2024-02-18 16:51:32动物植物
研究人员发现一种罕见的脂肪分子有助于细胞死亡

Columbia researchers have found that a rare type of lipid is a key driver of ferroptosis, a form of cell death discovered by Columbia professor Brent Stockwell.

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2024-02-18 16:51:30动物植物
利用文本分析,科学家绘制了爱尔兰马铃薯饥荒前马铃薯枯萎病的传播图

North Carolina State University researchers used text analytics on both historic and modern writing to reveal more information about the effects and spread of the plant pathogen—now known as Phytophthora infestans—that caused the 1840s Irish potato famine

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2024-02-18 16:51:27动物植物
研究人员确定人类活动是墨西哥中部保护区生物多样性下降的驱动因素

New research shows the diversity of plant and animal life in 14 tropical reserves in Mesoamerica has plummeted since 1990 as roads and cattle ranches have expanded into protected areas. Large mammals, birds, and reptiles are disappearing, while disease-ca

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2024-02-18 16:51:25动物植物
根部微生物可能是一杯味道更好的茶的秘密

You'd think the complex flavor in a quality cup of tea would depend mainly on the tea varieties used to make it. But a study appearing in the journal Current Biology shows that the making of a delicious cup of tea depends on another key ingredient: the c

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2024-02-18 16:51:21动物植物
应用超声波大大加快人类精子的运动速度

A team of engineers at Monash University in Australia has found that exposing human sperm to ultrasound can cause them to swim faster. In their study, published in the journal Science Advances, the group exposed human semen samples to ultrasonic waves and

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2024-02-18 16:51:19动物植物
一种进化上保守的途径,可与基因组寄生虫和平共存

Transposable elements are mobile genetic elements that can relocate within the genome and disrupt the normal function of genes, but are at the same time a source of evolutionary diversity. The lab of Tugce Aktas at the Max Planck Institute for Molecular G

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2024-02-18 16:51:16动物植物
新研究显示,纽约湾是濒危长须鲸全年重要的栖息地

The New York Bight is an important year-round habitat for endangered fin whales, according to new research examining fin whale song patterns.

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2024-02-18 16:51:14动物植物
这一发现可能为许多癌症带来新的RNA疗法

Australian scientists have made a major discovery that could underpin the next generation of RNA-based therapeutics and lead to more potent and longer-lasting RNA-based drugs with an even wider array of potential uses.

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2024-02-18 16:51:12动物植物
研究警告称,误导性的重新造林计划威胁着非洲大片热带草原

New research led by the University of Liverpool reveals the scale of misguided reforestation projects across Africa. The study reveals that an area the size of France is under threat by forest restoration initiatives due to inappropriate restoration in th

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2024-02-18 16:51:09动物植物
塞伦盖蒂的另一幅图景:对食物的竞争推动了地球上剩余的食草动物大规模迁徙

Upending the prevailing theory of how and why multi-species mass-migration patterns occur in Serengeti National Park, researchers from Wake Forest University have confirmed that the millions-strong wildebeest population pushes zebra herds along in competi

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2024-02-18 16:51:07动物植物
研究人员引入了一种新的模型,该模型在个体尺度和生态系统层面建立了生命规则的桥梁

Researchers at Michigan State University and the Carnegie Institution for Science have developed a model that connects microscopic biology to macroscopic ecology, which could deepen our understanding of nature's laws and create new opportunities in ecosy

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2024-02-18 16:51:03动物植物
研究揭示细胞如何控制端粒酶

The natural ends of chromosomes appear alarmingly like broken DNA, much as a snapped spaghetti strand is difficult to distinguish from its intact counterparts. Yet every cell in our bodies must have a way of differentiating between the two because the bes

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