2023-11-20 16:47:19动物植物
细菌-病毒军备竞赛为了解快速复杂进化提供了难得的窗口

As conceived by Charles Darwin in the 1800s, evolution is a slow, gradual process during which species adaptations are inherited incrementally over generations. However, today biologists can see how evolutionary changes unfold on much more accelerated tim

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2023-11-20 16:47:18动物植物
团队创造合成酶来解开分子之谜

A University of Texas at Dallas bioengineer has developed synthetic enzymes that can control the behavior of the signaling protein Vg1, which plays a key role in the development of muscle, bone and blood in vertebrate embryos.

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2023-11-20 16:47:18动物植物
微生物计数的新方法加快了研究,减少了浪费,可能会产生新的抗生素

University of Colorado Boulder researchers have developed a new way of counting microorganisms that works as much as 36 times faster than conventional methods, cuts plastic use more than 15-fold and substantially decreases the cost and carbon footprint of

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2023-11-20 16:47:17动物植物
酵母细胞可以产生治疗精神病的药物

Production of biological substances for medicine using genetically engineered yeast cells shows new promising results in basic research from an international team of researchers. In 2022, the researchers attracted international attention by programming th

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2023-11-20 16:47:17动物植物
蜂鸟独特的侧向扑动使它们穿过小孔

Most birds that flit through dense, leafy forests have a strategy for maneuvering through tight windows in the vegetation -- they bend their wings at the wrist or elbow and barrel through.

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2023-11-20 16:47:17动物植物
纽约州蜂蜡中检测到杀虫剂、除草剂和杀菌剂

An analysis of beeswax in managed honeybee hives in New York found a wide variety of pesticide, herbicide and fungicide residues -- exposing current and future generations of bees to long-term toxicity.

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2023-11-20 16:47:16动物植物
尤卡特á;n的水下洞穴中有各种各样的微生物群落

With help from an experienced underwater cave-diving team, Northwestern University researchers have constructed the most complete map to date of the microbial communities living in the submerged labyrinths beneath Mexico's Yucatán Peninsula.

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2023-11-20 16:47:16动物植物
亚磷酸盐之谜——一个科学侦探故事

Our story begins at the end of the 1980s, with a sheet of paper. On this sheet, a scientist calculated that the conversion of the chemical compound phosphite to phosphate would release enough energy to produce the cell's energy carrier -- the ATP molecul

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2023-11-20 16:47:15动物植物
研究发现,野火和干旱对太平洋三个州的私人林地造成112亿美元的损失

Wildfires and drought have led to $11.2 billion in damages to privately held timberland in California, Oregon and Washington over the past two decades, a new Oregon State University study found.

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2023-11-20 16:47:15动物植物
减少盐,降低血压

Nearly everyone can lower their blood pressure, even people currently on blood pressure-reducing drugs, by lowering their sodium intake, reports a new study from Northwestern Medicine, Vanderbilt University Medical Center and the University of Alabama at

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2023-11-20 16:47:14动物植物
在10种深海物种和一个海参目中发现了以前未知的发光

In a new textbook published November 10, 2023, The World of Sea Cucumber, a team of researchers, including Nagoya University professor Manabu Bessho-Uehara, takes us deep into the watery world of sea cucumbers and reveals their ability to emit li

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2023-11-20 16:47:14动物植物
大鼠研究表明,青少年使用激素避孕药可能会改变风险评估

Hormonal contraceptives taken by adolescents may influence development of the brain in a way that alters the recognition of risks, a new study in rats suggests.

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