Science

The study indicates that human aging happens in two accelerated bursts, at ages 44 and 60. Most molecules studied showed non-linear changes at these ages. These changes are associated with reduced ability to metabolize caffeine and alcohol, muscle injuries, fat accumulation, and increased susceptibility to cardiovascular disorders, kidney issues, and type 2 diabetes. The study suggests making lifestyle changes like drinking less alcohol and exercising more when nearing these ages.

“Engineers have invented a new way to remove health-harming ‘forever chemicals’ from water – using 3D printing.

Researchers at the University of Bath say their method, using ceramic-infused lattices (or ‘monoliths’), removes at least 75% of perfluorooctanoic acid (PFOA), one of the most common perfluoroalkyl and polyfluoroalkyl substance (PFAS), from water, and could become an important tool in future efforts to eliminate the chemicals from water supplies.

Their findings were published this week in The Chemical Engineering Journal.”

[…]

“Testing of the monoliths has surprisingly shown they have become more effective under repeated use – they undergo high-temperature thermal ‘regeneration’ treatment after each use. This is something the researchers are keen to understand more fully with further experimentation.”

SCAR Open Science Conference in Chile: a catalyst for polar research

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The collapse of science: a scientist’s personal account from Gaza

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SCAR Open Science Conference in Chile: a catalyst for polar research

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Big mission science and large infrastructure projects take a systems-based approach. Can we do the same for sustainability science?

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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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