Science BulletinPub Date : 2025-06-16DOI: 10.1016/j.scib.2025.06.011
Ashish Dahal, Ravindra Uppaluri, Jonathan D Schoenfeld
{"title":"Proliferative T-regulatory cells as a biomarker for immune checkpoint inhibitor efficacy in nasopharyngeal carcinoma: a new frontier.","authors":"Ashish Dahal, Ravindra Uppaluri, Jonathan D Schoenfeld","doi":"10.1016/j.scib.2025.06.011","DOIUrl":"https://doi.org/10.1016/j.scib.2025.06.011","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144525848","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}
Science BulletinPub Date : 2025-06-11DOI: 10.1016/j.scib.2025.05.045
Xiao-Gang He, Chia-Wei Liu
{"title":"Large CP violation in charmed baryon decays.","authors":"Xiao-Gang He, Chia-Wei Liu","doi":"10.1016/j.scib.2025.05.045","DOIUrl":"https://doi.org/10.1016/j.scib.2025.05.045","url":null,"abstract":"<p><p>This work presents the first detailed numerical predictions of CP violation in antitriplet charmed baryon decays. Adopting the flavor SU(3)<sub>F</sub> symmetry and the final state re-scattering framework, we relate the CKM-suppressed amplitudes to the leading ones, which are proportional to λ<sub>b</sub> and λ<sub>d</sub>, respectively, with λ<sub>q</sub>=V<sub>uq</sub>V<sub>cq</sub><sup>∗</sup>. Larger-than-expected CP violations are found, reaching the order of 10<sup>-3</sup>, similar in magnitude to those in D<sup>0</sup>→π<sup>+</sup>π<sup>-</sup>,K<sup>+</sup>K<sup>-</sup>. This opens a promising avenue for observing CP violation in charmed baryon decays and testing the Standard Model.</p>","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":"144482733","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}
Science BulletinPub Date : 2025-06-11DOI: 10.1016/j.scib.2025.06.008
Heng Shi, Fengyi Zhong, Shiyong Mou, Chenyu Du, Ye He, Ying Zhou, Jianping Sheng, Fan Dong
{"title":"Strain-dependent polaron regulation suppresses carrier decay in perovskite nanowires to enhance CO<sub>2</sub> photoreduction.","authors":"Heng Shi, Fengyi Zhong, Shiyong Mou, Chenyu Du, Ye He, Ying Zhou, Jianping Sheng, Fan Dong","doi":"10.1016/j.scib.2025.06.008","DOIUrl":"https://doi.org/10.1016/j.scib.2025.06.008","url":null,"abstract":"<p><p>Metal-halide perovskite nanocrystals, as efficient photocatalysts with unique properties, have attracted significant interest for various applications in energy and environmental catalysis applications. However, the full potential of metal-halide perovskite nanocrystals remains untapped. In this study, we synthesised a series of CsPbBr<sub>3</sub> nanowires with tailorable tensile strain (0%-1%) through a strain engineering approach to enhance photocatalytic CO<sub>2</sub> reduction performance. Nanowires with moderate strain (0.47%) attained superior catalytic performance with an electron consumption rate exceeding 300 μmol g<sup>-1</sup> h<sup>-1</sup> and 100% selectivity for CO production, surpassing that of the unstrained sample by five times. Ultrafast spectroscopy, in-situ diffuse reflectance infrared Fourier transform spectroscopy, and density functional theory calculations revealed that the enhanced performance of the strained sample arises from strain-modulated polaron formation, which retards the carrier decay process (with the longest time component increasing from 672 ps to 2.85 ns), as well as strain-tailored electronic structures that lower the thermodynamic energy barrier for *COOH formation. Our study highlights the significance of strain-modulated polaron behaviour in metal-halide perovskite photocatalysts.</p>","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":"144525849","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}
Science BulletinPub Date : 2025-06-11DOI: 10.1016/j.scib.2025.06.009
Fangyuan Cheng, Meiyu Chang, Zhiyan Zuo, Wei Mei
{"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}
Science BulletinPub Date : 2025-06-10DOI: 10.1016/j.scib.2025.06.004
Feng-Kun Guo, Bing-Song Zou
{"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":"Broadening the Na<sup>+</sup> 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<sup>+</sup> diffusivity. Exampled by the representative Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)O<sub>2</sub>F (NVPOF) with considerable theoretical energy density, structural distortion results in a one-dimensional sluggish Na<sup>+</sup> diffusion out of the two-dimensional Na<sup>+</sup> pathway provided structurally. Previous endeavors with Na site or transition-metal site regulation successfully optimize the Na<sup>+</sup> 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<sup>+</sup> diffusion path. Herein, by defining the independently accessible Na<sup>+</sup> diffusion pathways in the crystallographic structure as Na<sup>+</sup> diffusion degree of freedom (df<sub>[Na+]</sub>), we demonstrate broadening df<sub>[Na+]</sub> to two in NVPOF by a mild perturb at the dangling site can fundamentally revise the Na<sup>+</sup> diffusion behaviour. As demonstrated by in-situ synchrotron, various spectroscopic techniques, and density functional theory (DFT) modeling, this mild perturb equalizes the Na<sup>+</sup> diffusion energy barriers along a and b directions and enables two-dimensional Na<sup>+</sup> transportation. The as-prepared NVPOF depicts an altered solid-solution phase transition, higher disorder in the framework and dramatically enhanced Na<sup>+</sup> diffusivity, which leads to unprecedentedly high sodium storage properties in half cell (68.6 mAh g<sup>-1</sup> at 100 C; 103.3 mAh g<sup>-1</sup> after 1300 cycles at 20 C; 1 C = 130 mA g<sup>-1</sup>) and full cell (313.8 Wh kg<sup>-1</sup>@4063.5 W kg<sup>-1</sup>; 113.9 Wh kg<sup>-1</sup>@16,397.2 W kg<sup>-1</sup>). This study enlightens the valuable role of broadening df<sub>[Na+]</sub> 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}