Science Bulletin最新文献

{"title":"Profile of climate extremes vulnerability in China during 1991-2022.","authors":"Fangyuan Cheng, Meiyu Chang, Zhiyan Zuo, Wei Mei","doi":"10.1016/j.scib.2025.06.009","DOIUrl":"https://doi.org/10.1016/j.scib.2025.06.009","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144493308","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}

{"title":"Evidence for the existence of a flavor-sextet charmed meson?","authors":"Feng-Kun Guo, Bing-Song Zou","doi":"10.1016/j.scib.2025.06.004","DOIUrl":"10.1016/j.scib.2025.06.004","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144332148","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}

{"title":"GABPα₂β₂ tetramer deficiency impairs natural killer cell maturation, compromising cytotoxicity and resistance against melanoma.","authors":"Weiwei Jia, Wanting Zhong, Shanshan Hao, Zhao Wang, Shuaishuai Niu, Yingdi Xu, Yajiao Zhang, Mingxia Feng, Haitao Jiang, Jiarui Zhang, Danli Song, Peiyao Yan, Jiahui Zhang, Baokai Wang, Rui Xie, Youmin Kang, Jingyu Xu, Qinghe Li, Shuyang Yu","doi":"10.1016/j.scib.2025.06.007","DOIUrl":"https://doi.org/10.1016/j.scib.2025.06.007","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144493306","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}

{"title":"Broadening the Na⁺ diffusion degree of freedom to unlock a rapid sodium storage potential in fluorophosphate cathode.","authors":"Hong Yu, Jinjin Wang, Hongbo Jing, Chao Wu, Erhai Hu, Shibo Xi, Xiaomei Wang, Zhiyu Fang, Xing-Long Wu, Qinghua Liang, Weihong Qi, Qingyu Yan, Hongqiang Wang, Cheng-Feng Du","doi":"10.1016/j.scib.2025.06.005","DOIUrl":"https://doi.org/10.1016/j.scib.2025.06.005","url":null,"abstract":"<p><p>High safety and high energy-density sodium-ion batteries require the promising polyanionic insertion-type cathode possessing fast dis-/charging capability, yet persistent challenges remain in the kinetic optimization to accelerate their intrinsically low Na⁺ diffusivity. Exampled by the representative Na₃V₂(PO₄)O₂F (NVPOF) with considerable theoretical energy density, structural distortion results in a one-dimensional sluggish Na⁺ diffusion out of the two-dimensional Na⁺ pathway provided structurally. Previous endeavors with Na site or transition-metal site regulation successfully optimize the Na⁺ diffusion energy barrier of the available one-dimensional path. However, these substituted elements with non-equivalent valances or sizes further elevate the energy barrier of the other unavailable Na⁺ diffusion path. Herein, by defining the independently accessible Na⁺ diffusion pathways in the crystallographic structure as Na⁺ diffusion degree of freedom (df_[Na+]), we demonstrate broadening df_[Na+] to two in NVPOF by a mild perturb at the dangling site can fundamentally revise the Na⁺ diffusion behaviour. As demonstrated by in-situ synchrotron, various spectroscopic techniques, and density functional theory (DFT) modeling, this mild perturb equalizes the Na⁺ diffusion energy barriers along a and b directions and enables two-dimensional Na⁺ transportation. The as-prepared NVPOF depicts an altered solid-solution phase transition, higher disorder in the framework and dramatically enhanced Na⁺ diffusivity, which leads to unprecedentedly high sodium storage properties in half cell (68.6 mAh g^-1 at 100 C; 103.3 mAh g^-1 after 1300 cycles at 20 C; 1 C = 130 mA g^-1) and full cell (313.8 Wh kg^-1@4063.5 W kg^-1; 113.9 Wh kg^-1@16,397.2 W kg^-1). This study enlightens the valuable role of broadening df_[Na+] in fundamentally maximizing the polyanionic insertion-type performance.</p>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144525846","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}

{"title":"Digging deeper towards accurate mapping of deep soil organic carbon in grasslands.","authors":"Guocheng Wang, Zhongkui Luo, Changqing Song, Haojun Zheng, Mingming Wang, Shuai Zhang, Huirong Li, Haigang Li, Liujun Xiao","doi":"10.1016/j.scib.2025.06.006","DOIUrl":"https://doi.org/10.1016/j.scib.2025.06.006","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144525847","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}

{"title":"Batch production of modulation-doped MoS₂ field-effect transistors for integrated electronics.","authors":"Yutang Hou, Lei Yin, Xianzhuo Zhao, Xiaolin Zhang, Yu Wang, Xinjie Hou, Yao Wen, Hao Wang, Sheng Chang, Ruiqing Cheng, Jun He","doi":"10.1016/j.scib.2025.06.002","DOIUrl":"https://doi.org/10.1016/j.scib.2025.06.002","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144493304","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}

{"title":"Intercellular crosstalk within human preimplantation lineages regulates trophectoderm specification.","authors":"Zhifen Tu, Yan Bi, Tan Lin, Tao Wu, Hong Wang, Jingyu Li, Guoning Huang, Shaorong Gao, Yixuan Wang","doi":"10.1016/j.scib.2025.06.003","DOIUrl":"https://doi.org/10.1016/j.scib.2025.06.003","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144493307","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}

{"title":"The day-one experiment at SLEGS: systematic measurement of the (γ, 1n) cross sections on ¹⁹⁷Au and ¹⁵⁹Tb for resolving existing data discrepancies.","authors":"Zirui Hao, Gongtao Fan, Hongwei Wang, Longxiang Liu, Hanghua Xu, Yue Zhang, Yuxuan Yang, Sheng Jin, Kaijie Chen, Zhicai Li, Pu Jiao, Qiankun Sun, Mengdie Zhou, Shan Ye, Zhenwei Wang, Wenqing Shen, Yugang Ma","doi":"10.1016/j.scib.2025.05.037","DOIUrl":"https://doi.org/10.1016/j.scib.2025.05.037","url":null,"abstract":"<p><p>The Shanghai Laser Electron Gamma Source (SLEGS), built in the Shanghai Synchrotron Radiation Facility, is the first versatile laser Compton slant-scattering beamline in the world. The measurements of ¹⁹⁷Au(γ, 1n) and ¹⁵⁹Tb(γ, 1n) reaction cross sections were chosen as the day-one experiment at SLEGS. The SLEGS data are compared with data from the Livermore and Saclay positron annihilation in-flight facilities and with data from the NewSUBARU laser Compton backscattering facility. Our data evidence discrepancies with the results from Livermore and Saclay, while demonstrating consistency with the data from NewSUBARU. This is also consistent with new theoretical predictions. The new measurement lays the foundation for resolving the long-standing discrepancies between the Livermore and Saclay photoneutron cross section data for 19 nuclei in the future. Gamma-ray beams produced at SLEGS await a variety of experiments for nuclear physics, astrophysics and nuclear data as well as for industrial applications.</p>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144537631","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}

{"title":"Selective electroreduction of carbon dioxide to ethylene over stable iodide-induced asymmetric copper sites within a metal-organic polyhedron.","authors":"Yaguang Peng, Yinlin Chen, Zi Wang, Yaoyu Yin, Jiangnan Li, Huanyan Liu, Jiapeng Jiao, Wenling Zhao, Ran Duan, Pei Zhang, Jiahao Yang, Hengan Wang, Xueqing Xing, Zhimin Liu, Sihai Yang, Xinchen Kang, Buxing Han","doi":"10.1016/j.scib.2025.06.001","DOIUrl":"https://doi.org/10.1016/j.scib.2025.06.001","url":null,"abstract":"<p><p>Porous Cu-based metal-organic compounds have attracted increasing attention for CO₂ electroreduction due to their well-defined porous structures and abundant metal sites. However, the classical {Cu₂}-paddlewheel moieties within these materials often show poor electrochemical stability, leading to structural degradation during CO₂ electroreduction. Here, we report a strategy to generate stable {Cu(II)·Cu(I)} active sites by iodide species in a Cu-based metal-organic polyhedron, Cu-TCBB (TCBB=1,3,5-tris(4'-carboxybiphenyl-2-yl)benzene), to not only promote C₂H₄ production but also clarify the real active sites of {Cu₂}-paddlewheel-based materials during CO₂ electroreduction. Cu-TCBB exhibits a high Faradaic efficiency (FE) of 73.1% towards C₂H₄ at -1.1 V vs. reversible hydrogen electrode (RHE) in 0.1 mol L^-1 CsI aqueous solution, outperforming all porous metal-organic compounds to date. The presence of iodide-induced {Cu(II)·Cu(I)} sites was verified through in situ synchrotron X-ray diffraction and absorption spectroscopy, electron paramagnetic resonance spectroscopy, coupled with modelling, shedding light on the mechanism of CO₂ electroreduction over unique {Cu(II)·Cu(I)} sites.</p>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144493309","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}

{"title":"Reward-modulated spike-timing-dependent plasticity in van der Waals ferroelectric memtransistor for robotic recognition and tracking.","authors":"Yi Cao, Jinhao Liang, Tao Liu, Weihui Sang, Yang Gan, Honghong Li, Yue Wang, Zheng Ren, Yuan Yu, Zhou Xin, Yukang Chen, Xumeng Zhang, Du Xiang, Qi Liu","doi":"10.1016/j.scib.2025.05.044","DOIUrl":"https://doi.org/10.1016/j.scib.2025.05.044","url":null,"abstract":"<p><p>Reward-modulated spike-timing-dependent plasticity (R-STDP) is a promising biomimetic learning rule in neuromorphic intelligent systems for implementing tasks in variable environments. Nevertheless, realizing R-STDP in a single synaptic device for building compact and energy-efficient neuromorphic systems remains challenging. Here, we report a two-dimensional ferroelectric memtransistor to emulate the R-STDP learning rule by effectively reconfiguring the STDP and anti-STDP. The thermionic emission and tunneling behavior of charges at the ferroelectric interface can be regulated via vertical electric field in a multi-terminal manner, allowing for controllable polarization reversal of synaptic plasticity and transition between STDP and anti-STDP. This enables faithful realization of the R-STDP feature in a single device with energy consumption of ∼1.3 nJ (the lowest known to date), approximately 10⁶ times lower than that of its complementary metal-oxide-semiconductor (CMOS) counterpart. By leveraging the synaptic characteristics in the hardware device, we construct spiking neural networks (SNNs) trained with R-STDP to perform robotic recognition and tracking tasks. The SNN achieves 95.1% accuracy on the MNIST dataset using only 8000 parameters, and faster convergence speed requiring only one data batch with 100% inference in the few-shot learning task. Moreover, a robotic arm motion control system configured with R-STDP exhibits 85.5% success rate in tracking both the static and moving targets, illustrating its outstanding adaptability to the dynamic environments. This work provides a potential hardware building block to support compact neuromorphic systems for the application of interactive artificial intelligence agents.</p>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144482736","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}