2023-11-20 16:47:35时空
今天的一些地震可能是19世纪地震的余震

In the 1800s, some of the strongest earthquakes in recorded U.S. history struck North America's continental interior. Almost two centuries later, the central and eastern United States may still be experiencing aftershocks from those events, a new study f

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2023-11-20 16:47:34时空
伴随着前所未有的耀斑,恒星尸体显示出生命迹象

After a distant star's explosive death, an active stellar corpse was the likely source of repeated energetic flares observed over several months -- a phenomenon astronomers had never seen before, a Cornell-led team reports in new research published Nov.

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2023-11-20 16:47:34时空
具有骨骼、韧带和肌腱的印刷机器人

3D printing is advancing rapidly, and the range of materials that can be used has expanded considerably. While the technology was previously limited to fast-curing plastics, it has now been made suitable for slow-curing plastics as well. These have decisi

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2023-11-20 16:47:33动物植物
研究表明,气候工程可以减缓南极冰层的流失

Scattering sunlight-reflecting particles in the atmosphere could slow rapid melting in West Antarctica and reduce the risk of catastrophic sea-level rise, according to a study led by Indiana University researchers.

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2023-11-20 16:47:33动物植物
科学家在实验室培育的皮肤上3D打印毛囊

A team led by scientists at Rensselaer Polytechnic Institute has 3D-printed hair follicles in human skin tissue cultured in the lab. This marks the first time researchers have used the technology to generate hair follicles, which play an important role in

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2023-11-20 16:47:32动物植物
没有科学证据表明纳勒迪人的认知高级行为和象征意义

A new study has cast doubt on claims that Homo naledi, a small-brained hominin dating to between 335-241,000 years ago, deliberately buried their dead and produced rock art in Rising Star Cave, South Africa.

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2023-11-20 16:47:32医药卫生
你的生物钟坏了吗?

研究人员正在使用数学模型来更好地了解夏令时、夜班工作、时差甚至深夜手机滚动等干扰对身体昼夜节律的影响。

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2023-11-20 16:47:32动物植物
仅从音频片段和个人照片中创建的逼真的会说话的面孔

A team of researchers from Nanyang Technological University, Singapore (NTU Singapore) has developed a computer program that creates realistic videos that reflect the facial expressions and head movements of the person speaking, only requiring an audio cl

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2023-11-20 16:47:31动物植物
显微镜下细菌的代谢:揭示宿主与微生物相互作用的新方法

The fascinating world of bacteria that live as symbionts or parasites in animal hosts often remains a mystery to researchers. Kiel University (CAU) and the Max Planck Institute for Marine Microbiology in Bremen are contributing to solving this puzzle with

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2023-11-20 16:47:31动物植物
新化合物通过间接靶向钙通道而优于止痛药

A compound -- one of 27 million screened in a library of potential new drugs -- reversed four types of chronic pain in animal studies, according to new research led by NYU College of Dentistry's Pain Research Center and published in the Proceedings o

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2023-11-20 16:47:30动物植物
鉴定一种提高水稻产量的硅转运蛋白

Silicon (Si) is abundant in terrestrial environments and accounts for 0.1% to 10% of a plant's dry weight. Certain plant species show high levels of Si accumulation, and research has identified high Si accumulation as a protective mechanism against abiot

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2023-11-20 16:47:30动物植物
设备“闻”海水以发现、检测新分子

Under the ocean's surface, marine organisms are constantly releasing invisible molecules. Some of the chemical clues reveal which creatures are nearby, while others could be used someday as medications. Now, researchers in ACS Central Science re

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