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养老保险对农村居民延迟退休意愿的影响——基于CHARLS数据的分析

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台湾农业探索 2024年第3期 18-25页

作者：熊诗洁林晨蕾福建农林大学公共管理与法学院福建福州350002

【目的/意义】人口老龄化是我国目前所面临的严峻问题,分析养老保险对延迟退休意愿的影响,鼓励广大农村居民留在劳动力市场,对老年人力资源进行开发利用,有利于减轻养老负担,更好地落实延迟退休政策,符合现今中国国情变化的需要。【方法... 详细信息

【目的/意义】人口老龄化是我国目前所面临的严峻问题,分析养老保险对延迟退休意愿的影响,鼓励广大农村居民留在劳动力市场,对老年人力资源进行开发利用,有利于减轻养老负担,更好地落实延迟退休政策,符合现今中国国情变化的需要。【方法/过程】利用2020年中国健康与养老追踪调查(CHARLS)的相关数据,对农村居民延迟退休意愿及计划退休年龄采取二元Logistics回归和OLS回归分析方法。【结果/结论】结果显示,养老保险对我国农村居民延迟退休意愿和计划退休年龄具有显著的正效应;并且,对于不同性别和地区的农村居民,养老保险对其延迟退休意愿的正效应有一定的差异,男性以及东西部地区的显著度较高。据此提出渐进推行延迟退休政策、设置激励引导机制、保障劳动者建言献策和制定针对性延迟退休方案等政策建议。

关键词：养老保险延迟退休意愿 CHARLS 人口老龄化

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Identification of a dual functional betulinic acid analog for the treatment of osteoarthritis by phenotypic screening

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Science China Life Sciences 2025年第1期68卷 300-302页

作者： Ze-Min Lin Mai Xiang Wen-Hui Wei Shu-Hui Fan Li Chen jie Wang Xiao-Qian Yang Chun-Hao Yang shi-Jun He Jian-Ping Zuo Laboratory of Immunopharmacology State Key Laboratory of Drug ResearchShanghai Institute of Materia MedicaChinese Academy of Sciences School of Pharmacy University of Chinese Academy of Sciences School of Pharmacy Nanjing University of Chinese Medicine State Key Laboratory of Drug Research Department of Medicinal ChemistryShanghai Institute of Materia MedicaChinese Academy of Sciences Innovation Research Institute of Traditional Chinese Medicine Shanghai University of Traditional Chinese Medicine Experiment Center for Science and Technology Shanghai University of Traditional Chinese Medicine

Dear Editor, Phenotypic drug discovery, which observes compound effects on physiology,has given way to targeting specific molecules, but has revived by using modern methods to find drugs based on therapeutic outcomes in disease models(Vincent et al., 2022). Osteoarthritis(OA) is a prevalent chronic joint disorder, primarily affecting knee joints, with osteoclast activation due to low-grade inflammation resulting in increased bone resorption and structural changes in the joint(Katz et al.,2021).

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A versatile synthetic strategy towards rare earth based metal-organic frameworks

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Science China Chemistry 2025年

作者： Quan shi Yun-Hao Xu Ming-Hui Chen Peng Zhao Wen-Bo Deng Ji xiong Kai Guo Ya-Qing Feng Bao Zhang School of Chemical Engineering and Technology Tianjin University Tianjin Collaborative Innovation Center of Chemical Science and Engineering Guangdong Laboratory Chemistry & Fine Chemical Industry jieyang Center

Rare earth metal-organic frameworks (RE-MOFs) have drawn wide attention owing to diverse network structures and various application ***,due to the unpredictable formation of the nodes,it is still challenging to design novel RE-MOFs.A novel versatile strategy was developed employing a RE-acetate complex (RE2(CH3COO)6·4H2O) as a precursor to construct RE-MOFs.2D RE-MOFs (RE-DBP) and 3D RE-MOFs (RE-TCPP) could be obtained by using dicarboxylic porphyrin ligands H2DBP and tetracarboxylic porphyrin ligands H2TCPP,*** RE-MOFs were further synthesized to verify the universality of the *** crystalline RE-MOFs could also be prepared at room temperature via the developed strategy,which could significantly promote large-scale preparation and practical application of *** proof of the concept,the performance of porphyrin-based RE-MOFs was investigated in the photocatalytic cycloaddition of CO2with *** the RE-DBP(Co) MOFs,Tb-DBP(Co) exhibited the best photocatalytic performance,which was also greater than that of the corresponding 3D MOF Tb-TCPP(Co) due to the optimal 2D structure and thus the accelerated photogenerated charge separation and transfer *** work not only provides a novel versatile strategy to design and develop RE-MOFs,but also proposes a promising approach for the potential bulk production of RE-MOFs at room temperature.

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非均匀无序系统中Anderson局域化的标度理论——实空间重整化群途径

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物理学报 1985年第12期 1530-1538页

作者：熊诗杰蔡建华南京大学固体物理研究所

针对大量具有空间调制的无序系统,本文提出一种实空间重整化群变换方案。这个方案保证了在空间映象下相对的空间调制结构不变,因此可用以研究非均匀无序系统Anderson局域化的临界性质。在有限晶格近似下,我们对无序金属超晶格的一个简... 详细信息

针对大量具有空间调制的无序系统,本文提出一种实空间重整化群变换方案。这个方案保证了在空间映象下相对的空间调制结构不变,因此可用以研究非均匀无序系统Anderson局域化的临界性质。在有限晶格近似下,我们对无序金属超晶格的一个简化模型求解了RG方程,得到不动点和临界指数的近似值,并发现空间调制在一定程度上引起无序系统电子局域化性质的改变。

关键词：原胞空间调制无序系统 Anderson 标度理论统计系综系综格点超晶格结构局域化

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关于组分调制结构的超模量效应

物理学报 1983年第8期 1073-1078页

作者：熊诗杰蔡建华南京大学固体物理研究所

本文用一简化的Thomas-Fermi方程,计算了组分调制结构中偏离局域电中性的电子分布及由此而引起的附加能量,从而导出了双轴模量随调制周期变化的关系。所得结果至少可以定性地解释在这类结构中实验发现的超模量效应。

关键词：调制结构模量电子分布电中性量效应调制周期超模

层状超薄共格结构(LUCS)电子态的紧束缚计算

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物理学报 1982年第4期 474-484页

作者：熊诗杰蔡建华南京大学固体物理研究所

本文就一种简单的模型,在紧束缚近似下,只计及最近邻之间的矩阵元,用格林函数方法计算了新近出现的人工材料——层状超薄共格结构——电子能带的亚结构,和投影于各层原子平面的电子局域态密度,在附录中,我们表述了用丸盒轨道(MTO)和界... 详细信息

本文就一种简单的模型,在紧束缚近似下,只计及最近邻之间的矩阵元,用格林函数方法计算了新近出现的人工材料——层状超薄共格结构——电子能带的亚结构,和投影于各层原子平面的电子局域态密度,在附录中,我们表述了用丸盒轨道(MTO)和界面平面波轨道(IPWO)的线性组合,更精密地计算电子结构的方法。

关键词： exp 紧束缚计算 LUCS 共格电子态层状

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关于多层超薄共格结构的导电性质

物理学报 1984年第3期 352-361页

作者：熊诗杰蔡建华南京大学固体物理研究所

实验表明Nb/Ti多层超薄共格结构有特殊导电行为。我们认为这种行为反映了这类人工材料的超晶格能带结构特性。随着超晶格周期变小,它由金属的性质向半导体或半金属的性质过渡。超晶格调制使多层超薄共格结构中的电子态分为扩展的和在调... 详细信息

实验表明Nb/Ti多层超薄共格结构有特殊导电行为。我们认为这种行为反映了这类人工材料的超晶格能带结构特性。随着超晶格周期变小,它由金属的性质向半导体或半金属的性质过渡。超晶格调制使多层超薄共格结构中的电子态分为扩展的和在调制方向定域性很强的两种;它们在沿调制方向具有相差很大的有效质量。我们分别考虑两类电子态的贡献,计算了电阻率和电阻温度系数随超晶格周期的变化,结果显示出实验观察的行为。

关键词：导电性质共格态密度金属层费密能

Slow recovery from excitation of thalamic reticular nucleus neurons

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Slow recovery from excitation of thalamic reticular nucleus ...

miRNA-21-5p is an important contributor to the promotion of injured peripheral nerve regeneration using hypoxia-pretreated bone marrow-derived neural crest cells

中国神经科学学会第四次会员代表大会暨第七届全国学术会议

作者： xiong-jie YU~1,shi-Gang HE~1,Ju-Fang HE~(1,2) 1 Institute of Biophysics,Chinese Academy of Sciences,Beijing 100101,China 2 Depatment of Rehabilitation Sciences,The Hong Kong Polytechnic University,Hong Kong

＜正＞Objective To investigate the temporal response property of the thalamic reticular nucleus（TRN）.Methods Extracelluary recording was made in the TRN auditory sector and medial geniculate body（MGB） while the noise burst was presented to the rat with interstimuli interval（ISI） from 200 ms to *** The neuronal responses to the repeated auditory stimuli and electrical stimulation were examined on 95 neurons in the auditory sector of the thalamic reticular nucleus and 21 medial geniculate neurons from anesthetized *** TRN neurons showed strong response to the first trial and weak response to *** trials of the repeated auditory stimuli,when the inter-stimulus interval was short （＜3 s）.They responded in the second trial with a firing and sustaining of oscillation similar to that in the first trial,when the ISI was increased to 7 s or even *** was of a great contrast to the MGB neurons,which responded similarly to the repeated auditory stimuli of different *** TRN neurons showed a statistically significant increase in the onset auditory response from 20 Hz to 72 Hz when the ISI was increased from 200 ms to 10 s（P ＜ 0.001,ANOVA）.The TRN neurons responded to repeated electrical stimulation of MGB and auditory cortex similarly to the repeated auditory *** stimuli evoked oscillatory firing activities in the TRN *** sustaining of the oscillation was longer when the ISI was *** sustaining of the oscillation was correlated with the latency of the second cluster of spikes,implying that the oscillation consisted of LTS *** The slow recovery of the TRN neurons after oscillation of burst firings to fast repetitive stimulus was a reflection of a different role than the thalamocortical relay *** that the TRN is involved in the process of attention such as attention shift,the slow recovery of TRN neurons probably limits the frequent change of the attention in a fast rhythm.

关键词： thalamic reticular nucleus oscillation medial geniculate body auditory response electrical stimulation auditory cortex

来源： cnki会议评论

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Neural Regeneration Research 2025年第1期20卷 277-290页

作者： Meng Cong Jing-Jing Hu Yan Yu Xiao-Li Li Xiao-Ting Sun Li-Ting Wang Xia Wu Ling-jie Zhu Xiao-Jia Yang Qian-Ru He Fei Ding Hai-Yan shi School of Medicine Nantong UniversityNantongJiangsu ProvinceChina Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education and Coinnovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina Department of Physiology Jiangsu Health Vocational CollegeNanjingJiangsu ProvinceChina Department of Pathology Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina

Our previous study found that rat bone marrow–derived neural crest cells(acting as Schwann cell progenitors)have the potential to promote long-distance nerve ***-based therapy can enhance peripheral nerve repair and regeneration through paracrine bioactive factors and intercellular ***,the complex contributions of various types of soluble cytokines and extracellular vesicle cargos to the secretome remain *** investigate the role of the secretome and extracellular vesicles in repairing damaged peripheral nerves,we collected conditioned culture medium from hypoxia-pretreated neural crest cells,and found that it significantly promoted the repair of sensory neurons damaged by oxygen-glucose *** mRNA expression of trophic factors was highly expressed in hypoxia-pretreated neural crest *** performed RNA sequencing and bioinformatics analysis and found that miR-21-5p was enriched in hypoxia-pretreated extracellular vesicles of neural crest ***,to further clarify the role of hypoxia-pretreated neural crest cell extracellular vesicles rich in miR-21-5p in axonal growth and regeneration of sensory neurons,we used a microfluidic axonal dissociation model of sensory neurons in vitro,and found that hypoxia-pretreated neural crest cell extracellular vesicles promoted axonal growth and regeneration of sensory neurons,which was greatly dependent on loaded ***,we constructed a miR-21-5p-loaded neural conduit to repair the sciatic nerve defect in rats and found that the motor and sensory functions of injured rat hind limb,as well as muscle tissue morphology of the hind limbs,were obviously *** findings suggest that hypoxia-pretreated neural crest extracellular vesicles are natural nanoparticles rich in ***-21-5p is one of the main contributors to promoting nerve regeneration by the neural crest cell *** helps to explain the mechanism of action of the secretome and e

关键词： axotomy cell-free therapy conditioned medium extracellular vesicles hypoxic preconditioning microRNA oxygen-glucose deprivation peripheral nerve injury Schwann cell precursors

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