植物物种多样性支撑生态系统的结构和基本功能，是开展植被修复工程必须考虑的关键问题。多项证据显示，增加植物物种多样性有助于改善生态系统的碳汇功能，因为生态学互补效应可以促使植物群落吸收更多的大气二氧化碳...
阅读全文澳门大学的研究者揭示了肿瘤坏死因子受体2缺乏对小鼠结肠癌生长的影响 TNFR2的异常高水平在多种人类肿瘤中表达，包括结肠癌、卵巢癌、乳腺癌、胆管癌、肾细胞癌、结直肠癌、非小细胞肺癌、非霍奇金淋巴瘤和胸段食道...
阅读全文在一项新的研究中，来自美国伊利诺伊大学厄巴纳-香槟分校的研究人员发现一种新的人工智能工具可以根据酶的氨基酸序列预测其功能，即使是在酶未被研究或理解不深的情况下。他们说，这种称为CLEAN的人工智能工具在准确...
阅读全文肠道细菌或与太空骨流失存在关联 科学家已经发现，宇航员的骨密度在太空中会下降。现在，国际空间站的科学家发现，太空旅行者肠道微生物群的变化可能与骨质流失有关。相关研究近日发表于《细胞报告》。 美国科学家...
阅读全文白头发为何越拔越多？《自然》：干细胞被卡住了 人的头发为什么会随着年龄的增长逐渐花白？人们常说的“白头发越拔越多”有根据吗？近日，美国纽约大学格罗斯曼医学院领衔的研究团队一项研究揭示了这些自然现象背后...
阅读全文Ethics The prenatal specimens were retrieved from elective routine medical abortions at the Departments of Gynecology at Danderyd Hospital and Karolinska Huddinge Hospital. Patients who had decided to...
阅读全文Materials and strains Valerolactam and MANT were purchased from Sigma-Aldrich. Anti-6X His tag antibody (HRP) was from Abcam, where it was diluted 5000-fold for western blot analysis. Indigoidine was ...
阅读全文Infection rate After studying 109,253 sheep (36,440 local and 72,813 imported) slaughtered in Jeddah over a full year, the infection rate for local sheep was 0.67% compared to 2.12% for imported sheep...
阅读全文One of the most well-established tools for modeling the brain is the functional connectivity network, which is constructed from pairs of interacting brain regions. While powerful, the network model is...
阅读全文Between October 1, 2020, and May 30, 2021, 845 patients were admitted in one of the 11 participating ICUs. Among them, 737 had at least one positive SARS-CoV-2 RNA RT-PCR performed in a nasopharyngeal...
阅读全文The production of EPS is a defining property of bacterial biofilms, where the majority of bacteria are thought to spend their lives [28]. A key challenge for bacteria living in biofilms is the potenti...
阅读全文New work from Udeochu, Amin, Huang, and colleagues provides mechanistic insights into how the tau protein engages the cGAS–STING pathway to elicit antiviral responses in Alzheimer’s disease. This si...
阅读全文人力资源社会保障部、中国科协、科技部、国务院国资委于近日发布了《关于评选全国创新争先奖的通知》（人社部〔2023〕27号）的通知。中国昆虫学会按照通知要求在全国理事及各分支机构范围内进行了推荐提名工作。经各...
阅读全文Strains, media, and growth conditions In all cases, experiments were initiated from single colonies picked from agar plates (BD Difco Luria-Bertani Agar Powder, cat #DF0445076), inoculated in 2 mL Lu...
阅读全文Throughout their evolutionary history, bacteria have faced diverse threats from other microorganisms, including competing bacteria, bacteriophages and predators. In response to these threats, they hav...
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