Notes
Medicine
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
By Redação
Environment
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
By Redação
Health
Exercise with blood-flow restriction reduces symptoms of arthritis
Performing low-load resistance exercises can reduce the pain and discomfort of rheumatoid arthritis
By Redação
Medicine
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
By Redação
Political Sci.
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
By Redação
Archaeology
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
By Redação
Biology
The cockatoo that just wants to have fun
The bird's rhythmic behavior can provide insights into how this parrot species' brain functions
By Redação
Public health
Ebola outbreak alert level raised in Africa
The World Health Organization has raised the alert level in response to the threat of an Ebola virus outbreak in the Democratic Republic of the Congo
By Redacción
Environment
Climate change litigation and record temperatures
The number of climate change lawsuits continues to grow in at least 28 countries
By Redação
Physics
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
By Redação
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
By Redação
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
By Redação
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
By Redação
Archaeology
Incans charged agricultural tax
A specific type of quipu may be the first evidence that taxes were collected by the ancient Incan empire
By Redação
Biology
Giants with their own light source
Researchers have now isolated the substances involved in Dosidicus gigas bioluminescence
By Redação
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
By Redação
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
By Redação
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
By Redação
Medicine
Jean Purdy’s overlooked contribution to IVF
British nurse and embryologist Jean Purdy made a decisive contribution to the development of in vitro fertilization
By Redação
Medicine
Fecal transplant tragedy
The US FDA has suspended clinical trials of fecal microbiota transplantation
By Redação
paleontology
A new sharp-clawed dinosaur
Vespersaurus paranaensis is the first dinosaur to be found in this state in southern Brazil
By Redação
Botany
Plants with miner roots
Study demonstrates a new function of the roots of B. tomentosa and B. macrantha
By Redação
Medicine
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
By Redação
2020
European Research Council appoints new president
Italian engineer Mauro Ferrari will take over the presidency of the European Research Council
By Redação
Evolution
A 42-million-year-old whale with legs
Its limbs were well adapted to swimming and were not suited to moving across land
By Redação
Environment
The long goodbye of the glaciers
Mountain glaciers in southwestern Argentina and northeastern Spain are rapidly losing ice and could disappear completely by the end of the century
By Redação
Communication
Plan S pushed back to 2021
The decision was made to give scientific publishers more time to transform their current subscription journals into publications whose costs are covered exclusively by article authors, with no fees for readers
By Redação
Physics
UNICAMP dean wins José Reis award
The panel of judges highlighted "the scope and diversity of his scientific communication work, including his contributions to education in this field"
By Redação
Archaeology
Ancient use of psychoactive substances in Bolivia
An international team of anthropologists and bioarchaeologists has identified traces of hallucinogenic substances in a 1,000-year-old leather bag found in the Bolivian Andes
By Redação
