{"title":"Cyanido-bridged mixed-valence system: How to control the electron transfer process","authors":"Yu-Ying Yang, Xiao-Lin Liu, Xin-Tao Wu, Tian-Lu Sheng","doi":"10.1016/j.fmre.2024.01.025","DOIUrl":"10.1016/j.fmre.2024.01.025","url":null,"abstract":"<div><div>Cyanido-bridged mixed-valence compounds represent a distinctive and significant mixed-valence system. Exploring this system provides valuable insights into comprehending the intricacies of electron transfer processes in nature, thereby contributing to the development of applications. In this review, we delineate four key factors that influence the electron transfer dynamics within cyanido-bridged mixed-valence systems. Additionally, we offer a perspective on modulating the electron transfer process, accompanied by an exploration of applications in molecular wires and quantum dot cellular automata. We hope this review will serve as a valuable resource for guiding the design and synthesis of functional cyanido-bridged compounds.</div></div>","PeriodicalId":34602,"journal":{"name":"Fundamental Research","volume":"6 4","pages":"Pages 2202-2211"},"PeriodicalIF":6.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140269583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
{"title":"Seizure type classification algorithm based on multi-dimensional brain network feature selection","authors":"Duanpo Wu, Yixiao Mao, Yuhan Gao, Pierre-Paul Vidal, Danping Wang, Chenggang Yan","doi":"10.1016/j.fmre.2025.01.015","DOIUrl":"10.1016/j.fmre.2025.01.015","url":null,"abstract":"<div><div>Different seizure types exhibit varying levels of redundant brain network features. In order to select features that contribute significantly to model performance, an algorithm for seizure type classification based on multi-dimensional brain network feature selection (MBNFS) is proposed. Firstly, wavelet packet transform (WPT) is applied to all channels of the electroencephalogram (EEG) signals and all the sub-band signals obtained are used as network nodes. Secondly, mutual information (MI) between different nodes is calculated to get MI matrix as edge weights. Next, we design a new brain network set construction method based on the leave-one-out method and MI matrix to formulate a set of brain networks. After that, network features are extracted through nodes and edges and further evaluated for their contributions using random forest (RF). Then, based on the leave-one-out method and a matrix where the main diagonal is 0 and the remaining elements are 1, the contributions of channels, sub-bands and network features are deduced. Leveraging these three-dimensional contributions, a multi-dimensional iterative selection is conducted, focusing on selecting the dimensional individuals whose contributions exceed the manually set threshold. Finally, the RF model is trained with the refined feature set to classify seizure types, yielding test set detection accuracy, specificity, sensitivity, F1 score and kappa values of 99.86 %, 99.86 %, 99.86 %, 0.9986 and 0.9984, respectively.</div></div>","PeriodicalId":34602,"journal":{"name":"Fundamental Research","volume":"6 4","pages":"Pages 2559-2570"},"PeriodicalIF":6.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148640518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Fundamental ResearchPub Date : 2026-07-01Epub Date: 2025-03-13DOI: 10.1016/j.fmre.2025.02.020
Huai-Ming Yu, Jing Liu
{"title":"Quanestimation.jl: An open-source Julia framework for quantum parameter estimation","authors":"Huai-Ming Yu, Jing Liu","doi":"10.1016/j.fmre.2025.02.020","DOIUrl":"10.1016/j.fmre.2025.02.020","url":null,"abstract":"<div><div>As the main theoretical support of quantum metrology, quantum parameter estimation must follow the steps of quantum metrology towards the applied science and industry. Hence, optimal scheme design will soon be a crucial and core task for quantum parameter estimation. To efficiently accomplish this task, software packages aimed at computer-aided design are in high demand. In response to this need, we hereby introduce QuanEstimation.jl, an open-source Julia framework for scheme evaluation and design in quantum parameter estimation. It can be used either as an independent package or as the computational core of the recently developed hybrid-language (Python-Julia) package QuanEstimation [Phys. Rev. Res. 4 (4) (2022) 043057]. Utilizing this framework, the scheme evaluation and design in quantum parameter estimation can be readily performed, especially when quantum noises exist.</div></div>","PeriodicalId":34602,"journal":{"name":"Fundamental Research","volume":"6 4","pages":"Pages 2167-2174"},"PeriodicalIF":6.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148640635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Fundamental ResearchPub Date : 2026-07-01Epub Date: 2026-04-16DOI: 10.1016/j.fmre.2026.04.012
Zhanpeng Liu, Qiu Tan, Xiaoyong Bai
{"title":"High-resolution mapping of soil total phosphorus in China: Revealing spatiotemporal patterns and driving mechanisms","authors":"Zhanpeng Liu, Qiu Tan, Xiaoyong Bai","doi":"10.1016/j.fmre.2026.04.012","DOIUrl":"10.1016/j.fmre.2026.04.012","url":null,"abstract":"<div><div>Soil total phosphorus (STP) is a key component of the terrestrial phosphorus cycle, and its spatial distribution pattern profoundly influences ecological security and the stability of food production. This study integrates 20,372 nationwide plot monitoring records and, based on the Random Forest algorithm, constructs a 1 km resolution layered spatiotemporal map of STP across China for the period 2000–2020. The results show that China’s STP exhibits an overall “central high, northern-southern low” spatial pattern, with South China identified as a contiguous low‑phosphorus region (<0.4 g/kg). Vertically, STP decreases by approximately 25.8% with increasing soil depth. The study further reveals regional differentiation characteristics of STP variation: the mid‑temperate zone serves as the core area of phosphorus accumulation, while the middle‑lower Yangtze River region and the Sichuan Basin are identified as hotspots of phosphorus loss. Solar radiation (SR) is the main positive driver of phosphorus enrichment in plateau regions (affecting 29.1% of the national area, ca. 2.65 × 10<sup>6</sup> km²), whereas wind speed is the primary negative driver of phosphorus loss in arid regions (affecting 32.7% of the national area, ca. 2.98 × 10<sup>6</sup> km²). Temperature (Tmp) exhibits a bimodal regulatory pattern. This study systematically elucidates the integrated impacts of natural and anthropogenic factors on the spatiotemporal pattern of STP, proposes a multi‑scale analytical framework for soil phosphorus cycling, and provides both data support and scientific basis for the zonal management of phosphorus resources and sustainable agricultural development.</div></div>","PeriodicalId":34602,"journal":{"name":"Fundamental Research","volume":"6 4","pages":"Pages 2427-2437"},"PeriodicalIF":6.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148640568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Fundamental ResearchPub Date : 2026-07-01Epub Date: 2025-04-09DOI: 10.1016/j.fmre.2025.04.001
Yifan Luo, Honglu Yu, Keqiang Ye
{"title":"Distinct factors drive the progression of tau pathology in Alzheimer’s disease","authors":"Yifan Luo, Honglu Yu, Keqiang Ye","doi":"10.1016/j.fmre.2025.04.001","DOIUrl":"10.1016/j.fmre.2025.04.001","url":null,"abstract":"<div><div>Alzheimer’s disease (AD) is the most common cause of dementia worldwide. The primary histopathological markers for AD diagnosis are extracellular amyloid plaques and intracellular neurofibrillary tangles (NFTs), featured by aggregation of hyperphosphorylated and truncated tau proteins. Emerging evidence shows that tau pathology, rather than amyloid-β deposition, exhibits a stronger correlation with brain atrophy and cognitive decline in AD, emphasizing its pivotal role in disease progression. However, the molecular mechanisms of tau propagation in the brain are incompletely understood, and there is no effective therapy to halt tau pathology propagation in AD. In this review, we summarize current knowledge on the multifactorial triggers of tau pathology in AD in the aspects of (1) physiological or pathological driving factors, (2) different types of brain cells and (3) key regulatory proteins that steer tau aggregation and spread. Based on these findings, we also critically evaluate the current and potential therapeutic strategies against tau pathology in AD. Together, this review provides a comprehensive understanding of tau pathology regulation and highlights promising strategies for therapeutic intervention.</div></div>","PeriodicalId":34602,"journal":{"name":"Fundamental Research","volume":"6 4","pages":"Pages 2289-2298"},"PeriodicalIF":6.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148640570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Fundamental ResearchPub Date : 2026-07-01Epub Date: 2025-01-06DOI: 10.1016/j.fmre.2024.12.018
Ya-Feng Jiao, Jie Wang, Qian Zhang, Hui-zu Lin, Hui Jing
{"title":"Nonreciprocal quantum optics: New effects and applications in quantum sensing","authors":"Ya-Feng Jiao, Jie Wang, Qian Zhang, Hui-zu Lin, Hui Jing","doi":"10.1016/j.fmre.2024.12.018","DOIUrl":"10.1016/j.fmre.2024.12.018","url":null,"abstract":"<div><div>Recent advancements in quantum techniques have enabled the design and fabrication of nonreciprocal optical devices that operate in the deep quantum regime, where quantum statistical properties play a crucial role. Following this trend, recent studies have focused on exploring the relationship between quantum correlations and nonreciprocity. Here, we sketch the latest theoretical and experimental advances in generating and manipulating nonreciprocal quantum correlations and the advantages of quantum nonreciprocity for applications in one-way quantum sensing. From a broader perspective, leveraging nonreciprocal quantum correlations by breaking reciprocal symmetry can provide a promising pathway for enhancing the performance of noise-tolerant quantum sensors.</div></div>","PeriodicalId":34602,"journal":{"name":"Fundamental Research","volume":"6 4","pages":"Pages 2149-2152"},"PeriodicalIF":6.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148640632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Fundamental ResearchPub Date : 2026-07-01Epub Date: 2025-06-30DOI: 10.1016/j.fmre.2025.06.011
Shujun Xiao, Jiaqi Wu, Kai Tan, Sujiang Zhang, Yuting Dai, Jiarui Wu, Jiale Wu, Xinle Han, Derun Zheng, Xin Wang, Huaxin Song, Min Lu
{"title":"p53 mutation-associated prognosis across cancer types underlines hematological malignancy as an applicable cancer type to p53-rescue therapy","authors":"Shujun Xiao, Jiaqi Wu, Kai Tan, Sujiang Zhang, Yuting Dai, Jiarui Wu, Jiale Wu, Xinle Han, Derun Zheng, Xin Wang, Huaxin Song, Min Lu","doi":"10.1016/j.fmre.2025.06.011","DOIUrl":"10.1016/j.fmre.2025.06.011","url":null,"abstract":"<div><div>Tumor suppressor p53 is mutated and thereafter loses tumor-suppressive function in about 50% of cancer cases, across nearly all cancer types. Efforts to rescue mutant p53 pharmacologically have been ongoing for decades, leading to reports of approximately 71 mutant p53-rescue small-molecule compounds and > 20 clinical trials. However, no statistically significant patient benefit has been achieved, possibly due to the lack of rationalization of cancer type selection in the trials. Here, we analyzed p53 mutation-associated prognosis of overall survival, together with tumor mutation burden and concurrent cancer driver mutation with p53 mutation, across 33 cancer types in The Cancer Genome Atlas (TCGA), through which hematology malignancy was predicted as a cancer type potentially responding to p53-rescue therapy. In validation experiments, p53-null hematological malignant cell lines exhibited high sensitivity to the introduction of exogenous wild-type p53 as compared to solid-tumor cell lines. Furthermore, hematological malignant cell lines harboring structural mutant p53 are also more sensitive to the established mutant p53 rescue compound arsenic trioxide (ATO). In p53-mutant hematological malignant cells, the majority of the beneficial p53-regulating genes are upregulated while the majority of the deleterious p53-regulating genes are downregulated by ATO treatment, predicting a beneficial outcome of ATO in treating hematological malignancies in the clinic. Together, we propose a guideline for the rational selection of cancer types in the rapidly expanding p53-rescue clinical trials.</div></div>","PeriodicalId":34602,"journal":{"name":"Fundamental Research","volume":"6 4","pages":"Pages 2711-2724"},"PeriodicalIF":6.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148640787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Fundamental ResearchPub Date : 2026-07-01Epub Date: 2025-01-21DOI: 10.1016/j.fmre.2025.01.005
Liangcai Xie, Tianyi He, Liang Jin
{"title":"Synchronized in-gap edge states and robust copropagation in topological insulators without magnetic flux","authors":"Liangcai Xie, Tianyi He, Liang Jin","doi":"10.1016/j.fmre.2025.01.005","DOIUrl":"10.1016/j.fmre.2025.01.005","url":null,"abstract":"<div><div>Copropagation of antichiral edge states in the metallic phase requires the bulk states as counterpropagating modes. Without the band gap protection, the copropagation along the boundaries is easily scattered into the bulk and the counterpropagation in the bulk is not robust against disorder and defects. Here, we propose a novel time-reversal symmetric topological insulator holding the synchronized in-gap edge states. To prevent the participation of bulk states, we introduce the time-reversal symmetry to detach the edge states from the bulk band, then the robust copropagation is realized through widening the band gap across a metal-insulator transition with anisotropic next-nearest-neighbor couplings. The time-reversal symmetry ensures the in-gap edge states with opposite momenta as the counterpropagating modes. The inversion symmetry protects the quantized polarization as a topological invariant. The synchronized in-gap edge states not only enrich the family of topological edge states, but also provide additional flexibility in the design of reconfigurable topological optical devices. Our findings open a new avenue for the tailored robust wave transport using the in-gap edge states for future acousto-optic topological metamaterials.</div></div>","PeriodicalId":34602,"journal":{"name":"Fundamental Research","volume":"6 4","pages":"Pages 2153-2159"},"PeriodicalIF":6.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148640630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Fundamental ResearchPub Date : 2026-07-01Epub Date: 2024-04-10DOI: 10.1016/j.fmre.2024.03.024
Qiong-Qiong Li, Shu-Min Li, Yao-Hui Wang, Jian-Feng Li
{"title":"New horizon of in-situ Raman spectroelectrochemistry on single crystal surfaces","authors":"Qiong-Qiong Li, Shu-Min Li, Yao-Hui Wang, Jian-Feng Li","doi":"10.1016/j.fmre.2024.03.024","DOIUrl":"10.1016/j.fmre.2024.03.024","url":null,"abstract":"<div><div>Single crystal electrodes possess highly ordered and well-defined surface structures, making them ideal model systems for studying the mechanism of electrocatalytic reactions. The latest advancements in shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) have made it possible to identify the intermediate products of reactions on single crystal electrodes. By isolating the nanoparticles with a protective shell, it is possible to enhance the Raman signals at the surface of the single crystal electrode without modifying the surface structure or affecting the electrochemical response. Therefore, this perspective attempts at providing a new horizon of the recent advancements in electrochemical studies using SHINERS on single crystal electrodes. The focus of the discussion is on the integration of electrochemical methods with SHINERS for the effective monitoring of reaction intermediates and the prospects of single crystal electrochemical Raman spectroscopy are also presented.</div></div>","PeriodicalId":34602,"journal":{"name":"Fundamental Research","volume":"6 4","pages":"Pages 2184-2188"},"PeriodicalIF":6.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140791673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}