2025-02-25 13:31:42动物植物
自我监督学习方法可以测试2000万个或更多的细胞

Our bodies are made up of around 75 billion cells. But what function does each individual cell perform and how greatly do a healthy person's cells differ from those of someone with a disease? To draw conclusions, enormous quantities of data must be analy

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2025-02-25 13:19:25动物植物
发现保护细胞免受病毒侵害的独特遗传机制

Researchers at the Technion-Israel Institute of Technology have discovered a unique genetic mechanism that provides cells with rapid and efficient protection against viruses. The findings could lead to the development of new therapeutic strategies.

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2025-02-25 13:09:23动物植物
酸性更强的海洋可能会影响牡蛎的性别

Rising carbon dioxide levels affect more than just the climate; they also affect the chemistry of the oceans. When saltwater absorbs carbon dioxide, it becomes acidic, which alters the aquatic animal ecosystem.

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2025-02-25 12:55:04动物植物
新工具实现了对整个基因组的系统发育学分析

Researchers led by electrical engineers at the University of California San Diego have developed a better way to perform the comparative analysis of entire genomes. This approach can be used to study relationships between different species across geologic

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2025-02-25 12:42:35动物植物
迈向分子世界的视频生成模型

As the capabilities of generative AI models have grown, you've probably seen how they can transform simple text prompts into hyperrealistic images and even extended video clips.

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2025-02-25 12:32:00动物植物
在“疯狂”鸟类中发现的调节雄性睾酮水平的超级酶

A single gene that regulates testosterone levels in a "crazy" species of shore bird controls the development of three wildly different types of males, an international study involving researchers at Simon Fraser University has found.

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2025-02-25 12:19:02动物植物
气候变化已经威胁到中欧一半以上的生产性农业景观

Droughts are a serious consequence of climate change, devastating ecosystems, along with the organisms and communities who inhabit them. Understanding the impact of this upon agricultural productivity is vital to ensure sustainable food supplies and local

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2025-02-25 12:06:28动物植物
发现细菌会永远吃化学物质,甚至是它们的一些有毒副产品

In the quest to take the "forever" out of "forever chemicals," bacteria might be our ally. Most remediation of per- and polyfluoroalkyl substances (PFAS) involves adsorbing and trapping them, but certain microbes can actually break apa

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2025-02-25 11:52:46动物植物
禽流感疫苗推动病毒进化的可能证据

A team of virologists, infectious disease specialists and pathobiologists affiliated with several institutions in China and the U.K. has found possible evidence that bird flu vaccinations are driving virus evolution. In their study published in the journa

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2025-02-22 17:38:18动物植物
在寻找新的更好的酶的过程中,人工智能走在了前列

Enzymes are crucial to life. They are nature's little catalysts. In the gut, they help us digest food. They can enhance perfumes or get laundry cleaner with less energy. Enzymes also make potent drugs to treat disease. Scientists naturally are eager to c

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2025-02-22 17:26:15动物植物
重新发现的化石揭示了4500万年前罕见的鸟类头骨

Around 45 million years ago, a 4.6 foot-tall (1.40 meters) flightless bird called Diatryma roamed the Geiseltal region in southern Saxony-Anhalt. An international team of researchers led by the Martin Luther University Halle-Wittenberg (MLU) and the Senck

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2025-02-22 17:11:45动物植物
最新研究发现,牛鼻射线利用其尾部作为微调天线

A pair of marine biologists at Harvard University has found that one of the main purposes of the cownose ray's tail is to serve as a fine-tuned antenna. In their study published in the Proceedings of the Royal Society B: Biological Sciences, Júlia Chaume

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