Science

Astronomy

Gamma-ray bursts hint at the existence of a new type of neutron star

A study led by a Brazilian scientist suggests that these celestial objects last less than 1 second and have a 20% greater mass than observed

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COVID-19

Nearly 60,000 people in China died of COVID-19 in one month

After weeks of no information, the Asian giant released more plausible data in January on the total number of deaths caused by the current outbreak

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Astrophysics

Cluster of 58 galaxies discovered in the shadow of the Milky Way

The astrological structure is located about 2.2 billion light years from Earth in a region of space obscured by the center of our galaxy

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Physics

Nuclear fusion experiment produces more energy than it consumes for the first time

The result achieved in the USA is a milestone, but there is still a long way to go to master the technology

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Physics

There are about 90 nuclear fusion reactors operating worldwide

Three small experimental machines are located in Brazil

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INTERVIEW

Mercedes Bustamante: Before the water runs out

Biologist from the University of Brasília warns that deforestation in the Cerrado also harms other regions

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Physics

Dark matter could produce antimatter capable of crossing the Milky Way

Experiment carried out at the LHC particle accelerator indicates that half of the antiparticles generated in this way reach the vicinity of Earth

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SPACE

Brazil and the USA launch SPORT satellite

Device will study plasma bubbles in the upper atmosphere that affect communications on Earth

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Astrophysics

Data from James Webb Telescope used to reconstruct formation of planetary nebula

Images suggest the celestial object originated from an interaction involving at least four stars

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INTERVIEW

Chi Van Dang: An optimistic view of oncology

Scientific director of the Ludwig Institute for Cancer Research talks about the challenges and perspectives of the field

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Infectious diseases

Antibody neutralizes Zika in preclinical trials

A superpotent immunoglobulin M antibody stopped the virus in animal tests

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COVID-19

Strains of the Omicron variant lead to dramatic rise in COVID-19 cases at the end of 2022

Average weekly number of new infections increased 12-fold between November and mid-December, with 4.6 times as many deaths

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CLIMATOLOGY

Global warming could reach 1.5 °C within nine years

Global warming will reach the threshold of 1.5 ºC in nine years if there is no change in CO2 emissions

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INTERVIEW

Carmino Antonio de Souza: The ways of healthcare

UNICAMP hematologist helps develop a plan to resume production of essential drugs, an imperative created by the COVID-19 pandemic

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Physics

Exotic phase of matter could be useful in the development of quantum computers

Magnetic compound in a state known as spin liquid appears to be more stable than previously thought

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Science

Pig farming has the biggest environmental footprint

Study determines the pressure placed on natural resources by food production worldwide

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AGRICULTURE

Increasing soy productivity is essential to curbing deforestation

Measures could prevent 5.7 million hectares of vegetation in the Amazon and Cerrado from being converted into cropland over the next 15 years

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Ecology

“Talking” turtles suggest acoustic communication arose more than 400 million years ago

The sending of messages by sound originated in a common ancestor of terrestrial vertebrates and fish with lungs

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Archaeology

Neanderthals were highly carnivorous

They lived in family groups and ate almost exclusively meat

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Health

The falling cost of DNA sequencing and our increasing ability to interpret data are bringing genetic testing closer to clinical practice

DNA analysis is already being used to diagnose rare diseases and guide cancer treatment

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SCIENCE COMMUNICATION

Ig Nobel Prize for constipated scorpions

Satire of the biggest scientific award in the world selects the work of a pair from the University of São Paulo in the Biology category

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NOBEL PRIZE

The 2022 winners

Twelve individuals and two institutions were awarded the Nobel Prize this year

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ORNITHOLOGY

Study confirms existence of dwarf hyacinth macaws

Research also defined the growth stages of this bird from the Pantanal, which was once an endangered species

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ECOLOGY

Freshwater mangroves identified near the mouth of the Amazon River

Study expands the area occupied by this rare type of coastal ecosystem on the border between Pará and Amapá

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IMMUNOLOGY

Three Brazilian COVID-19 vaccines begin human testing

The three candidates use different technologies; two have already completed the first phase of clinical trials

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COVER

Emissions of carbon dioxide—the most abundant greenhouse gas—double in the Amazon

Study indicates that increased deforestation resulted in the rainforest emitting more carbon than it absorbed in 2019 and 2020

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PHYSICS

AI for finding materials

Machine learning could accelerate the discovery of two-dimensional crystals similar to graphene but with specific properties

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Biotechnology

Cell therapy on the radar

Company changes business plan and invests in regenerative medicine in search of a cure for diseases that currently have no treatment

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Ecology

Vaccinating primates against yellow fever

Early trials suggest human vaccines are effective in wild primate species susceptible to the yellow fever virus

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The rise and fall of Tupi

The rise and fall of Tupi

Speakers of the language may have numbered 4 to 5 million a millennium ago but began declining sharply before Europeans arrived on the continent

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