Science

Supporting at-risk and displaced Sudanese scientists: offers of assistance, news and resources

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Science at risk: a race against time to protect seeds in Sudan

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Since the genetic code was first deciphered in the 1960s, our genes seemed like an open book. By reading and decoding our chromosomes as linear strings of letters, like sentences in a novel, we can identify the genes in our genome and learn why changes in a gene’s code affect health.

This linear rule of life was thought to govern all forms of life—from humans down to bacteria.

But a new study (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11100668/) by Columbia researchers shows that bacteria break that rule and can create free-floating and ephemeral genes, raising the possibility that similar genes exist outside of our own genome.

“What this discovery upends is the notion that the chromosome has the complete set of instructions that cells use to produce proteins,” says Samuel Sternberg, associate professor of biochemistry & molecular biology at the Vagelos College of Physicians and Surgeons, who led the research with Stephen Tang, an MD/PhD student at the medical school.

“We now know that, at least in bacteria, there can be other instructions not preserved in the genome that are nonetheless essential for cell survival.”

Researchers offer alternatives to Eurocentric ways of doing things

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IPCC call for authors and editors for the “Special Report on Climate Change and Cities”

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IPCC call for authors and editors for a methodology report on inventories for short-lived climate forcers

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Nominations open for the Foundation Fellowship of the Pacific Academy of Sciences

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Fighting disinformation with sunshine: promoting funding transparency in science

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Fighting disinformation with sunshine: promoting funding transparency in science

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https://council.science/news/fighting-disinformation-with-sunshine-promoting-funding-transparency-in-science/?utm_source=rss&utm_medium=rss&utm_campaign=fighting-disinformation-with-sunshine-promoting-funding-transparency-in-science

Olympic spirit and global peace: Insights from Matt Meyer’s keynote address at UNESCO

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Olympic Spirit and Global Peace: Insights from Matt Mayer’s keynote address at UNESCO

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Open Science round-up July

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Science Missions for Sustainability: announcing the shortlisted consortia

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Supporting at-risk and displaced Palestinian scientists: offers of assistance, news and resources

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https://council.science/news/supporting-at-risk-and-displaced-palestinian-scientists/?utm_source=rss&utm_medium=rss&utm_campaign=supporting-at-risk-and-displaced-palestinian-scientists

Science in ruins: Gaza’s scientists call for global support

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Highlights

European beech trees more than 1,500 kilometers apart all drop their fruit at the same time in a grand synchronization event now linked to the summer solstice.

From England to Sweden to Italy — across multiple seas, time zones and climates — somehow these trees “know” when to reproduce. But how?

Their analysis of over 60 years’ worth of seeding data suggests that European beech trees time their masting to the summer solstice and peak daylight.

The discovery of the genetic mechanism that governs this solstice-monitoring behavior could bring researchers closer to understanding many other mysteries of tree physiology.

So it’s easy to see why masting trees synchronize their seed production. Understanding how they do it, however, is more complicated. Plants usually synchronize their reproduction by timing it to the same weather signals.

Then the team stumbled across a clue by accident. One summer evening, Bogdziewicz was sitting on his balcony reading a study which found that the timing of leaf senescence — the natural aging process leaves go through each autumn — depends on when the local weather warms relative to the summer solstice. Inspired by this finding, he sent the paper to his research group and called a brainstorming session.

It’s the first time that researchers have identified day length as a cue for masting. While Koenig cautioned that the result is only correlational, he added that “there’s very little out there speculating on how the trees are doing what they’re doing.”

If the solstice is shown to activate a genetic mechanism, it would be a major breakthrough for the field. Currently, there’s little data to explain how trees behave as they do. No one even knows whether trees naturally grow old and die, Vacchiano said. Ecologists struggle just to study trees: From branches to root systems, the parts of a tree say very little about the physiology of the tree as a whole. What experts do know is that discovering how trees sense their environment will help them answer the questions that have been stumping them for decades.

WorldFAIR: Continuing to transform data to tackle complex challenges in a follow-up project

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‘Science in action’ on display at the 2024 Science Day

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