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Gu Songfen, pioneering designer of Chinese supersonic fighter jets, dies at 96

Aerodynamics expert Gu Songfen has died at 96. He was the chief designer of China’s J-8 fighter jet family – the first home-grown supersonic fighter jet to counter US high-altitude reconnaissance aircraft. Gu was an academician of the Chinese Academy of Sciences and the Chinese Academy of Engineering as well as a researcher at the Aviation Industry Corporation of China (AVIC).

South China Morning Post 9d ago

'All-in-one' platform developed for multiple trait stacking in crops

'All-in-one' platform developed for multiple trait stacking in crops Gaby Clark Scientific Editor Alexander Pol Deputy Editor A major goal of modern crop breeding is to efficiently combine multiple desirable traits by "stacking" the favorable gene variants (alleles) that contribute to those traits in a single crop variety. However, current strategies are often time-consuming and inefficient. Now, a team led by Gao Caixia at the Institute of Genetics and Developmental Biology of the Chinese...

Phys.org 2d ago

RNA-guided transposon mechanics show use of figure-eight intermediate and direct-transfer route

RNA-guided transposon mechanics show use of figure-eight intermediate and direct-transfer route Gaby Clark Scientific Editor Robert Egan Associate Editor IS110 transposons are a large, diverse family of bacterial insertion sequences (IS elements)—small, mobile DNA elements that can move from one genomic location to another. They have recently attracted broad interest due to the finding that some of these transposons use a bridge RNA (bRNA) to recognize both donor DNA and target DNA. Upon...

Phys.org 5d ago

China’s nuclear weapons scientist Du Xiangwan clarifies role in nation’s war on waste

Advertisement China’s nuclear weapons scientist Du Xiangwan clarifies role in nation’s war on waste Veteran physicist has been one of the strongest advocates for waste-to-energy incineration in China 3-MIN READ3-MIN Chao Kongin Beijing One of China’s most prominent nuclear scientists has publicly clarified his role in the country’s rapidly expanding waste-to-energy sector, following years of speculation linking nuclear weapon technologies to municipal waste incineration. In a June 2 press...

South China Morning Post 3d ago

Billions face growing water risk as sediment fills reservoirs faster than expected worldwide

Billions face growing water risk as sediment fills reservoirs faster than expected worldwide Stephanie Baum Scientific Editor Robert Egan Associate Editor Reservoirs around the world are losing storage capacity at an average rate of 7.3% per decade—disproportionately affecting small reservoirs, which together provide water to billions of people. The data come from a study published in Nature Sustainability, which offers the clearest global assessment of reservoir sedimentation to date. In...

Phys.org 5d ago

A first-in-class pulsatile FXR agonist for bile-acid-related liver diseases

Abstract Nuclear receptors are central regulators of metabolism1, yet therapeutic strategies that enforce continuous receptor activation frequently lead to reduced efficacy and unacceptable toxicity. Here we report a first-principles drug design strategy that aligns pharmacokinetics with physiological signalling cycles. We developed linafexor, a potent non-bile-acid agonist of the farnesoid X receptor (FXR)2; it is engineered for rapid systemic clearance, which enables pulsatile receptor...

Nature 18h ago

Worker bees build a 'royal palace' for the honeybee queen

Worker bees build a 'royal palace' for the honeybee queen June 10 : Honeybee queens come from the same ordinary fertilized female eggs as worker bees. So how does one bee become a queen - with the responsibility of serving as the colony's only baby maker - rather than just another worker? Until now, scientists believed it was solely because the chosen bee was served a special diet.

Channel News Asia 5h ago

Half the world's reservoirs could be clogged up with dirt by 2060

Over half of the planet’s freshwater reservoirs will be “functionally dead” by 2060 due to sediment build-up, a study has predicted. Dams block silt, sand and gravel from flowing downstream, so over time this material accumulates in reservoirs, shrinking the space for water. The trapping of sediment can also compromise dam safety and have damaging impacts on downstream ecosystems.

New Scientist 2d ago