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Sock. Something. Um. 袜子。某物。嗯。
IF 64.8 1区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2026-03-25 DOI: 10.1038/d41586-026-00614-9
Daniel Roop
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引用次数: 0
Electrochemical corrosion accompanies dendrite growth in solid electrolytes 电化学腐蚀伴随着固体电解质中枝晶的生长
IF 64.8 1区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2026-03-25 DOI: 10.1038/s41586-026-10279-z
Cole D. Fincher, Colin Gilgenbach, Christian Roach, Rachel Osmundsen, Aubrey Penn, Michael D. Thouless, W. Craig Carter, Brian W. Sheldon, James M. LeBeau, Yet-Ming Chiang
Charging rates, cycling performance and safety of solid-state batteries using metal negative electrodes are often limited by dendrites1,2,3, the growth of which depends on coupling between electrochemical and mechanical driving forces. Previously, it has been assumed that dendrites propagate when plating-induced stresses reach the fracture stress of the solid electrolyte. Here we show that dendrites can propagate at far lower stresses. Using operando birefringence microscopy4, we directly measure stresses around growing dendrites in garnet Li6.6La3Zr1.6Ta0.4O12, a highly stable solid electrolyte5,6,7. Plating-induced stresses are present throughout growth and approach the mechanical fracture stress for the slowest-growing dendrites. As current densities and dendrite velocities increase, the stresses accompanying dendrite growth surprisingly decrease, with dendrite propagation occurring at stresses up to 75% lower than under mechanical load alone. Cryogenic scanning transmission electron microscopy (STEM) of dendrites propagated at high current reveals electrolyte decomposition to new phases, associated with which is a net molar volume contraction. The electrochemically induced mode of embrittlement may be mitigated through understanding and control of the nature of phase transitions accompanying instability.
使用金属负极的固态电池的充电速率、循环性能和安全性往往受到枝晶的限制1,2,3,枝晶的生长取决于电化学和机械驱动力之间的耦合。以前,人们认为当镀引起的应力达到固体电解质的断裂应力时,枝晶就会扩展。在这里,我们表明树突可以在低得多的应力下繁殖。利用操作双折射显微镜,我们直接测量了石榴石Li6.6La3Zr1.6Ta0.4O12(一种高度稳定的固体电解质)生长枝晶周围的应力5,6,7。在生长最慢的枝晶中,镀银诱导的应力贯穿整个生长过程,接近机械断裂应力。随着电流密度和枝晶速度的增加,伴随枝晶生长的应力惊人地降低,在应力比单独机械载荷低75%的情况下枝晶的扩展发生。低温扫描透射电子显微镜(STEM)显示,在大电流下扩展的枝晶的电解质分解成新的相,与此相关的是净摩尔体积收缩。通过理解和控制伴随不稳定性的相变的性质,可以减轻电化学诱导的脆化模式。
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引用次数: 0
Retraction Note: Multisensory learning binds neurons into a cross-modal memory engram. 注:多感觉学习将神经元结合成一个跨模态记忆印痕。
IF 48.5 1区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2026-03-25 DOI: 10.1038/s41586-026-10355-4
Zeynep Okray, Pedro F Jacob, Ciara Stern, Kieran Desmond, Nils Otto, Clifford B Talbot, Paola Vargas-Gutierrez, Scott Waddell
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引用次数: 0
Anticancer antibodies can evolve to cause autoimmune brain disease. 抗癌抗体可以进化成自身免疫性脑部疾病。
IF 48.5 1区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2026-03-25 DOI: 10.1038/d41586-026-00919-9
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引用次数: 0
'Grade inflation' hits PhD students. What's behind the increase? “分数膨胀”打击博士生。增长的背后是什么?
IF 48.5 1区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2026-03-25 DOI: 10.1038/d41586-026-00952-8
Mariana Lenharo
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引用次数: 0
Who let the wolves in? Genetic record for domestic dogs pushed back by 5,000 years. 谁让狼群进来的?家犬的基因记录可以追溯到5000年前。
IF 48.5 1区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2026-03-25 DOI: 10.1038/d41586-026-00900-6
Ewen Callaway
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引用次数: 0
A cancer-promoting fusion protein acts during embryonic brain development. 一种促进癌症的融合蛋白在胚胎大脑发育过程中起作用。
IF 48.5 1区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2026-03-25 DOI: 10.1038/d41586-026-00924-y
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引用次数: 0
How to build an AI scientist: first peer-reviewed paper spills the secrets. 如何培养一名人工智能科学家:第一篇同行评议论文泄露了秘密。
IF 64.8 1区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2026-03-25 DOI: 10.1038/d41586-026-00899-w
Davide Castelvecchi
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引用次数: 0
Genomic history of early dogs in Europe 欧洲早期狗的基因组史
IF 64.8 1区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2026-03-25 DOI: 10.1038/s41586-026-10112-7
Anders Bergström, Anja Furtwängler, Sarah Johnston, Erika Rosengren, Abagail Breidenstein, Thomas Booth, Jesse B. McCabe, Jessica Peto, Mia Williams, Monica Kelly, Frankie Tait, Chris Baumann, Rita Radzeviciute, Christopher Barrington, Kyriaki Anastasiadou, Alexandre Gilardet, Isabelle Glocke, Mattias Sherman, Anastasia Brativnyk, Alexander Herbig, Kay Prüfer, Saskia Pfrengle, Joscha Gretzinger, Tatiana R. Feuerborn, Ella Reiter, Anna Linderholm, Sophy Charlton, Fernando Racimo, Lea Mikkola, Hugo Anderson-Whymark, Douglas Baird, Anne Birgitte Gotfredsen, Hervé Bocherens, Anne Bridault, Rainer Brocke, Dorothée G. Drucker, Andrew S. Fairbairn, Laurent Frantz, Boris Gasparyan, Liane Giemsch, Mietje Germonpré, Luc Janssens, Andrew W. Kandel, Kurt Kjær, Martina Lázničková-Galetová, Daniel Loponte, Ola Magnell, Louise Martin, Susanne C. Münzel, Gökhan Mustafaoğlu
The earliest morphologically identifiable dogs are from Europe and date to at least 14,000 years ago1,2,3,4,5, although early remains are also found in other regions. The origin of early dogs in Europe, and their relationships to other dogs, has remained elusive in the absence of genome-wide data. Similarly, although dogs were the only domestic animal to predate agriculture, little is known about how the arrival of Neolithic farmers from Southwest Asia affected the dogs living with European Mesolithic hunter-gatherers. Here we analysed 216 canid remains, including 181 from Palaeolithic and Mesolithic Europe. We developed a genome-wide capture approach that enriched endogenous DNA by 10–100-fold and could distinguish dog from wolf ancestry for 141 of 216 remains. The oldest dog data that we recovered are from a 14,200-year-old dog from the Kesslerloch site in Switzerland, and we find that it shares ancestry with later worldwide dogs—inconsistent with the hypothesis that European Upper Palaeolithic dogs derived wholly from a separate domestication process. The Kesslerloch dog already displays more affinity to Mesolithic, Neolithic and present-day European dogs than to Asian dogs, demonstrating that dog genetic diversification had started well before 14,200 years ago. We find a Neolithic influx of Southwest Asian ancestry into Europe, but this seems to have been of smaller magnitude than in humans, suggesting that Mesolithic dogs contributed substantially to Neolithic, and, ultimately, probably also modern, European dogs.
最早的形态上可识别的狗来自欧洲,可追溯到至少14000年前,尽管在其他地区也发现了早期的遗骸。由于缺乏全基因组数据,欧洲早期狗的起源以及它们与其他狗的关系仍然难以捉摸。同样,尽管狗是唯一一种出现在农业之前的家畜,但人们对来自西南亚的新石器时代农民如何影响与欧洲中石器时代狩猎采集者生活在一起的狗知之甚少。在这里,我们分析了216具犬科动物遗骸,其中有181具来自旧石器时代和中石器时代的欧洲。我们开发了一种全基因组捕获方法,将内源DNA富集10 - 100倍,并在216份遗骸中区分出141份狗和狼的祖先。我们找到的最古老的狗的数据来自瑞士凯斯勒洛克遗址的一只14200年前的狗,我们发现它与后来世界各地的狗有共同的祖先——这与欧洲旧石器时代晚期的狗完全来自一个单独的驯化过程的假设不一致。凯斯勒洛克犬与中石器时代、新石器时代和现代欧洲犬的亲缘关系已经超过了与亚洲犬的亲缘关系,这表明狗的基因多样化早在14200年前就开始了。我们发现新石器时代西南亚人的祖先涌入欧洲,但这似乎比人类的规模要小,这表明中石器时代的狗对新石器时代的狗有很大贡献,最终可能也有现代欧洲狗。
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引用次数: 0
Rapid concerted switching of the neural code in the inferotemporal cortex 颞下皮层神经密码的快速协调转换
IF 64.8 1区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2026-03-25 DOI: 10.1038/s41586-026-10267-3
Yuelin Shi, Dasheng Bi, Janis K. Hesse, Frank F. Lanfranchi, Shi Chen, Doris Y. Tsao
A fundamental paradigm in neuroscience is that neurons represent the world through fixed tuning functions, with stable mappings from stimulus features to firing rates1. Here, we report that tuning can instead shift rapidly and coherently across a neural population, enabling a dynamic transition from detecting a broad category to discriminating individual exemplars. We set out to address a longstanding debate in visual neuroscience about whether the inferotemporal cortex uses a specialized code for specific object categories or a general-purpose code that applies to all objects. We found that face-selective cells in macaque inferotemporal cortex initially adopted a general code optimized for face detection. However, after a rapid concerted population event lasting less than 20 ms, the neural code transformed into a face-specific one, with two striking features: response gradients to principal detection-related dimensions reversed direction, and new tuning emerged for multiple higher-dimensional features that support fine face discrimination. These dynamics in face patches were specific to face stimuli and did not occur in response to non-face objects. Thus, for faces, face cells transition from detection to discrimination by switching from an object-general code to a face-specific one. More broadly, our findings indicate that there is a previously unknown mechanism for neural representation: concerted stimulus-dependent switching of the neural code used by a cortical area.
神经科学的一个基本范例是,神经元通过固定的调谐函数来代表世界,具有从刺激特征到放电速率的稳定映射1。在这里,我们报告了调谐可以在神经群体中快速连贯地转移,从而实现从检测广泛类别到区分单个样本的动态过渡。我们着手解决视觉神经科学中一个长期存在的争论,即颞下皮层是使用特定对象类别的专门代码还是适用于所有对象的通用代码。我们发现猕猴颞下皮层的人脸选择细胞最初采用了一种优化的人脸检测通用代码。然而,在持续不到20毫秒的快速协调人群事件后,神经编码转变为特定于人脸的神经编码,具有两个显著特征:对主要检测相关维度的响应梯度反转方向,以及对支持精细人脸识别的多个高维特征出现新的调谐。这些面部斑块的动态是特定于面部刺激的,而不会发生在非面部物体的反应中。因此,对于人脸,人脸细胞通过从对象通用代码切换到特定于人脸的代码,从检测过渡到识别。更广泛地说,我们的研究结果表明,存在一种以前未知的神经表征机制:皮层区域使用的神经编码的协同刺激依赖开关。
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引用次数: 0
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Nature
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