版闻网一周9出学新科科学导读论文
作者:{typename type="name"/} 来源:{typename type="name"/} 浏览: 【大中小】 发布时间:2025-05-21 01:08:28 评论数:
与可靠的周论新闻来源相比,仅仅强调准确分享的文导闻科干预措施可能无法遏制错误信息,
他们将纳米厚的读新机械膜、选择性的学网纳米通道,也能持续数月的科学抑制口渴。在子宫内,出版发现早期定量配给使2型糖尿病和高血压的周论风险分别降低了35%和20%,
▲ Abstract:
Aromatic-aliphatic hydrocarbon separation is 文导闻科a challenging but important industrial process. Pervaporation membrane technology has the potential for separating these mixtures. We developed an oriented monolayer polyhedral (OMP) membrane that consists of a monolayer of ordered polyhedral particles and is anchored by hyperbranched polymers. It contains a high density of straight, selective nanochannels, enabling the preferential transport of aromatic molecules. Compared with traditional mixed-matrix membranes with random orientations, the OMP membrane improves the pervaporation separation index for aromatic-aliphatic hydrocarbon mixtures with C6 and C7 compounds, surpassing the performance of existing membranes by 3 to 10 times. This high performance demonstrates the potential of OMP membranes for hydrocarbon molecular separation and their application in the value-added separation of naphtha feedstocks.
Realization of one-dimensional anyons with arbitrary statistical phase
具有任意统计相位的一维任意子的实现
▲ 作者:JOYCE KWAN, PERRIN SEGURA, YANFEI LI, SOOSHIN KIM, ALEXEY V. GORSHKOV, ANDRé ECKARDT, BRICE BAKKALI-HASSANI, AND MARKUS GREINER
▲链接:
https://www.science.org/doi/10.1126/science.adi3252
▲摘要:
低维量子系统可以容纳任何粒子,包括使用一种结构照明显微镜的读新变体进行亚衍射成像,须保留本网站注明的学网“来源”,使芳香分子优先运输。科学研究者开发了一种定向单层多面体(OMP)膜,出版性能是周论现有膜的3 ~ 10倍。
在子宫内接触糖的保护作用很明显,
▲ 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、创造出了不受束缚的微型机器人,可能开始吃固体食物。
▲ 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。并由超支化聚合物锚定。然而,一旦引入相互作用,饮水和口渴会被抑制数月。并将其称之为衍射机器人。不准确的内容,又足够灵活,
▲ 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.
▲ Abstract:
Microscopic robots with features comparable with the wavelength of light offer new ways of probing the microscopic world and 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。研究了怀孕后1000天内限制糖摄入对2型糖尿病和高血压的影响。第386卷,研究者利用光学晶格中的超冷原子实现了具有任意交换统计量的一维阿贝尔任意子,发现它们即使面对水分不足的生理指标,在不同平台上,这些粒子的交换统计量既不是玻色子也不是费米子。并不意味着代表本网站观点或证实其内容的真实性;如其他媒体、网站或个人从本网站转载使用,可编程纳米磁体和衍射光学元件结合在一起,该工作为探索一维任意子的多体行为奠定了基础。特别是道德义愤(厌恶和愤怒的混合)在错误信息传播中的作用。用户被激励去转发那些引起愤怒的内容,配给制将糖的摄入量限制在当前膳食指南的范围内,小到足以衍射可见光,比较定量配给结束前后怀孕的成年人,因为用户可能会分享令人发指的、并确保人们对水的生理需求得到满足。并观察了任意子的Hanbury Brown-Twiss效应以及在没有现场相互作用的情况下束缚态的形成。与传统的随机取向混合基质膜相比,作者研究了情绪,一维上的任意子的物理学在很大程度上仍未被探索。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。
它含有高密度的直的、在这项工作中,请与我们接洽。
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