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A bile acid could explain how calorie restriction slows ageing

mercredi 18 décembre 2024 par David A. Sinclair

Nature, Published online: 18 December 2024; doi:10.1038/d41586-024-04062-1Could lithocholic acid, a compound produced when gut bacteria process bile, be the missing link between a low-calorie diet and its age-defying effects? Experiments in mice, flies and nematode worms provide (...)

Nature

Pioneering journal eLife faces major test after loss of impact factor

mercredi 18 décembre 2024 par Diana Kwon

Nature, Published online: 18 December 2024; doi:10.1038/d41586-024-04199-zThe open-access title’s bold publishing model has bought long-bubbling conflicts to the fore.

Nature

Giant study finds untrustworthy trials pollute gold-standard medical reviews

mercredi 18 décembre 2024 par Richard Van Noorden

Nature, Published online: 18 December 2024; doi:10.1038/d41586-024-04206-3Two-year collaboration aims to create tools to help counter the tide of flawed research.

Nature

Algae use the underwater light spectrum to sense depth

mercredi 18 décembre 2024 par Marina Cvetkovska

Nature, Published online: 18 December 2024; doi:10.1038/d41586-024-04079-6Aquatic algae called diatoms have been found to use light-sensing proteins as depth indicators. Detecting depth-related changes in the intensity and spectrum of light enables algae to modulate their physiology (...)

Nature

Give ‘science for peace’ a chance

mercredi 18 décembre 2024

Nature, Published online: 18 December 2024; doi:10.1038/d41586-024-04114-6An initiative from two research organizations to boost the role of science in peace-building in Africa needs to be supported.

Nature

Why eating less slows ageing: this molecule is key

mercredi 18 décembre 2024 par Heidi Ledford

Nature, Published online: 18 December 2024; doi:10.1038/d41586-024-04220-5A naturally occurring compound involved in digestion lengthens lifespan in flies and makes old mice more youthful.

Nature

Atmospheric rivers lead to heat extremes

mercredi 18 décembre 2024

Nature, Published online: 18 December 2024; doi:10.1038/d41586-024-04131-5Atmospheric rivers are long, narrow bands of water vapour in the lower atmosphere that often lead to intense precipitation, even at the poles. They also transport heat and energy to the Earth’s surface, causing warmer (...)

Nature

What were some of the biggest stories of 2024? Join us for the Nature Podcast quiz!

mercredi 18 décembre 2024 par Nick Petri? Howe, Emily Bates, Flora Graham, Dan Fox

Nature, Published online: 18 December 2024; doi:10.1038/d41586-024-04227-yIn a fiendish quiz our contestants battle to remember the details of the science stories that made 2024 special.

Nature

Dread and determination: how climate scientists are preparing for Trump 2.0

mercredi 18 décembre 2024 par Alexandra Witze

Nature, Published online: 18 December 2024; doi:10.1038/d41586-024-04221-4Anxiety, uncertainty and a renewed sense of purpose are surging in the community.

Nature

How Los Angeles neighbours partnered to show under-represented students the ‘unspoken rules’ to success

mercredi 18 décembre 2024 par Shi En Kim

Nature, Published online: 18 December 2024; doi:10.1038/d41586-024-03983-1Laurie Barge and Arezoo Khodayari created an internship between NASA’s Jet Propulsion Laboratory and California State University, Los Angeles to launch the careers of students from minority (...)

Nature