2025-04-20 23:25:50动物植物
古代谷物具有巨大的气候潜力,可能在欧洲的未来发挥关键作用

Sorghum is one of the world's oldest grains and possesses many traits that can benefit food security, climate resilience, and biodiversity. However, the mechanisms behind these traits have long remained a mystery to researchers, which has hindered effici

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2025-04-20 23:15:39动物植物
侏罗纪化石揭示了刺头蠕虫的进化起源

A research team from the Nanjing Institute of Geology and Paleontology of the Chinese Academy of Sciences has identified a fossil acanthocephalan, Juracanthocephalus, from the 160-million-year-old Daohugou Biota in Inner Mongolia, China. This finding was

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2025-04-20 23:11:59前沿信息
量子限制解释了几纳米厚硅片电阻率的急剧上升

Consumer electronic devices are made from materials that we have been using for more than 60 years, mainly silicon, germanium and copper. Why have semiconductor electronics become increasingly fast over this time?

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2025-04-20 23:04:43动物植物
基因组研究提供了过去一百万年猛犸象多样性的快照

A new genomic study has uncovered long-lost genetic diversity in mammoth lineages spanning over a million years, providing new insights into the evolutionary history of these animals.

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2025-04-20 22:56:30前沿信息
揭开纳米级盐晶体形成的秘密

In nature and technology, crystallization plays a pivotal role, from forming snowflakes and pharmaceuticals to creating advanced batteries and desalination membranes. Despite its importance, crystallization at the nanoscale is poorly understood, mainly be

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2025-04-20 22:51:00动物植物
植物中罕见DNA标记的发现挑战了之前的假设

Could it be that one of only three known markers directly targeting the DNA does not exist outside the realm of microbes? Now, researchers led by Xiaoqi Feng at the Institute of Science and Technology Austria (ISTA) have demonstrated that this marker—N4-m

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2025-04-20 22:41:20前沿信息
胆固醇修饰寡核苷酸有望治疗脑部疾病

Getting therapeutic drugs past the blood-brain barrier has long been one of medicine's most difficult challenges, limiting our ability to treat conditions like Alzheimer's disease, Parkinson's disease, and brain cancers. While manipulating gene express

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2025-04-20 22:38:35动物植物
人类细胞的交互式图谱揭示了以前未知的蛋白质功能

Scientists have attempted to map the human cell since the first microscope was invented more than 400 years ago. But many components of the cell still remain uncharted.

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2025-04-20 22:29:45前沿信息
机械联锁的2D链甲解锁了具有变形能力的智能聚合物

Researchers at Westlake University have disclosed a two-dimensional (2D) mechanically interlocked polymer (MIP) that mimics medieval chainmail at the molecular scale. This micrometer-scale 2D material exhibits exceptional flexibility and stiffness, potent

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2025-04-20 22:27:58动物植物
人类细胞复杂的DNA修复系统揭示了癌症潜在的脆弱性

The DNA of human cells consists of a sequence of about 3.1 billion building blocks. Cells go to great lengths to maintain the integrity of this vast store of information. They constantly untangle knots in the DNA strand and create new chemical bonds when

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2025-04-20 22:16:15前沿信息
可定制的荧光纳米粘土提供了多种应用

Imagine tiny LEGO pieces that automatically snap together to form a strong, flat sheet. Then, scientists add special chemical "hooks" to these sheets to attach glowing molecules called fluorophores.

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2025-04-20 22:13:46动物植物
寄生虫缩小椋鸟的活动范围,影响下一代的生存

Infections with parasites often entail no recognizable signs in many wildlife species, but can still have negative effects across generations. Infected animals often have a slightly reduced body size and their offspring have a harder start in life.

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