2024-02-26 16:04:08动物植物
研究人员确定了拟南芥染色质调控的关键参与者

Chromatin is a unique DNA and protein complex that makes up the chromosomes. Specific proteins (histones) wind up the DNA like small cable drums to package the long DNA. A cable drum (consisting of four pairs of histones) with coiled DNA is called a nucle

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2024-02-26 16:04:08前沿信息
研究人员利用二维磁性材料进行节能计算

Experimental computer memories and processors built from magnetic materials use far less energy than traditional silicon-based devices. Two-dimensional magnetic materials, composed of layers that are only a few atoms thick, have incredible properties that

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2024-02-26 16:04:06前沿信息
石墨烯研究:产品众多,无严重危险

Think big. Despite its research topic, this could well be the motto of the Graphene Flagship, which was launched in 2013: With an overall budget of one billion Euros, it was Europe's largest research initiative to date, alongside the Human Brain Flagship

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2024-02-26 16:04:04动物植物
照顾后代的雄性玻璃蛙睾丸较小

A small international team of animal behavior researchers has found that species of glass frogs whose males help care for offspring tend to have smaller testes than species whose males do not help care for offspring. In their study, published in the journ

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2024-02-26 16:04:03前沿信息
利用声波分选微粒的新技术

Thanks to the rapid progress in tiny tech, we've been mainly using microfluidics to sort tiny particles by size. But now, there's a new way to sort them by shape, which could be a big deal for medical tests and chemistry. A recent study introduces a new

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2024-02-26 16:04:02动物植物
巴塔哥尼亚发现的史前哺乳动物物种比预期的要大

A multi-institutional team of archaeologists and paleontologists has unearthed and identified a new species of mammal from the Maastrichtian age. In their paper published in the journal Scientific Reports, the researchers note that the mammal was much lar

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2024-02-26 16:04:01前沿信息
实验室纺制的海绵形成了生长皮肤细胞以愈合伤口的完美支架

A new technique for electrospinning sponges has allowed scientists from the University of Surrey to directly produce 3D scaffolds—on which skin grafts could be grown from the patient's own skin.

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2024-02-26 16:04:00动物植物
研究人员制作核糖体的3D模型,并可视化其制造过程

Human cells contain ribosomes, a complex machine that produces proteins for the rest of the body. Now the researchers have come closer to understanding how the ribosome works.

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2024-02-26 16:03:57前沿信息
研究人员从贻贝和蚕茧中开发止血剂来止血

In recent news, there has been a case where a patient experienced pain due to a surgical procedure involving sutures, resulting in the unintended presence of gauze within the patient's body. Gauze is typically employed to control bleeding during medical

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2024-02-26 16:03:56动物植物
古生物学家发现一条2.4亿年前的“中国龙”

An international team of scientists from China, the U.S. and Europe has studied new fossils of the marine reptile Dinocephalosaurus orientalis. This research has made it possible to fully describe the bizarre, very impressive animal for the first time.

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2024-02-26 16:03:53前沿信息
基于聚合物的可调谐光学元件允许使用可随光切换的超表面

A material coating, whose light refraction properties can be precisely switched between different states, has been developed by an interdisciplinary research team from the Chemistry and Physics departments at the University of Jena. The team, led by Felix

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2024-02-26 16:03:52动物植物
一只小蜜蜂是如何到达法属波利尼西亚的?八个新物种帮助解开一个科学谜团

In 1934, American entomologist Elwood Zimmerman, then an undergraduate student at Berkeley, participated in the "Mangarevan expedition" to Polynesia. Among the samples he collected were three tiny (4 mm long), orange-brown solitary bees found on

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