Highlights

Automotive engineering

Device designed in Brazil retains some of the CO2 emitted by trucks

System captured up to 17% of gas emissions from diesel engines in real-world tests

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Biotechnology

Microorganisms provide alternative for production of sustainable oils

Inputs can be used for development of biofuels and as an ingredient in the food and cosmetics industries

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Astrophysics

Far reaches of the Solar System could be home to another planet

Study suggests the existence of a new world with a mass 7.5 times greater than Earth

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Physics

Advances in experiments manipulating interactions between acoustic and light waves

Control of the interactions between phonons and photons could be used to develop more refined lasers and facilitate quantum information processing

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Climate change

Heatwaves, high acidification, and chlorophyll scarcity devastate the South Atlantic

Simultaneous occurrence of three types of extreme event has become more frequent in the south of the ocean since 2009

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Biodiversity

Study lists 409 edible species of wild mushrooms

Study lists 409 edible species of wild mushrooms

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Mental health

Almost 11 million Brazilians gamble in ways that put their health and finances at risk

Estimate is based on a survey of 4,860 people aged over 14 from 349 municipalities

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Public health

Think carefully before drinking soda or sweetened coffee

Think carefully before drinking soda or sweetened coffee

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Good practices

Traces of fraud in second-rate images

Experts identify new form of academic misconduct related to the sale of product designs

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Good practices

Sanctions made public

Chinese government punishes 26 researchers for misconduct and shares details in online report

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Good practices

Irrelevant references

Paper retracted after authors criticize peer reviewers for pressuring them to include citations

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Data

International scientific collaborations with France

Graphs show numbers of scientific articles published through international collaborations with France

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Open science

Website allows researchers to request evaluation of their preprints

American website is integrated with SciELO and other international repositories

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Interview

Christiane Taubira: An Amazonian with global reach

After serving as a member of parliament and minister in France, the French-Guyanese economist is preparing to contribute to COP30 with a study on the diversity of local populations

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Affirmative action

Number of Indigenous students in higher education grows, but they face challenges graduating

Indigenous students struggle with cultural barriers and prejudice, and may need more time to complete their studies

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