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Obituary

Luiz Henrique Lopes dos Santos reconciled philosophical reflections with the formulation of science policy

USP professor conducted renowned studies on the philosophy of logic and was translating Aristotle directly from Greek into Portuguese

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Linguistics

What our ways of speaking say about us and others

Researchers investigate how language variation influences social perception and shapes identities

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History

Spanish Inquisition’s second visit to Bahia resulted in five times more accusations than previously known

Recently found documents about the visit and others by the Tribunal of the Holy Office reveal details of life in the colony

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Public policies

Brazil’s National Education Plan improves access to schooling but fails to meet most of its targets

Effects of the COVID-19 pandemic on learning, followed by successive budget cuts, have hindered the program

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Naval engineering

Brazil takes another step towards building a nuclear-powered submarine

Assembly of the prototype reactor that will propel the vessel is underway; project is set to be completed in the next decade

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Chemical engineering

New technique for recycling lithium-ion batteries

Pilot plant will test unique process for recovering chemicals from the main types of devices on the market

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Green energy

Brazilian scientists transform CO2 into fuel for ships, cars, and trucks

Ongoing projects seek to establish industrial production of renewable methanol, gasoline, and diesel

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Public health

New criteria for healthy eating

Recent studies suggest that what we eat can add or subtract years of healthy life, offering guidelines for an environmentally friendly diet

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Epidemiology

Survey records high use of vapes among young people

Most teens continue to use e-cigarettes after trying them for the first time

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Biochemistry

Marine organism has unknown green photoprotein

Deep-sea discoveries open new biotechnological paths and deepen understanding of forms of bioluminescence

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Ecology

Multicolored birds avoid urban areas

Large cities attract voracious, dull-colored birds and repel small, more colorful ones, impoverishing metropolitan fauna

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Botany

Trees that protect other trees

Capororoca and pixirica in the Atlantic Forest, and catingueira and faveleiro in the Caatinga, create favorable environments for dozens of other species

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Data

Higher education growing in Brazil

Higher education growing in Brazil

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Good practices

Progress on shaky ground

University ranking uses indicators linked to scientific misconduct to classify institutions

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Good practices

The article writing style of ChatGPT

One in seven biomedical papers published in 2024 was written with support from artificial intelligence, study shows

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Good practices

Journal stops publishing papers amid investigation into suspected misconduct

Journal stops publishing papers amid investigation into suspected misconduct

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Interview

Cape Verdean researcher warns of the dangers of inequality in research networks

Sociologist and political scientist Eurídice Monteiro highlights Africa’s role in the global scientific dialogue

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Funding

Budget amendments used as a complementary source of funding for public universities

Although they help fill budget gaps, researchers are concerned about growing dependence on the mechanism

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Interview

Renato Cotta: Engineer advocates for increased investment in the nuclear sector

UFRJ researcher helped develop Brazil’s ultracentrifuge technology for uranium enrichment

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Immunology

Scientists develop anti-tumor immune cell that reduces rejection risk

CAR-NK lymphocytes could be produced in advance for use in numerous patients

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Immunology

Center in São Paulo will test modified immune cells to treat blood cancer in 81 patients

Goal is to fight leukemia and lymphoma resistant to chemo and radiotherapy

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Ecology

Sloths die of heat in the Amazon

Ten three-toed sloths die in Amazon heatwave

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Biotechnology

Oil-filtering membrane

Membrane could reduce energy consumption in oil refining

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Immunology

An explanation for severe dengue

Dengue fever less severe in people of African descent

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Innovation

Concrete made with coffee instead of sand

Dengue fever less severe in people of African descent

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Astrophysics

Superhot gases connect galaxies

Filament of superhot gas connects four galaxy clusters

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Immunology

Rabies vaccine in gel form for bats

Vaccine in gel form helps control rabies transmission in bats

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Paleontology

Ice Age survivors

443-million-year-old arthropods withstood major climate changes

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Environment

The unwanted effects of sunscreen

Compound used in sunscreen and other cosmetics hinders plastic degradation

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Zoology

Solved: the mystery of sex in egg-laying mammals

Platypus sex determined by hormone-derived gene

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