Science Bulletin最新文献_第2页

New horizon in particle physics: first observation of CP violation in baryon decays. 粒子物理学的新视界：重子衰变中首次观察到CP违和。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2025-04-30 DOI: 10.1016/j.scib.2025.04.059

Fu-Sheng Yu, Cai-Dian Lü

引用次数: 0

Biosynthetic rule-guided theoretical chemical space mapping strategy for enhanced analysis of plant metabolomes: application to the geographical profiling of goji berry. 生物合成规则导向的植物代谢组学理论化学空间制图策略：在枸杞地理图谱中的应用。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2025-04-29 DOI: 10.1016/j.scib.2025.04.062

Wan-Yang Sun, Zhi-Hui Luo, Jie-Qi Cai, Qian Guo, Guo-Tao Chen, Guo-Dong Chen, Dan Hu, Hai-Guang Gong, Xue Li, Wei Bi, Ying Wang, Kwok-Fai So, Xin-Sheng Yao, Zheng-Qun Zhou, Rong-Rong He, Hao Gao

引用次数: 0

Gold-catalyzed construction of atomically rough surfaces towards high-efficiency ethanol electrooxidation. 金催化原子粗糙表面的构建及高效乙醇电氧化。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2025-04-29 DOI: 10.1016/j.scib.2025.04.051

Qing Zeng, Mengyuan Ma, Hui Liu, Lin Xu, Shaonan Tian, Dong Chen, Jing Wang, Jun Yang

{"title":"Gold-catalyzed construction of atomically rough surfaces towards high-efficiency ethanol electrooxidation.","authors":"Qing Zeng, Mengyuan Ma, Hui Liu, Lin Xu, Shaonan Tian, Dong Chen, Jing Wang, Jun Yang","doi":"10.1016/j.scib.2025.04.051","DOIUrl":"https://doi.org/10.1016/j.scib.2025.04.051","url":null,"abstract":"Atomic surface engineering for nanostructures significantly contributes to the enhancement of electrocatalysis for a given chemical reaction. However, exploring a facile method to elaborately regulate surfaces at atomic scale remains a grand challenge. Herein, we report the construction of atomically rough surfaces (ARSs) on Au-based binary alloys through a novel and controllable gold (Au)-catalyzed strategy, which involves the first synthesis of Au-based bimetallic nanoalloys, i.e., AuPd and AuAg, and subsequent reduction of another metal ions (Pt, Pd, or Ag) initiated by Au sites on the alloy particle surfaces. By combining ARSs with low-coordinated atoms with ligand effect induced by vicinal Au atoms, the as-prepared ARSs exhibit good activity and durability toward ethanol oxidation reaction (EOR) in an alkaline medium. In particular, the Pd-Pt ARSs on the AuPd alloy particle surface (denoted as AuPd-Pt) exhibit the highest electrocatalytic EOR performance in terms of both specific activity (14.9 mA cm-2) and mass activity (28.5 A mg-1), surpassing those of their AuPd alloy counterparts, commercial Pd/C catalyst, and most Pd-based electrocatalysts reported recently. In situ Fourier transform infrared (FTIR) spectroscopy reveals that the EOR process on the Pd-Pt ARSs strongly prefers incomplete oxidation, which is further authenticated by the density functional theory (DFT) calculations.","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143954958","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

The role of protein post-translational modifications and their crosstalk in determining pluripotent stem cells fate. 蛋白质翻译后修饰及其串扰在决定多能干细胞命运中的作用。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2025-04-29 DOI: 10.1016/j.scib.2025.04.064

Wenhui Fan, Taoxia E, Bin Lv, Hongyan Sun, Keshi Chen, Xingguo Liu, Linpeng Li

引用次数: 0

A high-capacity separated pulse tube cryocooler working at liquid helium temperatures. 在液氦温度下工作的高容量分离脉冲管制冷机。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2025-04-29 DOI: 10.1016/j.scib.2025.04.060

Ruize Li, Bo Wang, Qinyu Zhao, Haoren Wang, Zhihua Gan

引用次数: 0

Ribonuclease 4 is a pancreatic endogenous β cell proliferation factor. 核糖核酸酶4是胰腺内源性β细胞增殖因子。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2025-04-29 DOI: 10.1016/j.scib.2025.04.052

Muxiong Chen, Yaxin Liu, Jun Sun, Wenguang Wang, Zhi Huang, Yinzhen Xiong, Dan Zhou, Hong Yu, Jinghao Sheng, Rongpan Bai, Zhengping Xu

引用次数: 0

AI4Skeletons: bringing in a new era of the digital intelligent skeleton with artificial intelligence. ai4skeleton：以人工智能引领数字智能骨架新时代。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2025-04-29 DOI: 10.1016/j.scib.2025.04.057

Ling Wang, Wenhui Wang, Yandong Liu, Claus-C Glüer, Yi Zhang, Yajun Liu

引用次数: 0

Fractional quantum anomalous Hall effect: a universal leap to topological quantum computation. 分数量子反常霍尔效应：向拓扑量子计算的普遍飞跃。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2025-04-29 DOI: 10.1016/j.scib.2025.04.063

Tianyu Liu, Hai-Zhou Lu, Xincheng Xie

引用次数: 0

A single-fibre computer reshapes the future of wearable electronics. 单纤维计算机重塑了可穿戴电子产品的未来。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2025-04-29 DOI: 10.1016/j.scib.2025.04.054

Xiao Peng, Yingying Zhang

引用次数: 0

Decadal climate variability during the pre-industrial Common Era: characteristics and mechanisms. 工业化前共同时代的年代际气候变率：特征和机制。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2025-04-29 DOI: 10.1016/j.scib.2025.04.056

Liang Ning, Zhengyu Liu, Michael E Mann, Jian Liu, Mi Yan, Weiyi Sun, Kefan Chen, Yanmin Qin, Qin Wen

{"title":"Decadal climate variability during the pre-industrial Common Era: characteristics and mechanisms.","authors":"Liang Ning, Zhengyu Liu, Michael E Mann, Jian Liu, Mi Yan, Weiyi Sun, Kefan Chen, Yanmin Qin, Qin Wen","doi":"10.1016/j.scib.2025.04.056","DOIUrl":"https://doi.org/10.1016/j.scib.2025.04.056","url":null,"abstract":"In this article, we present a comprehensive review of decadal to multi-decadal climate variability during the Common Era (CE), focusing on their characteristics and mechanisms. We begin by summarizing recent advances in proxy reconstructions that reveal the paleo-evidence of decadal to multi-decadal climate variability during the CE. Decadal to multi-decadal variability has been observed in extensive sets of proxy records in the CE. Despite improvements in proxy records in the type, temporal resolution, and temporal coverage, there remains a lack of clear consistency in the preferred time scales and phases of the variability among different records. The agreements of decadal characteristics between proxy records and model simulations are higher during the periods with strong external forcings, but lower during periods of weak external forcing. We subsequently describe the recent modeling studies on the influences of external forcings and internal variability on decadal to multi-decadal climate variability with associated physical mechanisms, and some emerging research topics. Despite the improved understanding of climate variability and regional climate changes, especially over the eastern Asia summer monsoon region, several inconsistencies still exist, such as the amplitudes of responses to external forcings and relative contributions from external forcings and internal variability. The review ends with perspectives for future directions to reconcile discrepancies of decadal climate variability, such as applications of paleoclimate data assimilation and isotope-enabled transient climate modeling, and implications for projecting future decadal to multi-decadal climate changes and for improving the accuracy of decadal predictions.","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144075252","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