GoKawiilA new simulation models processes such as DNA replication and cell division in a virtual bacterial cell. Plus, China is giving science a billion-dollar spending boost and why national statistics are in trouble.
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A computer generated illustration of a simulated cell in the early stages of division. Credit: Zane Thornburg
Researchers have created a 3D simulation that models DNA replication, cell division and nearly every chemical reaction in a living bacterial cell. This ‘virtual cell’ isn’t a totally faithful recreation of the organism — the team used placeholders for some genes with unknown functions, for example. But it could help researchers understand how the mix of molecules in a cell gives rise to actual life, says computational biophysicist and study co-author Zane Thornburg.
Nature | 4 min read
Reference: Cell paper
The Chinese government has announced plans to increase two of its key science budgets at the country’s biggest political meeting.The government proposes to increase its science and technology budget by 10% this year, and its overall research and development expenditure by at least 7% per year over the next five years — a boost that translates to billions of extra dollars each year. The latter target was set as part of China’s next five-year plan, which will serve as an overarching blueprint for the country’s policies from 2026 to 2030.
Nature | 4 min read
Researchers have, for the first time, cryogenically frozen and then revived mouse brains with some of the brain functionality intact. The team used an ice-free method called vitrification, which preserves tissue in a glass-like state, and a thawing process that preserves living tissue. After the brains were warmed up, wafer-thin slices from the hippocampus showed signs that the structures that support learning and memory had survived. Researchers are looking to test the method for human brains and organs, but observers note that the success rate was low for mice and the results might not translate to larger body parts.
Nature | 7 min read
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