

British universities are on the brink of a credit crunch, having run up debts of £10.8 billion amidst financial uncertainties caused by Brexit

Rare paternal inheritance

Researchers found maternal and paternal mitochondrial DNA in the cells of multiple generations of men and women from three different families

Sensor detects bacteria in food

Brazilian researchers have developed a biosensor capable of quickly identifying bacteria in food and drink

China lands probe on dark side of the Moon

China has become the first country to land a probe on the far side of the Moon

Scientific articles in 2017

Researchers living in Brazil published 55,051 scientific articles, of which 22,856 were published by authors based in São Paulo

Highly cited and retracted

An article published in 2017 on the effects of chronic inflammation during the aging process has been retracted

Misconduct in papers on misconduct

One of the abstracts submitted to the 6th World Conference on Research Integrity contained signs of plagiarism

Microscopic giants

In samples collected off the coast of Rio de Janeiro and from saline lakes in the Pantanal, virologist identified giant viruses with the longest tails ever recorded

The challenge of knowledge transfer

While Paraíba is a leader in patents pending, researchers and the production sector argue about licensing technology

Thousands of solar panels on the Sobradinho dam

The solar farm is capable of generating 1 megawatt peak (MWp)

Viruses in monkeys and sloths

Primates and sloths in the Atlantic Forest of southern Bahia carry an unexpected range of insect-borne viruses

Guaraní still influenced by missionaries

People living in areas closer to the mission sites earn about 10% more than residents of neighboring regions where the Jesuit missions were abandoned