{"title":"Femtoscopy can tell whether Z<sub>c</sub>(3900) and Z<sub>cs</sub>(3985) are resonances, virtual states, or bound states.","authors":"Zhi-Wei Liu, Jun-Xu Lu, Ming-Zhu Liu, Li-Sheng Geng","doi":"10.1016/j.scib.2025.09.022","DOIUrl":"https://doi.org/10.1016/j.scib.2025.09.022","url":null,"abstract":"<p><p>There have been extended and heated discussions on the nature of the two exotic states, Z<sub>c</sub>(3900) and Z<sub>cs</sub>(3985), particularly whether they are near-threshold resonances, virtual states, or bound states. In this work, we demonstrate for the first time that the femtoscopic technique can be employed to distinguish between these three scenarios. More concretely, based on the Koonin-Pratt formula with a Gaussian source, we show that the low-momentum D<sup>0</sup>D<sup>*-</sup>/D<sup>0</sup>D<sub>s</sub><sup>*-</sup> correlation functions significantly differ in the three scenarios. The high-momentum results exhibit distinct characteristics in the resonant and virtual state scenarios, especially in small collision systems of 1 fm, as produced in pp collisions at the LHC. We hope that these discoveries will stimulate further experimental studies and help clarify the nature of the many exotic states that have been discovered.</p>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":21.1,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243479","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 : 2025-09-22DOI: 10.1016/j.scib.2025.09.032
Ruihao Lu, Bowen Wang, Lincai Li, Zhiming Bao, Bin Li, Qing Du, Kui Jiao
{"title":"Advances in direct seawater electrolysis for green hydrogen production: emerging technologies and future perspectives.","authors":"Ruihao Lu, Bowen Wang, Lincai Li, Zhiming Bao, Bin Li, Qing Du, Kui Jiao","doi":"10.1016/j.scib.2025.09.032","DOIUrl":"https://doi.org/10.1016/j.scib.2025.09.032","url":null,"abstract":"<p><p>Given the potential exacerbation of global freshwater scarcity due to current hydrogen production via water electrolysis using freshwater, the abundance of seawater offers a promising avenue for sustainable green energy production and storage powered by renewable energy through direct seawater electrolysis (DSE). However, the complex composition of seawater presents higher demands for the design of catalysts and electrolyzers. Although a large number of works have focused on the catalysts and electrolyzers of DSE in recent years, very few reviews offer a holistic perspective that integrates both electrolyzers and catalysts. In this review, we first quantify the freshwater resource and cost pressures associated with green hydrogen production from freshwater electrolysis and demonstrate the technical and economic feasibility of DSE. After discussing the principles and challenges of DSE, we continue with a comprehensive review of the latest research trends and advances in catalysts and electrolyzers, highlighting the existing issues and technological bottlenecks. We found that most of the catalysts developed for DSE so far struggle to balance the required activity, selectivity, and stability for efficient operation. Existing electrolyzers for DSE face an urgent need to address the impact of impurity ions on the membrane and electrodes. Finally, based on current progress, we provide insights and perspectives on the future development and application of DSE hydrogen production technology. This review explores the value of DSE using renewable energy and provides a comprehensive review of seawater electrolysis for hydrogen production from the perspectives of catalysts and electrolyzers. It fills the gap in the current in-depth and systematic discussion of catalysts and electrolyzers in DSE technology, offering research directions for scholars and promoting future development in this field.</p>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":21.1,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145273358","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 : 2025-09-19DOI: 10.1016/j.scib.2025.09.023
Yaqi Wang, Junhong Bai
{"title":"Urgent action required to protect and restore global peatlands.","authors":"Yaqi Wang, Junhong Bai","doi":"10.1016/j.scib.2025.09.023","DOIUrl":"https://doi.org/10.1016/j.scib.2025.09.023","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":21.1,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145273306","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 : 2025-09-19DOI: 10.1016/j.scib.2025.09.030
Junwen Lei, Xiaoyi Wang, Xingyin Liu
{"title":"Microbiota-derived metabolites in the epigenetic regulation of the host.","authors":"Junwen Lei, Xiaoyi Wang, Xingyin Liu","doi":"10.1016/j.scib.2025.09.030","DOIUrl":"https://doi.org/10.1016/j.scib.2025.09.030","url":null,"abstract":"<p><p>The gut microbiota plays a crucial role in maintaining host health and modulating disease progression. Microbiota-derived metabolites (MDMs) form a complex and diverse repertoire of molecules that interact uniquely with the host and regulate epigenetics. In this review, we provide a comprehensive overview by examining the current evidence on how MDMs reshape host epigenetic landscape, and we highlight the innovative concept of the \"MDMs-epigenetic (MDME) axis\" as a potential framework for exploring and understanding microbiota-host interactions. Next, we underscore the significance of the MDME axis in driving mechanistic studies and elucidating the underlying biological processes and pathophysiological pathways involved in various diseases. Finally, we discuss the impact of MDMs on epigenetic landscapes, outline future directions, and highlight their pivotal role in both mechanistic investigation and the development of clinical therapies.</p>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":21.1,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145231078","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 : 2025-09-19DOI: 10.1016/j.scib.2025.09.029
Tianli Lan, Qinguo Ma, Yuanming Lai, Mingyi Zhang, Jon Harbor, Xiaoxiao Luo
{"title":"Quantifying the water contributions and carbon consequences of permafrost degradation on the Tibetan Plateau.","authors":"Tianli Lan, Qinguo Ma, Yuanming Lai, Mingyi Zhang, Jon Harbor, Xiaoxiao Luo","doi":"10.1016/j.scib.2025.09.029","DOIUrl":"https://doi.org/10.1016/j.scib.2025.09.029","url":null,"abstract":"<p><p>Permafrost degradation under climate warming plays a crucial role in hydrological and ecological processes, including the regional water cycle and terrestrial carbon balance. The Tibetan Plateau (TP), which contains the largest expanse of high-altitude permafrost globally, remains understudied in terms of how permafrost degradation affects surface water resources and regional carbon dynamics. Using permafrost simulation models and quantitative analysis, we assess the spatiotemporal impacts of permafrost degradation on surface water resources and carbon dynamics. In the inner endorheic regions of the TP, ground ice meltwater contributed 12.6 % of the total lake volume increase from 2000 to 2020, accelerating lake expansion and affecting nearby infrastructure and ecosystems. Cryospheric meltwater accounted for 4.6 % of total runoff in the source areas of the Yangtze, Yellow, Lancang, Yarlung Zangbo, and Nujiang Rivers in 2002-2018. This cryospheric meltwater contribution is projected to peak in the 2030s-2040s, followed by a decline, with potentially profound implications for downstream water availability. From 2000 to 2020, carbon sequestration of alpine grassland in permafrost regions is 1.05-1.29 Tg C a<sup>-</sup><sup>1</sup> in 2000-2020. This estimate is underestimated by approximately 35.5 % to 48.1 % without considering the impact of permafrost degradation. Top-down thawing of permafrost from 2002 to 2050 is projected to release 129.39 ± 21.02 Tg C a<sup>-</sup><sup>1</sup> of thawed soil organic carbon (SOC), with 20.82 ± 3.06 Tg C a<sup>-</sup><sup>1</sup> decomposed annually. Additionally, permafrost collapse and thermokarst lake are estimated to reduce ecosystem carbon sinks by 0.41 (0.29-0.52) Tg C a<sup>-</sup><sup>1</sup> in 2020.</p>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":21.1,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243528","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 : 2025-09-19DOI: 10.1016/j.scib.2025.09.025
Jie Huang, Shichang Kang, Jinling Liu, Wenjun Tang, Junming Guo, Qianggong Zhang, Lekhendra Tripathee, Yi Zhang, Feiyue Wang
{"title":"Glaciers in Western China as a significant global pool of cryospheric methylmercury.","authors":"Jie Huang, Shichang Kang, Jinling Liu, Wenjun Tang, Junming Guo, Qianggong Zhang, Lekhendra Tripathee, Yi Zhang, Feiyue Wang","doi":"10.1016/j.scib.2025.09.025","DOIUrl":"https://doi.org/10.1016/j.scib.2025.09.025","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":21.1,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145273364","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 : 2025-09-19DOI: 10.1016/j.scib.2025.09.028
Stephen Z D Cheng
{"title":"Interfacial co-crystallized magnetoelectric films for wearable sensing.","authors":"Stephen Z D Cheng","doi":"10.1016/j.scib.2025.09.028","DOIUrl":"https://doi.org/10.1016/j.scib.2025.09.028","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":21.1,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145228530","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}