Science

COVER

Life immersed in microplastics

Microscopic particles, which have already been found in various organs and tissues of the human body, have now been identified in the brain

By

Geography

Disputed territories

Mineral extraction for energy transition aggravates land possession and water access conflicts in Brazil

By

Archaeology

The Amazon revealed

Researchers meet with people from the rainforest to discuss how laser scanning can provide information about the region’s past and contribute to its future

By

Biotechnology

Stings neutralized

Scientists developed a serum for the stings of Africanized bees, which are responsible for 30,000 accidents per year in Brazil

By

Neurology

A potential model of Alzheimer’s disease

Brazilian researchers identify characteristic lesions of human neurodegenerative disease in the brains of capuchin monkeys

By

Medicine

Oropouche on the prowl

New variant of virus multiplies rapidly and may facilitate disease transmission

By

Immunology

Protection against severe dengue

The candidate vaccine from Butantan reduces the risk of developing the severe form of the disease by 89%

By

Ecology

The surprising faces of the Caatinga

The diversity of landscapes underpins the proposed new classification of semiarid environments

By

Physics

Closer to neutrinos

Brazilian scholars have developed methods to purify liquid argon for the international DUNE project; the aim of this experiment is to detect the mysterious particles known as neutrinos

By

Climate change

Global levels rise, while national levels fall

Greenhouse gas emissions are increasing worldwide but are decreasing in Brazil because of reduced deforestation in the Amazon

By

Ecology

Soil and vegetation care restores the vitality of the Caatinga

Experiments suggest strategies for recovering native vegetation and increasing agricultural production in the semiarid Northeast

By

Environment

Belo Monte Dam and drought cause the Volta Grande do Xingu region to dry up

Monitoring indicates that low water flow is preventing fish from reproducing and impeding the way of life of Indigenous people and riverside communities

By

Archaeology

The Amazon revealed

Researchers meet with people from the rainforest to discuss how laser scanning can provide information about the region’s past and contribute to its future

By

Interview

José Nelson Onuchic: Genetic structure modeler

Brazilian physicist who specializes in protein and DNA folding helped restore the genome of the woolly mammoth

By and

Immunology

How endometriosis worsens

Compounds released by immune cells stimulate lesion growth, which can be alleviated by migraine medications

By

Neurology

Nuances of dementia

In Brazil, Alzheimer's disease is more common in White individuals, while cognitive decline of vascular origin is more frequent in Black individuals

By

Interview

Ruy Caldas: From Grande sertão to plant biochemistry

At 84, the agronomist who cultivated research teams and programs across Brazilian universities looks back on his career

By

Climate changes

Nature-based solutions can inspire climate change adaptations

Brazilian guide launched at COP29 highlights interventions that could increase the resilience of coastal cities

By

Climate changes

Study finds 25 of Earth’s 35 vital signs are in critical condition

Records continue to be broken for parameters such as the planet's temperature, atmospheric CO2 concentration, and biodiversity loss

By

Climate changes

The suffocation of Earth

Record greenhouse gas emissions result in unabated global warming

By

Physics

Mysterious water phenomenon can also be produced in quantum systems

Mpemba effect causes hot liquids to freeze faster than cold ones

By

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

By

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

By

Global Warming

The Amazon is not uniformly affected by drought

The Amazon is not uniformly affected by drought

By

Oceanography

Threat to Brazilian coral puts fish at risk

Despite being resistant to environmental changes, species are being eliminated

By

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

By

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

By

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

By

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

By

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

By