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.

阅读全文
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

阅读全文
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.

阅读全文
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

阅读全文
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

阅读全文
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

阅读全文
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

阅读全文
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

阅读全文
2023-11-20 16:47:29动物植物
对磷的不同看法:细菌在这个过程中使用有机磷并释放甲烷

Off Barbados, researchers from Bremen have investigated how bacteria inadvertently release methane in order to obtain phosphorus -- with significant effects on atmospheric greenhouse gases.

阅读全文
2023-11-20 16:47:29动物植物
亚洲疟疾蚊子如何在非洲传播抗药性疟疾的第一个证据

Malaria is caused by a parasite which is spread by the bite of blood-sucking mosquitoes. According to the WHO, there were an estimated 247 million cases of malaria worldwide in 2021 with over 600,000 deaths, mostly in Africa.  Children under 5 accoun

阅读全文
2023-11-20 16:47:28动物植物
头虱的进化反映了人类在美洲的迁徙和殖民

A new analysis of lice genetic diversity suggests that lice came to the Americas twice -- once during the first wave of human migration across the Bering Strait, and again during European colonization. Marina Ascunce, currently at the USDA-ARS, and collea

阅读全文
2023-11-20 16:47:28动物植物
五分之一的欧洲红色名录动植物物种可能面临灭绝风险

A new analysis of 14,669 threatened species of plants and animals found in Europe reveals that about one fifth face the risk of extinction, and that agricultural land-use change poses a significant threat to these species. Axel Hochkirch of the Musé

阅读全文
 3154   首页 上一页 250 251 252 253 254 255 256 257 258 259 下一页 尾页