Science Bulletin最新文献_第8页

Nutrient stress-primed microbial communities improve plant resilience 营养胁迫激发的微生物群落能提高植物的抗逆性

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-30 DOI: 10.1016/j.scib.2024.04.042

引用次数: 0

Oceanic lithosphere-asthenosphere decoupling is required for the functioning of plate tectonics 板块构造的运作需要海洋岩石圈-热成层脱钩。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-30 DOI: 10.1016/j.scib.2024.08.024

Yaoling Niu

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Laboratorial radiative shocks with multiple parameters and first quantifying verifications to core-collapse supernovae 具有多个参数的实验室辐射冲击以及对核心塌缩超新星的首次量化验证。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-30 DOI: 10.1016/j.scib.2024.08.022

Lu Zhang , Jianhua Zheng , Zhenghua Yang , Tianming Song , Shuai Zhang , Tong Liu , Yunfeng Wei , Longyu Kuang , Longfei Jing , Zhiwei Lin , Liling Li , Hang Li , Jinhua Zheng , Pin Yang , Yuxue Zhang , Zhiyu Zhang , Yang Zhao , Zhibing He , Ping Li , Dong Yang , Yongkun Ding

引用次数: 0

A century of enduring legacy bodes well for future success of the Ocean University of China 一个世纪的持久传承预示着中国海洋大学未来的成功。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-30 DOI: 10.1016/j.scib.2024.09.012

Wenju Cai , Minhan Dai , Renhe Zhang

引用次数: 0

An emerging quaternary semiconductor nanoribbon with gate-tunable anisotropic conductance 具有门控可调各向异性电导的新兴四元半导体纳米带

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-30 DOI: 10.1016/j.scib.2024.07.025

Shaolong Jiang , Fuchen Hou , Shengfeng Zeng , Yubo Zhang , Erding Zhao , Yilin Sun , Liyun Zhao , Cheng Zhang , Mengyuan Jia , Jun-Feng Dai , Mingyuan Huang , Qing Zhang , Xiaolong Zou , Yanfeng Zhang , Junhao Lin

{"title":"An emerging quaternary semiconductor nanoribbon with gate-tunable anisotropic conductance","authors":"Shaolong Jiang , Fuchen Hou , Shengfeng Zeng , Yubo Zhang , Erding Zhao , Yilin Sun , Liyun Zhao , Cheng Zhang , Mengyuan Jia , Jun-Feng Dai , Mingyuan Huang , Qing Zhang , Xiaolong Zou , Yanfeng Zhang , Junhao Lin","doi":"10.1016/j.scib.2024.07.025","DOIUrl":"10.1016/j.scib.2024.07.025","url":null,"abstract":"<div><div>Two-dimensional noble transition metal chalcogenide (NTMC) semiconductors represent compelling building blocks for fabricating flexible electronic and optoelectronic devices. While binary and ternary compounds have been reported, the existence of quaternary NTMCs with a greater elemental degree of freedom remains largely unexplored. This study presents the pioneering experimental realization of a novel semiconducting quaternary NTMC material, AuPdNaS<sub>2</sub>, synthesized directly on Au foils through chemical vapor deposition. The ribbon-shaped morphology of the AuPdNaS<sub>2</sub> crystal can be finely tuned to a thickness as low as 9.2 nm. Scanning transmission electron microscopy reveals the atomic arrangement, showcasing robust anisotropic features; thus, AuPdNaS<sub>2</sub> exhibits distinct anisotropic phonon vibrations and electrical properties. The field-effect transistor constructed from AuPdNaS<sub>2</sub> crystal demonstrates a pronounced anisotropic conductance (<em>σ</em><sub>max</sub>/<em>σ</em><sub>min</sub> = 3.20) under gate voltage control. This investigation significantly expands the repertoire of NTMC materials and underscores the potential applications of AuPdNaS<sub>2</sub> in nano-electronic devices.</div></div>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"69 20","pages":"Pages 3228-3236"},"PeriodicalIF":18.8,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141705116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Discovery and engineering of ChCas12b for precise genome editing 发现并设计用于精确基因组编辑的 ChCas12b

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-30 DOI: 10.1016/j.scib.2024.06.012

引用次数: 0

Coordination-regulated epitaxial growth for 2D/3D perovskite vertical alignment heterostructure 二维/三维过氧化物垂直排列异质结构的配位调节外延生长。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-30 DOI: 10.1016/j.scib.2024.08.034

Guoxiang Zhao , Yuan Chen , Shan Cong , Lutao Li , Chen Wang , Xinyu Du , Ruirui Liu , Jing Lu , Yu Liu , Gaoyuan Chen , Sihan Zhang , Liya Zhang , Mark Hermann Rummeli , Guifu Zou

引用次数: 0

Iterative design of polymer fabric cathode for metal-ion batteries 迭代设计用于金属离子电池的聚合物织物阴极。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-30 DOI: 10.1016/j.scib.2024.08.010

Jun Guo , Hongbo Chen , Dapeng Wang , Wanqiang Liu , Gang Huang , Xinbo Zhang

{"title":"Iterative design of polymer fabric cathode for metal-ion batteries","authors":"Jun Guo , Hongbo Chen , Dapeng Wang , Wanqiang Liu , Gang Huang , Xinbo Zhang","doi":"10.1016/j.scib.2024.08.010","DOIUrl":"10.1016/j.scib.2024.08.010","url":null,"abstract":"<div><div>Organic electrode materials (OEMs) have attracted significant attention for use in aqueous zinc-ion batteries (AZIBs) because of their abundant resources and flexible designability. However, the development of high-performance OEMs is strongly hindered by their high solubility, poor conductivity, sluggish ion diffusion kinetics, and difficult coordination toward Zn<sup>2+</sup>. Herein, inspired by fabric crafts, we have designed a robust polymer fabric through the iterative evolution of the building blocks from point to line and plane. The evolution from point to line could not only improve the structural stability and electrical conductivity but also adjust the active site arrangement to enable the storage of Zn<sup>2+</sup>. In addition to further boosting the aforementioned properties, the evolution from line to plane could also facilitate the construction of noninterference channels for ion migration. Accordingly, the poly(1,4,5,8-naphthalenetetracarboxylic dianhydride/2,3,5,6-tetraaminocyclohexa-2,5-diene-1,4-dione) (PNT) polymer fabric has the most enhanced structural stability, optimized active site arrangement, improved electrical conductivity, and suitable ion channels, resulting in a record-high capacity retention of 96% at a high mass loading of 56.9mg cm<sup>−2</sup> and a stable cycle life of more than 20,000 cycles at 150C (1C=200 mA g<sup>−1</sup>) in AZIBs. In addition, PNT exhibits universality for a wide range of ions in organic electrolyte systems, such as Li/Na/K-ion batteries. Our iterative design of polymer fabric cathode has laid the foundation for the development of advanced OEMs to promote the performance of metal-ion batteries.</div></div>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"69 20","pages":"Pages 3237-3246"},"PeriodicalIF":18.8,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142054575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reduction in polycyclic aromatic hydrocarbon exposure in Beijing following China’s clean air actions 中国开展清洁空气行动后，北京的多环芳烃暴露量减少。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-30 DOI: 10.1016/j.scib.2024.08.015

Yan Lin , Xiaodi Shi , Xinghua Qiu , Xing Jiang , Jinming Liu , Peiwen Zhong , Yihui Ge , Chi-Hong Tseng , Junfeng (Jim) Zhang , Tong Zhu , Jesus A Araujo , Yifang Zhu

{"title":"Reduction in polycyclic aromatic hydrocarbon exposure in Beijing following China’s clean air actions","authors":"Yan Lin , Xiaodi Shi , Xinghua Qiu , Xing Jiang , Jinming Liu , Peiwen Zhong , Yihui Ge , Chi-Hong Tseng , Junfeng (Jim) Zhang , Tong Zhu , Jesus A Araujo , Yifang Zhu","doi":"10.1016/j.scib.2024.08.015","DOIUrl":"10.1016/j.scib.2024.08.015","url":null,"abstract":"<div><div>Exposure to polycyclic aromatic hydrocarbons (PAHs) in the Chinese population was among the highest globally and associated with various adverse effects. This study examines the impact of China’s two-phase clean air initiatives, namely the Air Pollution Prevention and Control Action Plan (APPCAP) in 2013–2017 and the Blue-Sky Defense War (BSDW) in 2018–2020, on PAH levels and human exposures in Beijing. To evaluate the effects of APPCAP, we measured 16 PAHs in 287 PM<sub>2.5</sub> samples collected in Beijing and 9 PAH metabolites in 358 urine samples obtained from 54 individuals who traveled from Los Angeles to Beijing between 2014 and 2018. The concentration of PM<sub>2.5</sub>-bound benzo[a]pyrene equivalents (BaPeq) decreased by 88.5% in 2014–2018 due to reduced traffic, coal, and biomass emissions. PAH metabolite concentrations in travelers’ urine decreased by 52.3% in Beijing, correlated with changes in PM<sub>2.5</sub> and NO<sub>2</sub> levels. In contrast, no significant changes were observed in Los Angeles. To evaluate BSDW’s effects, we collected 123 additional PM<sub>2.5</sub> samples for PAH measurements in 2019–2021. We observed sustained reductions in BaPeq concentrations attributable to reductions in coal and biomass emissions during the BSDW phase, but those from traffic sources remained unchanged. After accounting for meteorological factors, China’s two-phase clean air initiatives jointly reduced Beijing’s PM<sub>2.5</sub>-bound BaPeq concentrations by 96.6% from 2014 to 2021. These findings provide compelling evidence for the effectiveness of China’s clean air actions in mitigating population exposure to PAHs in Beijing.</div></div>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"69 20","pages":"Pages 3283-3290"},"PeriodicalIF":18.8,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142054578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strong interlayer magnetic exchange coupling in La3Ni2O7−δ revealed by inelastic neutron scattering 非弹性中子散射揭示 La3Ni2O7- 中的强层间磁交换耦合

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-30 DOI: 10.1016/j.scib.2024.07.030

Tao Xie , Mengwu Huo , Xiaosheng Ni , Feiran Shen , Xing Huang , Hualei Sun , Helen C. Walker , Devashibhai Adroja , Dehong Yu , Bing Shen , Lunhua He , Kun Cao , Meng Wang

{"title":"Strong interlayer magnetic exchange coupling in La3Ni2O7−δ revealed by inelastic neutron scattering","authors":"Tao Xie , Mengwu Huo , Xiaosheng Ni , Feiran Shen , Xing Huang , Hualei Sun , Helen C. Walker , Devashibhai Adroja , Dehong Yu , Bing Shen , Lunhua He , Kun Cao , Meng Wang","doi":"10.1016/j.scib.2024.07.030","DOIUrl":"10.1016/j.scib.2024.07.030","url":null,"abstract":"<div><div>After several decades of studies of high-temperature superconductivity, there is no compelling theory for the mechanism yet; however, the spin fluctuations have been widely believed to play a crucial role in forming the superconducting Cooper pairs. The recent discovery of high-temperature superconductivity near 80 K in the bilayer nickelate La<sub>3</sub>Ni<sub>2</sub>O<sub>7</sub> under pressure provides a new platform to elucidate the origins of high-temperature superconductivity. We perform elastic and inelastic neutron scattering studies on a polycrystalline sample of La<sub>3</sub>Ni<sub>2</sub>O<sub>7−<em>δ</em></sub> at ambient pressure. No magnetic order can be identified down to 10 K. The absence of long-range magnetic order in neutron diffraction measurements may be ascribed to the smallness of the magnetic moment. However, we observe a weak flat spin-fluctuation signal in the inelastic scattering spectra at <span><math><mrow><mo>∼</mo></mrow></math></span> 45 meV. The observed spin excitations could be interpreted as a result of strong interlayer and weak intralayer magnetic couplings for stripe-type antiferromagnetic orders. Our results provide crucial information on the spin dynamics and are thus important for understanding the superconductivity in La<sub>3</sub>Ni<sub>2</sub>O<sub>7</sub>.</div></div>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"69 20","pages":"Pages 3221-3227"},"PeriodicalIF":18.8,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141843357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0