2024-03-23 15:02:00动物植物
研究揭示了卷曲桦树的奥秘,并建议用标记在萌芽阶段识别它

Curly—or Karelian—birch is a mysterious tree with a patterned wood texture and a bizarre trunk shape. Unlike the elegant white-stemmed traditional birch, the Karelian one may seem unsightly at first glance: It is a low-growing, sinuous tree with bumps and

阅读全文
2024-03-23 14:49:59动物植物
研究人员设计了一种新的方法来寻找用于靶向治疗疾病的蛋白质

Researchers at the University of Toronto and Sinai Health have created a new platform to identify proteins that can be co-opted to control the stability of other proteins—a new but largely unrealized approach to the treatment of disease.

阅读全文
2024-03-23 14:49:00动物植物
研究人员发明人工智能模型设计新型对抗超级细菌的抗生素

Researchers at McMaster University and Stanford University have invented a new generative artificial intelligence model that can design billions of new antibiotic molecules that are inexpensive and easy to build in the laboratory.

阅读全文
2024-03-23 14:48:57动物植物
研究人员开发了一种价格合理、用户友好的纳升级单细胞反应方法

Scaling down single-cell reactions to the nanoliter level is critical to minimize the risk of contamination, increase reaction efficiency, and reduce costs. Researchers from the Single-cell Center of the Qingdao Institute of Bioenergy and Bioprocess Techn

阅读全文
2024-03-23 14:48:54动物植物
为什么DNA几乎总是右旋螺旋?探索手性的原因

Why is the heart slightly on the left side of the body for most people? Why is DNA almost always a right-handed helix? Same with alpha helices, the building blocks of proteins. Chirality, or handedness, is everywhere in biology, but the reasons can be a m

阅读全文
2024-03-23 14:48:51动物植物
在伊利湖,气候变化扰乱了浮游动物的季节性存在

A new analysis of zooplankton in western Lake Erie shows that their biomass and seasonal behavioral patterns have been drastically altered by human-driven changes in water temperature and food webs.

阅读全文
2024-03-23 14:48:47动物植物
研究发现一种罕见的树脂化石:一只渴望成为蚂蚁的蜘蛛

Arachnophobia can make humans flee at the sight of a brown recluse, black widow or even a daddy long legs, but animal predators of spiders know no such fear.

阅读全文
2024-03-23 14:48:44动物植物
一项新的研究表明,你的狗能理解一些单词“代表”物体

It's no surprise that your dog can learn to sit when you say "sit" and come when called. But a study appearing March 22 in the journal Current Biology has made the unexpected discovery that dogs generally also know that certain words "stan

阅读全文
2024-03-18 16:26:39动物植物
研究人员在西班牙拉里奥哈发现一种新的食肉恐龙

The first dinosaur to be described in La Rioja, Spain, is a spinosaurid about 7–8 meters long with an estimated body mass of 1.5 metric tons. It is bipedal and had mainly piscivorous habits, although, as a good predator, it would also have been capable of

阅读全文
2024-03-18 16:26:36动物植物
研究人员拍摄了一种重要受体的激活

An international team of researchers has succeeded in "filming" the activation of an important receptor. They froze the involved molecules at different points in time and photographed them under the electron microscope. They were then able to pl

阅读全文
2024-03-18 16:26:34动物植物
概念验证研究表明如何在牛奶中生产人胰岛素

An unassuming brown bovine from the south of Brazil has made history as the first transgenic cow capable of producing human insulin in her milk. The advancement, led by researchers from the University of Illinois Urbana-Champaign and the Universidade de S

阅读全文
2024-03-18 16:26:31动物植物
研究人员表示,奥运会塔的建设可能会破坏大溪地珊瑚礁的生态系统

In preparation for the 2024 Olympic surfing competition, a new judging tower is being constructed in the reef lagoon at Teahupo'o, Tahiti. That construction poses a threat to the reef and its ecosystem, according to researchers from the University of Haw

阅读全文
 3114   首页 上一页 220 221 222 223 224 225 226 227 228 229 下一页 尾页