2025-04-19 12:44:11动物植物
研究发现,大白鲨消失后,生态系统遭到破坏

Known for their powerful ability to launch out of the water in pursuit of prey, the loss of great white sharks from False Bay in South Africa has scientists and conservationists concerned about the rippling effects on the ecosystem.

阅读全文
2025-04-19 12:34:29前沿信息
水滴中的纳米金刚石提高了量子传感精度

Combine a garden-variety green laser, microwaves with roughly the energy of your wi-fi, and some diamond dust in drops of water, and what do you get? A precise chemical detection tool.

阅读全文
2025-04-19 12:29:20动物植物
科学家揭开青蛙对抗超级细菌的抗菌秘密

Frogs have thrived for hundreds of millions of years, spreading across virtually every corner of Earth, from tropical jungles to subarctic forests. Throughout their evolution, they have developed remarkable defenses—including previously unreported antibio

阅读全文
2025-04-19 12:18:07前沿信息
受损但未被击败:细菌使用纳米喷枪对攻击进行报复

Some bacteria deploy tiny spearguns to retaliate against rival attacks. Researchers at the University of Basel have mimicked attacks by poking bacteria with an ultra-sharp tip. Using this approach, they have uncovered that bacteria assemble their nanoweap

阅读全文
2025-04-19 12:17:37动物植物
日本科学家率先在灵长类动物中进行非病毒基因递送

Genetic engineering in non-human primates has long been limited by the need for virus-based gene delivery methods. Recently, researchers in Japan successfully used a nonviral system to introduce a transgene—that is, a gene that has been artificially inser

阅读全文
2025-04-19 12:04:05前沿信息
纳米粒子免疫疗法显示出阻止癌症扩散的潜力

Pancreatic cancer remains one of the most challenging tumors to treat, partly because it is often discovered at advanced stages when the disease has already spread, or metastasized. About half of pancreatic cancer patients experience metastasis to the liv

阅读全文
2025-04-19 12:03:51动物植物
新的喷雾技术帮助农药附着在植物叶子上,以减少污染径流

Reducing the amount of agricultural sprays used by farmers—including fertilizers, pesticides, and herbicides—could cut down the amount of polluting runoff that ends up in the environment while at the same time reducing farmers' costs and perhaps even enh

阅读全文
2025-04-19 11:51:47动物植物
多巴胺的一个打击告诉小鸟什么时候它们的唱歌练习得到了回报

In his home office in Durham, Duke neuroscientist Richard Mooney shows a series of images of a bird's brain on song. In one, what looks like a pointillist painting illustrates a young zebra finch's myriad attempts to sound more like an adult, capable of

阅读全文
2025-04-19 11:50:28前沿信息
限制的力量:微小的纳米管如何挤压新材料

An international research project, led by The University of Warwick and the University of Lille, has used nanotube compression to transform the underlying chemistry and physics of a compound, creating a promising new one-dimensional material.

阅读全文
2025-04-19 11:38:22动物植物
诊断技术在三小时内实现了近100%的病原体识别准确率

A joint team of professors—Hajun Kim, Taejoon Kwon, and Joo Hun Kang—from the Department of Biomedical Engineering at UNIST has unveiled a novel diagnostic technique that utilizes artificially designed polymers known as peptide nucleic acid (PNA) as probe

阅读全文
2025-04-19 11:35:35前沿信息
LED的量子点发现带来了更明亮、更环保的显示器

New research by Curtin University has achieved a breakthrough in eco-friendly display technology, creating highly efficient and stable blue quantum dot LEDs (QLEDs) that could power the next generation of televisions, smartphones, VR headsets and energy-e

阅读全文
2025-04-19 11:25:01动物植物
坏死细胞如何促进身体的再生过程

Researchers have shed new light on how tissues in the body are repaired following the damage and premature death of tissue cells.

阅读全文
 12650   首页 上一页 553 554 555 556 557 558 559 560 561 562 下一页 尾页