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Chinese Chemical Letters 2025年第2期36卷 250-255页

作者： Manman ou Yunjian Zhu Jiahao Liu Zhaoxuan Liu Jianjun Wang Jun Sun Chuanxiang Qin Lixing Dai College of Chemistry Chemical Engineering and Materials Science Soochow University

In this study, we proposed a novel and efficient way to strengthen polyvinyl alcohol(PVA) fiber using graphene quantum dots(GQDs). PVA molecular chains were grafted onto the surface of GQDs through Friedel-Crafts alkylation reaction to obtain functionalized GQDs(f-GQDs), and PVA/f-GQDs composite fiber was successfully prepared by wet spinning and post-treatment. The tensile strength and Young's modulus of the composite fiber reached up to 1229.24 MPa and 35.36 GPa which were approximately twice and 4 times those of the pure PVA fiber, respectively. Moreover, the composite fiber was demonstrated excellent resistance to solvents. In addition, the PVA/f-GQDs composite fiber showed intense and uniform cyan fluorescence, meanwhile, it could maintain stable solid-state fluorescence in acid and alkali solutions and particularly after long-term immersion in water(1 month). This study proposes a promising route for obtaining high-performance conventional fibers with some new functions.

关键词： Enhancement Fluorescence Graphene quantum dots Polyvinyl alcohol fiber

Exercise preconditioning alleviates ischemia-induced memory deficits by increasing circulating adiponectin

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Neural Regeneration Research 2025年第5期20卷 1445-1454页

作者： Meifeng Zheng Borui Zhang Sonata S Y Yau Kwok-Fai So Li Zhang Haining ou Department of Rehabilitation Medicine Guangzhou Medical UniversityGuangzhouGuangdong ProvinceChina Department of Rehabilitation Medicine The Fifth Clinical College of Guangzhou Medical UniversityGuangzhouGuangdong ProvinceChina Key Laboratory of CNS Regeneration(Ministry of Education) Guangdong-Hong Kong-Macao Institute of CNS RegenerationJinan UniversityGuangzhouGuangdong ProvinceChina Department of Rehabilitation Sciences The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina State Key Laboratory of Brain and Cognitive Science Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong Special Administrative RegionChina Center for Exercise and Brain Science School of PsychologyShanghai University of SportShanghaiChina Neuroscience and Neurorehabilitation Institute University of Health and Rehabilitation SciencesQingdaoShandong ProvinceChina

Cerebral ischemia is a major health risk that requires preventive approaches in addition to drug *** exercise enhances neurogenesis and synaptogenesis,and has been widely used for functional rehabilitation after *** this study,we determined whether exercise training before disease onset can alleviate the severity of cerebral *** also examined the role of exercise-induced circulating factors in these *** mice were subjected to 14 days of treadmill exercise training before surgery for middle cerebral artery *** found that this exercise pre-conditioning strategy effectively attenuated brain infarct area,inhibited gliogenesis,protected synaptic proteins,and improved novel object and spatial memory *** analysis showed that circulating adiponectin plays a critical role in these preventive effects of *** activation of adiponectin receptors by Adipo Ron mimicked the effects of exercise,while inhibiting receptor activation abolished the exercise *** summary,our results suggest a crucial role of circulating adiponectin in the effects of exercise pre-conditioning in protecting against cerebral ischemia and supporting the health benefits of exercise.

关键词： adiponectin cerebral ischemia exercise pre-conditioning hippocampus memory function middle cerebral artery occlusion prefrontal cortex synaptic proteins treadmill exercise

Effective stress dissipation by multi-dimensional architecture engineering for ultrafast and ultralong sodium storage

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Journal of Energy Chemistry 2025年第2期101卷 619-629页

作者： Man Zhang Jing Zhu Qianqian Li Fenghua Zheng Sijiang Hu Youguo Huang Hongqiang Wang Xing ou Qichang Pan Qingyu Li Guangxi Key Laboratory of Low Carbon Energy Materials School of Chemistry and Pharmaceutical Sciences Guangxi Normal University School of Metallurgy and Environment Central South University

Stress accumulation is a key factor leading to sodium storage performance deterioration for NiSe2-based ***,inhibiting the concentrated local stress during the sodiataion/desodiation process is crucial for acquiring stable NiSe2-based materials for sodium-ion batteries（SIBs）,Herein,a stress dissipation strategy driven by architecture engineering is proposed,which can achieve ultrafast and ultralong sodium storage *** from the conventional sphere-like or rod-like architecture,the three-dimensional（3D） flower-like NiSe2@C composite is delicately designed and assembled with onedimensional nanorods and carbon *** importantly,the fundamental mechanism of improved structure stability is unveiled by simulations and experimental results *** demonstrates that this designed multidimensional flower-like architecture with dispersed nanorods can balance the structural mismatch,avoid concentrated local strain,and relax the internal stress,mainly induced by the unavoidable volume variation during the repeated conversion ***,it can provide more Na+-storage sites and multi-directional migration pathways,leading to a fast Na+-migration channel with boosted reaction *** expected,it delivers superior rate performance(441 mA h g-1at 5.0 A g-1) and long cycling stability(563 mA h g-1at 1.0 A g-1over 1000 cycles) for *** work provides useful insights for designing high-performance conversion-based anode materials for SIBs.

关键词： Conversion-based anodes Multi-dimensional architecture Sodium-ion batteries Stress dissipation Structure engineering

Properties of the drip-line nucleus and mass relation of mirror nuclei

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Nuclear Science and Techniques 2025年第2期36卷 112-122页

作者： Meng-Ting Wan Li ou Min Liu Ning Wang College of Physics and Technology Guangxi Normal UniversityGuilin 541004China Guangxi Key Laboratory of Nuclear Physics and Technology Guangxi Normal UniversityGuilin 541004China

The isospin asymmetry and quadrupole deformation value of drip-line nuclei are investigated using the Weizsäcker-Skyrme nuclear mass *** observe that for heavy nuclei at the neutron drip line,the Coulomb energy heightened by an aug-mented charge could not be mitigated completely by symmetry energy because of isospin asymmetry saturation but is resisted complementally by strong nuclear *** positions of saltation for the difference in proton numbers between two neighboring nuclei at the neutron drip line,and the isospin asymmetry of the neutron drip-line nucleus as a function of the neutron number distinctly correspond to the known magic numbers,which can serve as a reference to verify the undeter-mined neutron magic *** fitting of the binding energy difference between mirror nuclei(BEDbMN),a set of Coulomb energy coefficients with greater accuracy is obtained.A high-precision description of the BEDbMN is useful for accurately determining the experimentally unknown mass of the nucleus close to the proton drip line if the mass of its mirror nucleus is measured experimentally.

关键词： Nuclear mass formula Drip-line nucleus Magic number Mirror nuclei Coulomb energy

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社交网络节点重要性识别研究进展

电子科技大学学报 2025年第1期54卷 125-151页

作者：郭强欧阳江明珠刘建国上海理工大学管理学院上海200093 上海哔哩哔哩科技有限公司人工智能平台部上海200433 上海大学管理学院上海200444 上海财经大学数字经济系上海200433

准确识别社交网络中的节点重要性对于促进或抑制信息传播、遏制疾病传播具有重要意义,同时在精准营销和社会治理等领域也具有重要理论意义和应用价值。该文从4个角度对节点影响力识别算法进行总结和梳理,具体包括:基于微观局部结构、中... 详细信息

准确识别社交网络中的节点重要性对于促进或抑制信息传播、遏制疾病传播具有重要意义,同时在精准营销和社会治理等领域也具有重要理论意义和应用价值。该文从4个角度对节点影响力识别算法进行总结和梳理,具体包括:基于微观局部结构、中观的社团结构、宏观全局结构及基于机器学习的算法。详细介绍了其中的代表性算法,并从不同层面分析了不同算法的优缺点。此外还总结了常用的传播动力学模型和评价指标。最后提炼了仍需解决的问题和未来可能的研究方向。

关键词：社交网络节点重要性社团结构机器学习

Attribute grouping-based naive Bayesian classifier

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Science China(Information Sciences) 2025年第03期68卷 125-149页

作者： Yulin HE Guiliang ou Philippe FouRNIER-VIGER Joshua Zhexue HUANG Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ) College of Computer Science & Software Engineering Shenzhen University

The naive Bayesian classifier(NBC) is a supervised machine learning algorithm having a simple model structure and good theoretical interpretability. However, the generalization performance of NBC is limited to a large extent by the assumption of attribute independence. To address this issue, this paper proposes a novel attribute grouping-based NBC(AG-NBC), which is a variant of the classical NBC trained with different attribute groups. AG-NBC first applies a novel effective objective function to automatically identify optimal dependent attribute groups(DAGs). Condition attributes in the same DAG are strongly dependent on the class attribute, whereas attributes in different DAGs are independent of one another. Then,for each DAG, a random vector functional link network with a SoftMax layer is trained to output posterior probabilities in the form of joint probability density estimation. The NBC is trained using the grouping attributes that correspond to the original condition attributes. Extensive experiments were conducted to validate the rationality, feasibility, and effectiveness of AG-NBC. our findings showed that the attribute groups chosen for NBC can accurately represent attribute dependencies and reduce overlaps between different posterior probability densities. In addition, the comparative results with NBC, flexible NBC(FNBC), tree augmented Bayes network(TAN), gain ratio-based attribute weighted naive Bayes(GRAWNB), averaged one-dependence estimators(AODE), weighted AODE(WAODE), independent component analysis-based NBC(ICA-NBC), hidden naive Bayesian(HNB) classifier, and correlation-based feature weighting filter for naive Bayes(CFW) show that AG-NBC obtains statistically better testing accuracies, higher area under the receiver operating characteristic curves(AUCs), and fewer probability mean square errors(PMSEs) than other Bayesian classifiers. The experimental results demonstrate that AG-NBC is a valid and efficient approach for alleviating the attribute i

关键词： naive Bayesian classifier attribute independence assumption attribute grouping dependent attribute group posterior probability class-conditional probability

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An in-depth understanding of the role and mechanisms of T cells in immune organ aging and age-related diseases

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Science China(Life Sciences) 2025年第2期68卷 328-353页

作者： Yudai Xu Zijian Wang Shumin Li Jun Su Lijuan Gao Junwen ou Zhanyi Lin Oscar Junhong Luo Chanchan Xiao guobing Chen Department of Microbiology and Immunology School of MedicineInstitute of Geriatric ImmunologySchool of MedicineJinan UniversityGuangzhou 510632China Key Laboratory of Viral Pathogenesis&Infection Prevention and Control(Jinan University) Ministry of EducationGuangzhou 510632China Guangdong-Hong Kong-Macao Great Bay Area Geroscience Joint Laboratory School of MedicineJinan UniversityGuangzhou 510632China First Affiliated Hospital Jinan UniversityGuangzhou 510630China Anti Aging Medical Center Clifford HospitalGuangzhou 511495China Guangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences) Southern Medical UniversityGuangzhou 510080China Department of Systems Biomedical Sciences School of MedicineJinan UniversityGuangzhou 510632China The Sixth Affiliated Hospital of Jinan University(Dongguan Eastern Central Hospital) Jinan UniversityDongguan 523000China Zhuhai Institute of Jinan University Jinan UniversityZhuhai 519070China

T cells play a critical and irreplaceable role in maintaining overall ***,their functions undergo alterations as individuals *** is of utmost importance to comprehend the specific characteristics of T-cell aging,as this knowledge is crucial for gaining deeper insights into the pathogenesis of aging-related diseases and developing effective therapeutic *** this review,we have thoroughly examined the existing studies on the characteristics of immune organ ***,we elucidated the changes and potential mechanisms that occur in T cells during the aging ***,we have discussed the latest research advancements pertaining to T-cell agingrelated *** findings provide a fresh perspective for the study of T cells in the context of aging.

关键词： T cell aging immune organ age-related diseases

Estimates of required impurity fraction for EAST divertor detachment

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Plasma Science and Technology 2025年第1期27卷 30-38页

作者： Jing ou Jiamin LONG Institute of Plasma Physics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031People’s Republic of China University of Science and Technology of China Hefei 230026People’s Republic of China

During the EAST radiative divertor experiments,one of the key challenges was how to avoid the occurrence of disruptive events caused by excessive impurity *** estimate the required impurity fraction for divertor detachment,we introduce a reduced edge plasma radiation *** the model,based on the momentum conservation along the magnetic field line,the upstream pressure is determined by the plasma density and temperature at the divertor target,and then the impurity radiation loss is obtained by the balance of the heat and particle *** is found that the required impurity fraction shows a non-monotonic variation with divertor electron temperature(T_(d))when 0.1 eVout *** addition,for the various fitting parameters in the pressure-momentum loss model,it is shown that the tendency of required impurity fraction with T_(d)always increases first and then decreases in the range of 1 eV

关键词： divertor detachment impurity radiative divertor reduced physics model

Purple red rice bran anthocyanins ameliorate inflammatory response induced by LPS from Porphyromonas gingivalis in RAW264.7 cells via suppressing NF- κB and AP-1 signaling pathways

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Food Science and Human Wellness 2025年

作者： Jilan Jiao Junwei Zhao Ting Chen Liwei Zeng Xiangke Ci Jianhua Xie Xiaoyan ou Affiliated Stomatological Hospital of Nanchang University State Key Laboratory of Food Science and Resources， Nanchang University

Periodontitis， a persistent inflammatory condition， targets the gums and periodontal structures， negatively impacting health. Systemic and local antimicrobials are often used to treat periodontitis， but they may lead to adverse effects such as drug resistance and ecological imbalance. As natural water-soluble pigment， anthocyanins has been reported to be an effective antiinflammatory， antiobesity， anticancer， antimicrobial and so on. The purpose of the study was to elucidate the anti-inflammatory effects and potential molecular mechanisms of purple rice bran anthocyanins (PRBA) on RAW264.7 cells induced by lipopolysaccharide from Porphyromonas gingivalis (Pg-LPS). The results indicated that PRBA inhibited the expression of iNOS and COX-2 in RAW264.7 cells， reduced the level of NO， TNF-α， and IL-6， while increasing the expression of Arg-1 and the production of IL-10 in RAW264.7 cells. Among them， cyanidin-3-glucoside and peonidin-3-glucoside， the two main anthocyanin glycosides in PRBA， also had the same effect. RNA-seq results revealed that there were 1，840 differentially expressed genes (DEGs) after PRBA treatment， with 1263 upregulated and 577 downregulated. Western blot also confirmed that PRBA significantly inhibited the activation of NF-κB and AP-1 in RAW264.7 cells. In summary， these findings suggested that PRBA inhibited the expression of proinflammatory cytokines in RAW264.7 cells induced by Pg-LPS through the NF-κB and AP-1 pathways， which providing its potential application in the treatment of periodontitis for anti-inflammatory effects.

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国家能力与民主制度:兼论中国式现代化的世界意义

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理论学刊 2025年第1期 68-77页

作者：欧树军中国人民大学国际关系学院北京100872

国家能力是现代化的阶梯,国家的能力建设与民主建设息息相关。秉持转型范式的民主研究主要指向三大议题:民主的条件、民主的巩固、民主的质量,也就是民主的发生、成长和成熟。转型范式的内在张力彰显了国家能力的重要性。民主的危机源... 详细信息

国家能力是现代化的阶梯,国家的能力建设与民主建设息息相关。秉持转型范式的民主研究主要指向三大议题:民主的条件、民主的巩固、民主的质量,也就是民主的发生、成长和成熟。转型范式的内在张力彰显了国家能力的重要性。民主的危机源于国家能力的弱化。国家能力既关乎国家治理的水平,也关乎民主制度的水平,关乎民主的条件、巩固和质量,影响民主的生成、成长和成熟。在政治生活中,重新拿回并安放国家能力这个被西方刻意丢弃的现代化之梯,让国家建设与民主建设相辅相成,堪称中国式现代化起步、行稳和致远的核心经验。

关键词：转型范式国家能力民主制度中国式现代化