Highlights

Biotechnology

Research indicates new uses for microalgae

In the lab, the microscopic organisms proved capable of producing fertilizer, fixing metals in effluents, and offering new strategies for biofuels; the challenge is to expand the scale

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Physics

Mysterious water phenomenon can also be produced in quantum systems

Mpemba effect causes hot liquids to freeze faster than cold ones

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Astrophysics

Asteroid set to pass close to Earth in 2029 could create a meteor shower on the Moon 100 years later

Proximity to Earth could cause debris surrounding the asteroid to be pulled away by the planet’s gravitational field

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Climate change

Carbon emissions from wildfires increased by 60% between 2001 and 2023

The rise was mainly caused by fires in temperate and boreal regions, such as Canada

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Global Warming

The Amazon is not uniformly affected by drought

The Amazon is not uniformly affected by drought

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Oceanography

Threat to Brazilian coral puts fish at risk

Despite being resistant to environmental changes, species are being eliminated

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Paleontology

When and where were the first animals in South America?

Western Mato Grosso do Sul, eastern Santa Catarina, and northern Minas Gerais were home to complex organisms between 575 million and 530 million years ago

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Evolution

The eardrum may have saved reptiles from mass extinction

The tympanic membrane in the inner ear emerged in a common ancestor of lizards, crocodiles, alligators, snakes, turtles, and birds 250 million years ago

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Physiology

Neurotransmitter with dual function protects against obesity

Molecule known to act on the brain, stimulating appetite and weight gain, has the opposite effect when secreted by peripheral nerves, helping to burn fat

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Public Health

Trans women continue to suffer from poor health and prejudice

Study with 1,317 participants in five state capitals finds persistently high rates of sexually transmitted infections (STIs) and obstacles that limit access to health services

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Nobel Prize

2024 Nobel Prize honors researchers in the field of artificial intelligence

The physics and chemistry prizes were awarded to scientists who created computational tools

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Data

University patents in Brazil and its states

Data on university patents filed in Brazil and in each state

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Good practices

Canada’s Medical Association apologizes for bad conduct with native peoples

Organ admits it has not abided to the ethical standards demanded by the profession

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Good practices

Divergent calculations

Researchers reach different conclusions on the scale of data fabrication

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Good practices

Rise and fall

Suspicious images in articles lead to downfall of director of Alzheimer's research program

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