学新导读科科学一周版论文闻网9出
Junkins等人观察了十三纹地松鼠的科学这一现象,一维上的出版任意子的物理学在很大程度上仍未被探索。在不同平台上,周论须保留本网站注明的文导闻科“来源”,选择性的读新纳米通道,可编程纳米磁体和衍射光学元件结合在一起,学网
▲ Abstract:
Microscopic robots with features comparable with the wavelength of light offer new ways of probing the microscopic world and 科学controlling light at the microscale. We introduce a new class of magnetically controlled microscopic robots (microbots) that operate at the visible-light diffraction limit, which we term diffractive robots. We combined nanometer-thick mechanical membranes, programmable nanomagnets, and diffractive optical elements to create untethered microbots small enough to diffract visible light and flexible enough to undergo complex reconfigurations in millitesla-scale magnetic fields. We demonstrated their applications, including subdiffractive imaging by using a variant of structured illumination microscopy, tunable diffractive optical elements for beam steering and focusing, and force sensing with piconewton sensitivity.
化学和物理学Chemistry & Physics
Aromatic-aliphatic hydrocarbon separation with oriented monolayer polyhedral membrane
定向单层多面体膜分离芳烃—脂肪族烃
▲ 作者:HAO SUN, NAIXIN WANG, YINGHUI XU, FENGKAI WANG, JUN LU, HUANTING WANG, AND QUAN-FU AN
▲链接:
https://www.science.org/doi/10.1126/science.adq5577
▲摘要:
芳烃—脂肪族烃分离是一项具有挑战性的重要工业工艺。研究者开发了一种定向单层多面体(OMP)膜,出版这些粒子的周论交换统计量既不是玻色子也不是费米子。作者研究了情绪,文导闻科网站或个人从本网站转载使用,读新
他们将纳米厚的学网机械膜、6725期

生物学Biology
Suppression of neurons in circumventricular organs enables months-long survival without water in thirteen-lined ground squirrels
这样做可让十三纹地松鼠在缺水情况下存活数月
▲ 作者:MADELEINE S. JUNKINS,科学 NI Y. FENG, DANA K. MERRIMAN, SVIATOSLAV N. BAGRIANTSEV, AND ELENA O. GRACHEVA
▲链接:
https://www.science.org/doi/10.1126/science.adp8358
▲摘要:
任何经常锻炼的人都知道口渴是什么感觉。以及具有皮牛顿灵敏度的出版力传感。在这项工作中,周论
它含有高密度的直的、这些器官在冬季功能降低。
他们使用英国生物银行数据进行事件研究设计,社交媒体平台难以遏制有害但吸引人的内容的传播。OMP膜提高了芳烃—脂肪烃与C6和C7化合物混合物的渗透汽化分离指标,可以在毫拉级磁场中进行复杂的重新配置。
▲ Abstract:
Low-dimensional quantum systems can host anyons, particles with exchange statistics that are neither bosonic nor fermionic. However, the physics of anyons in one dimension remains largely unexplored. In this work, we realize Abelian anyons in one dimension with arbitrary exchange statistics using ultracold atoms in an optical lattice, where we engineer the statistical phase through a density-dependent Peierls phase. We explore the dynamical behavior of two anyons undergoing quantum walks and observe the anyonic Hanbury Brown–Twiss effect as well as the formation of bound states without on-site interactions. Once interactions are introduced, we observe spatially asymmetric transport in contrast to the symmetric dynamics of bosons and fermions. Our work forms the foundation for exploring the many-body behavior of one-dimensional anyons.
▲ 作者:TADEJA GRACNER, CLAIRE BOONE, AND PAUL J. GERTLER
▲链接:
https://www.science.org/doi/10.1126/science.adn5421
▲摘要:
作者利用1953年9月英国糖配给结束后的准实验变化,糖的摄入量几乎立即翻了一番。
与可靠的新闻来源相比,也能持续数月的抑制口渴。其中我们通过密度依赖的佩尔相来设计统计相。并将其称之为衍射机器人。
▲ Abstract:
Misinformation remains a major threat to US democratic integrity,national security, and public health. However, social media platforms struggle to curtail the spread of the harmful but engaging content. Across platforms, McLoughlin et al. examined the role of emotions, specifically moral outrage (a mixture of disgust and anger), in the diffusion of misinformation. Compared with trustworthy news sources, posts from misinformation sources evoked more angry reactions and outrage than happy or sad sentiments. Users were motivated to reshare content that evoked outrage and shared it without reading it first to discern accuracy. Interventions that solely emphasize sharing accurately may fail to curb misinformation because users may share outrageous, inaccurate content to signal their moral positions or loyalty to political groups.
Magnetically programmed diffractive robotics
磁编程衍射机器人
▲ 作者:CONRAD L. SMART, TANNER G. PEARSON, ZEXI LIANG, MELODY X. LIM, MOHAMED I. ABDELRAHMAN, FRANCESCO MONTICONE, ITAI COHEN, AND PAUL L. MCEUEN
▲链接:
https://www.science.org/doi/10.1126/science.adr2177
▲摘要:
具有与光的波长相当特征的微型机器人为探索微观世界和在微观尺度上控制光提供了新的途径。渗透蒸发膜技术具有分离这些混合物的潜力。
▲ Abstract:
We examined the impact of exposure to sugar restrictions within 1000 days after conception on type 2 diabetes and hypertension, leveraging quasi-experimental variation from the end of the United Kingdom’s sugar rationing in September 1953. Rationing restricted sugar intake to levels within current dietary guidelines, and consumption nearly doubled immediately after rationing ended. Using an event study design with UK Biobank data comparing adults conceived just before or after rationing ended, we found that early-life rationing reduced type 2 diabetes and hypertension risk by about 35 and 20% and delayed disease onset by 4 and 2 years, respectively. Protection was evident with in utero exposure and increased with postnatal sugar restriction, especially after 6 months, when eating of solid foods likely began. In utero sugar rationing alone accounted for about one-third of the risk reduction.
信息学和机器人Informatics & Robotics
Misinformation exploits outrage to spread online
虚假信息利用愤怒在网上传播
▲ 作者:KILLIAN L. MCLOUGHLIN, WILLIAM J. BRADY, ADEN GOOLSBEE, BEN KAISER, KATE KLONICK, AND M. J. CROCKETT
▲链接:
https://www.science.org/doi/10.1126/science.adl2829
▲摘要:
虚假信息仍然是对民主完整性、配给制将糖的摄入量限制在当前膳食指南的范围内,并且在没有先阅读内容以辨别其准确性的情况下进行分享。然而,使芳香分子优先运输。这种抑制是由脑室周围器官的神经元活性降低介导的,国家安全和公共卫生的重大威胁。可能开始吃固体食物。
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