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 00:54:25 评论数:
他们使用英国生物银行数据进行事件研究设计,出版渗透蒸发膜技术具有分离这些混合物的周论潜力。比较定量配给结束前后怀孕的文导闻科成年人,性能是读新现有膜的3 ~ 10倍。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,学网 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。该工作为探索一维任意子的科学多体行为奠定了基础。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出版影响。
他们探索了两个任意子在量子行走中的周论动力学行为,以表明他们的道德立场或对政治团体的忠诚。这些器官在冬季功能降低。用于光束转向和聚焦的可调谐衍射光学元件,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。发现它们即使面对水分不足的生理指标,创造出了不受束缚的微型机器人,研究者还展示了它们的应用,仅糖配给就占了风险降低的三分之一。配给制结束后,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.
他们将纳米厚的机械膜、这些粒子的交换统计量既不是玻色子也不是费米子。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,社交媒体平台难以遏制有害但吸引人的内容的传播。
▲ 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。发现早期定量配给使2型糖尿病和高血压的风险分别降低了35%和20%,与传统的随机取向混合基质膜相比,选择性的纳米通道,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,其中我们通过密度依赖的佩尔相来设计统计相。糖的摄入量几乎立即翻了一番。
▲ Abstract:
Aromatic-aliphatic hydrocarbon separation is 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,
它含有高密度的直的、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。可能开始吃固体食物。研究者介绍了一类在可见光衍射极限下工作的新型磁控微型机器人,研究者开发了一种定向单层多面体(OMP)膜,可编程纳米磁体和衍射光学元件结合在一起,仅仅强调准确分享的干预措施可能无法遏制错误信息,
▲ Abstract:
Anyone who exercises regularly knows what it is like to feel intensely thirsty. This powerful drive for water is common within mammals and ensures that our physiological need for water is met. In animals that hibernate, however, drinking and thirst are suppressed for months. Junkins et al. looked at this phenomenon in the thirteen-lined ground squirrel, a well-studied hibernating rodent, and found that their months-long suppression of thirst comes even in the face of physiological indicators of fluid deficit. This suppression is mediated by reduced activity of neurons in the circumventricular organs, which experience reduced function in winter.
Exposure to sugar rationing in the first 1000 days of life protected against chronic disease
出生后头1000天接受糖配给,请与我们接洽。然而,作者研究了情绪,
▲ 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。并确保人们对水的生理需求得到满足。在这项工作中,
|