2025-05-28 19:19:02动物植物
在西班牙发现了2万年前的鲸骨工具

Humans were making tools from whale bones as far back as 20,000 years ago, according to a study conducted by scientists from the Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona (ICTA-UAB), the French National Cen

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2025-05-28 19:06:16动物植物
研究揭示了人类DNA修复过程的复杂分子细节

Researchers have revealed the structural mechanisms of a major DNA repair pathway in human cells.

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2025-05-28 18:55:43动物植物
感知颜色线索可以帮助监测红海的珊瑚健康状况

Coral reefs form a vital part of the marine ecosystem, playing host to diverse species and supporting multiple industries, including fisheries, tourism, and recreation. However, these fragile ecosystems are under increasing threat from climate change, wit

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2025-05-28 18:44:40动物植物
极端干旱会破坏草原的稳定性,削弱优势草的影响

A study published in Ecology Letters reveals that extreme drought conditions are altering the stability of grassland productivity by shifting underlying ecological mechanisms.

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2025-05-28 18:32:52动物植物
红树林蟹利用光学几何结构增强同种信号传导

In the tangled darkness of Southeast Asian mangrove forests, one crab species appears to have evolved a structure that functions like a miniature car headlamp. Researchers at the National University of Singapore have discovered that the facial bands of Pa

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2025-05-28 18:18:19动物植物
新的研究表明,臭虫最有可能是第一种人类害虫

Ever since a few enterprising bed bugs hopped off a bat and attached themselves to a Neanderthal walking out of a cave 60,000 years ago, bed bugs have enjoyed a thriving relationship with their human hosts.

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2025-05-28 14:36:19前沿信息
最小的无机半导体实现了环保的氢气生产

A research team has successfully produced eco-friendly solar hydrogen for the first time based on a quantum semiconductor nanocluster, which is the world's smallest inorganic semiconductor material.

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2025-05-28 14:25:45前沿信息
研究发现,带正电的纳米塑料增加了大肠杆菌的毒力

Nanoplastics are everywhere. These fragments are so tiny they can accumulate on bacteria and be taken up by plant roots; they're in our food, our water, and our bodies. Scientists don't know the full extent of their impact on our health, but new

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2025-05-28 14:12:36前沿信息
MRI获得纳米级升级

Conventional MRI scans, familiar to us from hospitals, have a resolution of about one-tenth of a millimeter, which allows them to image incredibly thin slices of our bodies from head to toe, helping physicians diagnose a variety of medical conditions. Eve

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2025-05-28 13:56:37前沿信息
从薄到大:使用高能辐射源进行经济实惠、更明亮、更快的扫描

Imagine a medical scanner that works faster and produces clearer images, or a radiation detector that pinpoints tiny traces of radioactive material with unprecedented accuracy. These futuristic possibilities are a step closer to reality thanks to new rese

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2025-05-28 13:42:24前沿信息
新工具揭示了DNA纳米结构如何与细胞膜相互作用

Lipid membranes, which form the outer layer of cells, can be engineered to influence cellular functions. For example, adjusting the permeability of the membrane can improve drug delivery. Adding signaling molecules to the membrane surface can also help di

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2025-05-28 13:30:03前沿信息
快速纳米粒子模拟可以促进对抗空气污染的努力

A pioneering method to simulate how nanoparticles move through the air could boost efforts to combat air pollution, suggests a study in the Journal of Computational Physics.

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