Redação
Data
Electricity production in Brazil has almost doubled since 2001, but remains clean
Electricity production in Brazil has almost doubled since 2001, but remains clean
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Good practices
Article proves resilient after retraction
In 2005, the scientific journal Chest, from the American College of Chest Physicians, published an article by surgeon Wataru Matsuyama of Kagoshima University, Japan, sharing the results of a clinical trial that suggested omega-3 polyunsaturated fats had a positive effect on patients with chronic obstructive pulmonary disease. As the result of an investigation into Matsuyama’s... View Article
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Good practices
COVID-19 miracle remedies
A preprint describing a potential treatment for the novel coronavirus caught the attention of Dutch biologist Elizabeth Bik, who runs a blog on scientific integrity
By Redação
Letter from the editor | 297
The Pantanal’s turn
The Pantanal is one of the best-preserved biomes in Brazil. As of 2019, 84% of its native vegetation had been maintained. It’s landscape is shaped by heavy rainfall and river floods, which leave much of the land flooded for months, as well as droughts that result in sporadic fires. The fires that devastated 27% of... View Article
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Photolab
Ancient dunes
The sand dunes on the banks of the São Francisco River, the most extensive inland dunes in Brazil, began to form more than 20,000 years ago
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COVID-19
SARS-CoV-2 can attack immune cells
The novel coronavirus is capable of infecting and killing immune cells, say researchers from the University of São Paulo in Ribeirão Preto
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COVID-19
Study determines Chinese vaccine is safe
CoronaVac is safe and has no serious side effects
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COVID-19
Antiviral plastic
Researchers have developed an adhesive plastic capable of inactivating 99.8% of novel coronavirus particles in two minutes
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COVID-19
Manaus and herd immunity
Weeks after the number of new COVID-19 cases and deaths peaked in Manaus, the city appeared to have achieved herd immunity
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COVID-19
Effect on births
Fearful of contracting the novel coronavirus, many pregnant women are putting off going to the hospital until they are at a more advanced stage of labor
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COVID-19
Antibody treatment reduces time spent in hospital
American pharmaceutical company Eli Lilly presented the initial results of a clinical trial that used monoclonal antibodies in patients infected with the novel coronavirus
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COVID-19
Obesity can exacerbate COVID-19
A large-scale study found that obese people infected with SARS-CoV-2 are twice as likely to need medical care
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biodiversity
Wildlife shrinks by 68% in five decades
The global populations of about 4,400 mammal, bird, reptile, fish, and amphibian species shrank by 68% between the years 1970 and 2016
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Pharmacology
Schistosomiasis medicine
The US FDA has granted orphan drug status to the immunomodulator P-MAPA for use against schistosomiasis
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Genetics
Where Vikings went
Researchers analyzed the remains of 442 humans found in Viking cemeteries in Scotland, concluding that the Viking identity was not limited to people with Scandinavian genetic ancestry
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Nanotechnology
A water-cooled chip
A group has proposed and manufactured a semiconductor chip equipped with an internal cooling system that works by pumping water through a three-dimensional network of microchannels
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Chemistry
Life on Venus?
An international group of researchers identified the presence of phosphine, a possible sign of life, in the atmosphere of Venus
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Biochemistry
The trigger for muscular strength
An international group of researchers has identified a chemical compound that functions as a molecular trigger for the strength gains caused by physical exercise
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Award
Helena Nader wins national award
On September 23, biochemist Helena Nader, a professor from the Federal University of São Paulo, received the Almirante Álvaro Alberto Award in Life Sciences
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Energy
Electric cars, the economy, and health
Replacing 25% of American cars with electric vehicles would save the country US$17 billion per year
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Environment
Record fires in the Pantanal in 2020
There were 2,534 wildfires in the Pantanal in the first half of 2020
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Data
Brazil climbs four places in the Global Innovation Index1
Between 2019 and 2020, Brazil climbed from 66th to 62nd in the list of 100 countries ranked by the Global Innovation Index
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Good practices
Fraud in conference proceedings
IOP Publishing, based in the United Kingdom, has retracted 25 physics and materials sciences/engineering conference proceedings papers
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Good practices
The Lancet acknowledges weaknesses in its review process
The scientific journal has announced plans to change its article-review process in order to prevent the publication of papers based on interpretations of large data sets that cannot be audited
By Redação
Video
Why the Covid-19 vaccine is important
Never before so many vaccines have been developed at the same time against a single disease, nor so rapidly | 7'32
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COVID-19
Seismographs used to measure social distancing
Due to the social distancing measures adopted to contain the pandemic, seismographs in large cities registered a significant reduction in the waves generated by ground movement
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COVID-19
The content of fake news
Scientific institutions have created websites to combat fake news
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COVID-19
Intranasal coronavirus vaccine
Two international studies have suggested that COVID-19 aerosol vaccine candidates, administered intranasally, offer protection against SARS-CoV-2 infection in animals
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