检索结果-南通市图书馆

Changes in source contributions to the oxidative potential of PM_(2.5)in urban Xiamen,China

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental sciences 2025年第3期149卷 342-357页

作者： Jia-Min Li Si-Min Zhao Qi-Yu Miao Shui-Ping Wu Jie Zhang James J.Schwab fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies Xiamen UniversityXiamen 361102China Center for Marine Environmental Chemistry and Toxicology College of Environment and EcologyXiamen UniversityXiamen 361102China Atmospheric sciences Research Center University at AlbanySUNYAlbany 12226USA

The toxicity of PM_(2.5)does not necessarily change synchronously with its mass *** this study,the chemical composition(carbonaceous species,water-soluble ions,and metals)and oxidative potential(dithiothreitol assay,DTT)of PM_(2.5)were investigated in 2017/2018 and 2022 in Xiamen,*** decrease rate of volume-normalized DTT(DTTv)(38%)was lower than that of PM_(2.5)(55%)between the two sampling ***,the mass-normalized DTT(DTTm)increased by 44%.Clear seasonal patterns with higher levels in winter were found for PM_(2.5),most chemical constituents and DTTv but not for *** large decrease in DTT activity(84%−92%)after the addition of EDTA suggested that watersoluble metals were the main contributors to DTT in *** increased gap between the reconstructed and measured DTTv and the stronger correlations between the reconstructed/measured DTT ratio and carbonaceous species in 2022were *** decrease rates of the hazard index(32.5%)and lifetime cancer risk(9.1%)differed from those of PM_(2.5)and DTTv due to their different main *** PMF-MLR model showed that the contributions(nmol/(min·m^(3)))of vehicle emission,coal+biomass burning,ship emission and secondary aerosol to DTTv in 2022 decreased by 63.0%,65.2%,66.5%,and 22.2%,respectively,compared to those in 2017/2018,which was consistent with the emission reduction of vehicle exhaust and coal consumption,the adoption of low-sulfur fuel oil used on board ships and the reduced production of ***,the contributions of dust+sea salt and industrial emission increased.

关键词： Chemical composition Oxidative potential Interannual change PMF-MLR Source apportionment

Pyroptosis,ferroptosis,and autophagy in spinal cord injury:regulatory mechanisms and therapeutic targets

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第10期20卷 2787-2806页

作者： Qingcong Zheng Du Wang Rongjie Lin Weihong Xu Department of Spinal Surgery the First Affiliated Hospital of Fujian Medical UniversityFuzhouFujian ProvinceChina Arthritis Clinical and Research Center Peking University People’s HospitalBeijingChina Department of Orthopedic Surgery Fujian Medical University Union HospitalFuzhouFujian ProvinceChina

Regulated cell death is a form of cell death that is actively controlled by *** studies have shown that regulated cell death plays a key role after spinal cord *** and ferroptosis are newly discovered types of regulated cell deaths that have been shown to exacerbate inflammation and lead to cell death in damaged spinal ***,a complex form of cell death that is interconnected with various regulated cell death mechanisms,has garnered significant attention in the study of spinal cord *** injury triggers not only cell death but also cellular survival *** signaling pathways play pivotal roles in influencing the processes of both deterioration and repair in spinal cord injury by regulating pyroptosis,ferroptosis,and ***,this review aims to comprehensively examine the mechanisms underlying regulated cell deaths,the signaling pathways that modulate these mechanisms,and the potential therapeutic targets for spinal cord *** analysis suggests that targeting the common regulatory signaling pathways of different regulated cell deaths could be a promising strategy to promote cell survival and enhance the repair of spinal cord ***,a holistic approach that incorporates multiple regulated cell deaths and their regulatory pathways presents a promising multi-target therapeutic strategy for the management of spinal cord injury.

关键词： autophagy cell death ferroptosis inflammation pathological mechanisms pyroptosis regulated cell death regulatory pathways spinal cord injury therapeutic targets

Long noncoding RNA LINC01106 promotes lung adenocarcinoma progression via upregulation of autophagy

在线全文

学校读者我要写书评

暂无评论

Oncology Research 2025年第1期33卷 171-184页

作者： GENGYUN SUN YIPING ZHENG JIANFENG CAI JIE GAO LIE DONG XIANGBIN ZHANG YINGHUI HUANG Department of Respiratory and Critical Care Medicine The First Affiliated Hospital of Anhui Medical UniversityHefei230022China Department of Respiratory and Critical Care Medicine Nanping First Hospital Affiliated to Fujian Medical UniversityNanping353006China

Background:Long noncoding RNA,LINC01106 exhibits high expression in lung adenocarcinoma(LUAD)tumor tissues,but its functional role and regulatory mechanism in LUAD cells remain ***:LINC01106 expression was analyzed in LUAD tissues and its functional impact on LUAD cells was *** cells were silenced with sh-LINC01106 and injected into nude mice to investigate tumor *** downstream transcription factors and molecular mechanism were determined using the Human transcription factor database(TFDB)database and Gene Expression Profiling Interactive Analysis(GEPIA)***,the impact of linc01106 on autophagy was analyzed by determining the expression of autophagy-related genes(ATGs)in LUAD ***:Our results showed that LINC01106 exhibited upregulation in both LUAD tissues and cell *** silencing of LINC01106 demonstrated a suppressive effect on tumorigenesis in a xenograft mouse model of ***,LINC01106 was found to recruit TATA-binding protein-associated factor 15(TAF15),an RNA-binding protein,thereby enhancing the mRNA stability of TEA domain transcription factor 4(TEAD4).In turn,TEAD4 served as a transcription factor that bound to the LINC01106 promoter and regulated its *** assays indicated that LINC01106 promoted autophagy in LUAD cells by upregulating the expression of autophagy-related genes(ATGs).The silencing of LINC01106 in LUAD cells inhibited autophagy,and cell proliferation,and promoted apoptosis,which all were effectively reversed by ATG5 ***:Overall,LINC01106,transcriptionally activated by TEAD4,interacts with TAF15 to promote the stability of TEAD4 and upregulates the expression of ATGs,promoting malignancy of LUAD cells.

关键词： LINC01106 TAF15 TEAD4 ATG5 Lung adenocarcinoma(LUAD) Non-small cell lung cancer(NSCLC)

Carbon interconnected microsized Si film toward high energy room temperature solid-state lithium-ion batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2025年第2期36卷 531-535页

作者： Xin Li Ling Zhang Yunyan Fan Shaojing Lin Yong Lin Yongsheng Ying Meijiao Hu Haiying Gao Xianri Xu Zhongbiao Xia Xinchuan Lin Junjie Lu Xiang Han School of Information Engineering Fujian Business University College of Artificial Intelligence Yango University College of Materials science and Engineering Co-Innovation Center of Efficient Processing and Utilization of Forest Resources Nanjing Forestry University

Solid-state batteries （SSBs） with high-capacity Si anodes have been regarded as one of the most promising candidates to meet the large scale energy storage and electrical vehicles due to its intrinsic safety and potential high energy ***,Si suffers from poor electrical conductivity and huge volume change and particles fracture during lithiaiotn and delithiation,which induces low practical energy *** addition,the SSBs are often operated at high temperature due to the poor physical contact and huge resistance between Si and solid-state electrolyte （SSE）.To improve the bulk electronic/ionic conductivity of Si and its interfacial compatibility with SSE,herein,a binder free and self-supporting Si/C film was *** monolithic carbon not only enhance the electric conductivity but also release huge stress during lithiation and *** addition,paired with the flexible and soft poly（vinylidene fluoride）-co-hexafluoropropylene （PVDF-HFP） and Li1.3Al0.3Ti1.7（PO4）3（LATP） solid-state electrolyte,a LiF-rich and electrochemical stable solid-electrolyte interphase （SEI） layer is in-situ *** fast bulk and interfacial ionic transportation as well as the mechanical integrity of MSi enable high performance SSBs at room *** a result,high specific capacity of 2137 m Ah/g with an initial Coulombic efficiency of 83.2%is obtained at a rate of 0.5 A/*** at a high rate of 3 A/g,the specific capacity is1793 m Ah/*** a rate of 1 A/g,the Si/C anode delivers a long cycling performance over 500 cycles while maintains a capacity of 1135 mAh/*** work provides a new strategy that combines charge transfer kinetics and interfacial chemistry design toward high energy density Si-based SSBs.

关键词： Carbon coating Interphase Lithium-ion battery Silicon anode Solid-state electrolyte

A vascular endothelial growth factor–loaded chitosan-hyaluronic acid hydrogel scaffold enhances the therapeutic effect of adipose-derived stem cells in the context of stroke

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第12期20卷 3591-3605页

作者： Zhijian Zheng Xiaohui Lin Zijun Zhao Qiang Lin Ji Liu Manli Chen Wenwen Wu Zhiyun Wu Nan Liu Hongbin Chen Department of Neurology Fujian Medical University Union HospitalFuzhouFujian ProvinceChina Department of Rehabilitation Fujian Medical University Union HospitalFuzhouFujian ProvinceChina fujian Key Laboratory of Molecular Neurology Fujian Medical UniversityFuzhouFujian ProvinceChina Institute of Clinical Neurology Fujian Medical UniversityFuzhouFujian ProvinceChina

Adipose-derived stem cell,one type of mesenchymal stem cells,is a promising approach in treating ischemia-reperfusion injury caused by occlusion of the middle cerebral ***,its application has been limited by the complexities of the ischemic *** scaffolds,which are composed of hyaluronic acid and chitosan,exhibit excellent biocompatibility and biodegradability,making them promising candidates as cell *** endothelial growth factor is a crucial regulatory factor for stem *** hyaluronic acid and chitosan have the potential to make the microenvironment more hospitable to transplanted stem cells,thereby enhancing the therapeutic effect of mesenchymal stem cell transplantation in the context of ***,we found that vascular endothelial growth factor significantly improved the activity and paracrine function of adipose-derived stem ***,we developed a chitosan-hyaluronic acid hydrogel scaffold that incorporated vascular endothelial growth factor and first injected the scaffold into an animal model of cerebral ischemiareperfusion *** loaded with adipose-derived stem cells,this vascular endothelial growth factor–loaded scaffold markedly reduced neuronal apoptosis caused by oxygen-glucose deprivation/reoxygenation and substantially restored mitochondrial membrane potential and axon *** in vivo experiments revealed that this vascular endothelial growth factor–loaded hydrogel scaffold facilitated the transplantation of adipose-derived stem cells,leading to a reduction in infarct volume and neuronal apoptosis in a rat model of stroke induced by transient middle cerebral artery *** also helped maintain mitochondrial integrity and axonal morphology,greatly improving rat motor function and ***,utilizing a hydrogel scaffold loaded with vascular endothelial growth factor as a stem cell delivery system can mitigate the adverse effects of ischemic microenvironment

关键词： adipose-derived stem cells chitosan hyaluronic acid hydrogel ischemia-reperfusion oxygen-glucose deprivation/reoxygenation stroke transient middle cerebral artery occlusion transplantation vascular endothelial growth factor

Sodium citrate enhancing electrodeposition of metallic arsenic from toxic trivalent arsenic and the mechanism understanding

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental sciences 2025年第5期151卷 79-87页

作者： Shuiping Zhong Tingyu Xu Hang Chen Ding Tang Wen Tan Wei Weng Yanru Shi Zijin School of Geology and Mining Fuzhou UniversityFuzhou 350108China fujian Key Laboratory of Green Extraction and High-value Utilization of New Energy Metals Fuzhou UniversityFuzhou 350108China Zijin Mining Group Co. Ltd.ShanghangLongyan 364200China Inner Mongolia Academy of science and Technology Hohhot 010010China

Electrochemical conversion of hypertoxic trivalent arsenic to value-added metallic arsenic can not only contribute to pollution abatement,but also resources reutilization,therefore being widely *** reduction of trivalent arsenic as a promising way is widely ***,the high efficiency conversion is retarded by the sluggish reduction kinetics of AsO33−and fierce evolution of side products of both H_(2)and toxic AsH_(3).Herein,by using the sodium citrate as the additive,the current efficiency for metal arsenic production is increased greatly from 60%to 91%,with the accompanied evolution of hypertoxic AsH_(3)being restrained from 0.15 Nm^(3)/t_(As)to 0.022 Nm^(3)/t_(As),promising a high-efficiency and green *** electrochemical tests and electrode surface characterizations aswell as DFT calculations indicate that the added sodium citrate promotes both the diffusion of reactive AsO_(3)^(3−)towards the cathode and its subsequent adsorption on the Ti cathode,contributing to smoother reduction for generating metal arsenic,with the evolution of toxic AsH_(3)being hindered at the same *** results can provide new insights for the highefficiency and greener conversion of hypertoxic trivalent arsenic to value-added metallic arsenic.

关键词： Toxic arsenic Electrochemical conversion Metallic arsenic Sodium citrate

Existence of multi-hump generalized homoclinic solutions for a class of reversible systems

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

science China Mathematics 2025年第2期68卷 299-338页

作者： Shengfu Deng Yan Zhou Jinsen Zhuang School of Mathematical sciences Huaqiao UniversityQuanzhou 362021China

In this paper,we investigate a class of reversible dynamical systems in four *** spectrums of their linear operators at the equilibria are assumed to have a pair of positive and negative real eigenvalues and a pair of purely imaginary eigenvalues for the small parameterμ>0,where these two real eigenvalues bifurcate from a double eigenvalue 0 forμ=*** has been shown that this class of systems owns a generalized homoclinic solution with one hump at the center(a homoclinic solution exponentially approaching a periodic solution with a small amplitude).This paper gives a rigorous existence proof of two-hump *** two humps are far away and are glued by the small oscillations in the middle if some appropriate free constants are *** obtained results are also applied to some classical *** ideas here may be used to study the existence of 2^(k)-hump solutions.

关键词： homoclinic solutions multi-hump periodic solutions reversibility

In situ seed layer bandgap engineering leading to the conduction band offset reversion and efficient Sb2Se3 solar cells with high open-circuit voltage

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第2期101卷 201-212页

作者： Yanting Jiang Weiyu Wang Zhirong Chen Zhenyu Fang Qiqiang Zhu Qiao Zheng Jionghua Wu Hui Deng Weihuang Wang Shuying Cheng Fuzhou University Institute of Micronano Devices & Solar Cells College of Physics & Information Engineering Jiangsu Collaborative Innovation Center for Photovoltaic science and Engineering

Sb2Se3solar cells have achieved a power conversion efficiency（PCE） of over 10%.However,the serious open-circuit voltage deficit(VOC-deificit),induced by the hard-to-control crystal orientation and heterojunction interface reaction,limits the PCE of vapor transport deposition（VTD） processed Sb2Se3solar *** overcome the VOC-deficit problem of VTD processed Sb2Se3solar cells,herein,an in-situ bandgap regulation strategy is innovatively proposed to prepare a wide band gap Sb2（S,Se）3seed layer（WBSL） at CdS/Sb2Se3heterojunction interface to improve the PCE of Sb2Se3solar *** analysis results show that the introduced Sb2（S,Se）3seed layer can enhance the [001] orientation of Sb2Se3thin films,broaden the band gap of heterojunction interface,and realize a "Spike-like" conduction band alignment withΔEc=0.11 *** addition,thanks to the suppressed CdS/Sb2Se3interface reaction after WBSL application,the depletion region width of Sb2Se3solar cells is widened,and the quality of CdS/Sb2Se3interface and the carrier transporting performance of Sb2Se3solar cells are significantly improved as ***,the harmful Se vacancy defects near the front interface of Sb2Se3solar cells can be greatly diminished by ***,the PCE of Sb2Se3solar cells is improved from 7.0% to 7.6%;meanwhile the VOCis increased to 466 mV which is the highest value for the VTD derived Sb2Se3solar *** work will provide a valuable reference for the interface and orientation regulation of antimony-based chalcogenide solar cells.

关键词： Band gap alignment Carrier transport Crystal orientation Open circuit voltage deficit Seed-layer

Experimental and Numerical Study of Bonding Capacity of Interface between Ultra-High Performance Concrete and Steel Tube

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Structural Durability & Health Monitoring 2025年第2期19卷 285-305页

作者： Ruikun Xu Jiu Li Wenjie Li Wei Zhang China Communications Third Highway Engineering Bureau Co. Ltd.Fuzhou350300China College of Civil Engineering Fujian University of TechnologyFuzhou350118China

This study investigates the bond performance at the interfacial region shared by Ultra-High Performance Concrete(UHPC)and steel tubes through push-out *** study examines how changes in steel fiber volumetric ratio and thickness of steel tube influence the bond strength *** results show that as the enhancement of the steel tube wall thickness,the ultimate bond strength at the interface improves significantly,whereas the initial bond strength exhibits only slight *** influence of steel fiber volumetric ratio presents a nonlinear trend,with initial bond strength decreasing at low fiber content and increasing significantly as fiber content ***,finite element(FE)simulations were applied to replicate the experimental conditions,and the outcomes showed strong correlation with the experimental data,confirming the exactitude of the FE model in predicting the bond behavior at the UHPC-Steel *** findings provide valuable insights for optimizing the design of UHPC-Filled steel tubes in high-performance structure.

关键词： Ultra-high performance concrete filled steel tube(UHPCFST) push-out test bonding capacity cohesive zone model