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Science News for November 25, 2022


Click release of nitrite

A team of researchers has developed a bioorthogonal molecular system that selectively transports nitrite ions to the endoplasmic reticulum, where they are released, triggering cell death in cancer cells. The system demonstrates synergistic effects with various cancer therapy drugs.

SourceWiley·JournalAngewandte Chemie International Edition·TypeExperimental study·DateNov 25, 2022

City, University of London researcher detects increase in polarization around climate change on social media

A study published in Nature Climate Change found that climate scepticism is growing rapidly on social media, with sceptic tweets shared 16 times more during COP26 than COP21. This increase is attributed to growing 'right-wing activity' opposing climate action, which may be a backlash against climate activist groups.

SourceCity St George’s, University of London·JournalNature Climate Change·TypeObservational study·DateNov 25, 2022

Trends and biases in African large carnivore population assessments: Identifying priorities and opportunities from a systematic review of two decades of research

The study found significant biases in research effort towards lions and against striped hyena, with African wild dogs also receiving less attention. The authors recommend increasing research in under-represented regions, particularly northern, western, and central Africa, to inform conservation decisions.

SourcePeerJ·JournalPeerJ·TypeObservational study·DateNov 25, 2022

The largest source of abiotic methane gas on Earth

A recent study published in National Science Review found that large amounts of methane gas can form during prograde metamorphism in cold subduction zones, particularly in the West Tianshan region of China. The researchers estimated a potential CH4 flux of ~10.8 Mt/y from worldwide modern subduction zones.

SourceScience China Press·JournalNational Science Review·DateNov 25, 2022

DNA sequence enhances understanding origins of jaws

Researchers at Uppsala University have discovered a crucial DNA sequence in jawed vertebrates that plays a major role in shaping the joint surfaces during embryonic development. This finding has significant implications for understanding the evolution of vertebrate jaws, which is believed to have occurred around 423 million years ago.

SourceUppsala University·JournaleLife·TypeExperimental study·DateNov 25, 2022

Poverty linked to Facebook and Instagram addiction in teens

Research finds a strong link between economic inequality and addictive social media use in teenagers, who often escape negative feelings by using these platforms. The study, involving over 179,000 schoolchildren worldwide, highlights the need for new strategies to promote responsible social media use.

SourceMcGill University·JournalInformation Communication & Society·DateNov 25, 2022

Making sense of the muon’s misdemeanours

Researchers studying exotic atom muonium aim to detect deviations from the Standard Model, which could reveal new physics. By measuring energy levels with unprecedented precision, they may uncover evidence for additional particles or forces that explain the muon's misbehavior.

SourcePaul Scherrer Institute·JournalNature Communications·TypeExperimental study·DateNov 25, 2022

Protein shapes indicate Parkinson’s disease

Researchers at ETH Zurich have identified 76 proteins that could serve as biomarkers for Parkinson's disease, with their molecular structures differing between healthy and diseased individuals. The study uses a unique method to analyze protein shapes in cerebrospinal fluid, providing a promising new approach for diagnosis and potential...

SourceETH Zurich·JournalNature Structural & Molecular Biology·DateNov 25, 2022

The whole in a part: Synchronizing chaos through a narrow slice of spectrum

The study demonstrates that chaos synchronization can occur even under constraints of narrow frequency intervals, giving rise to phenomena that could be leveraged for useful operations in ensembles of distant nodes. This breakthrough has potential applications in distributed sensing, such as gathering readings from distant sensors.

SourceTokyo Institute of Technology·JournalChaos Solitons & Fractals·TypeExperimental study·DateNov 25, 2022

Less intensively managed grasslands have higher plant diversity and better soil health, research shows for first time

Researchers found that less intensively managed grasslands had greater diversity of plant species and correlated with better soil health, including increased nitrogen and carbon levels. In contrast, intensively farmed plots showed fewer plant species, but some saw improvements in soil health over time.

SourceUK Centre for Ecology & Hydrology·TypeObservational study·DateNov 25, 2022