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Assessment of radiotherapy and diagnosis resources allocation in Shanghai,China

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Radiation Medicine and Protection 2024年第3期5卷 207-212页

作者： Fanqiaochu yang Cuihong Yuan Shunqi Lu Hong Xiao Linfeng Gao School of Public Health Fudan UniversityShanghai 200032China Shanghai Zhongye Hospital Shanghai 200941China Shanghai Municipal Center for Disease Control&Prevention Shanghai 200051China

Objective:To evaluate the equity of medical resources in radiotherapy and diagnosis in Shanghai,China,based on population,geography,and economic ***:Data on medical resources including institutions,equipment,and staff in radiotherapy/diagnosis were collected from all 16 districts of Shanghai,China in *** data were collected for institutions and devices in *** Gini coefficient(G)and Lorenz curves were used to assess fairness based on population and geography,while the Theil index(T)was employed to evaluate health equity based on economic *** resource agglomeration degree(HRAD)and population agglomeration degree(PAD)were utilized to analyze the equity and accessibility of medical resources considering both population and ***:In 2022,Shanghai had a total of 992 institutions,4,925 devices,and 10,282 personnel in radiotherapy and ***,there were 381 institutions conducting CT examinations and 776 CT machines in *** Gini coefficients for institutions,devices,and personnel in radiotherapy and diagnosis based on population ranged from 0.2 to 0.4,while for CT,the Gini coefficients for institutions and devices ranged from 0.2 to *** considering geography,all Gini coefficients were greater than *** results of the Theil index indicated that inequities in distribution may be influenced by economic *** HRAD and PAD revealed disparities in the accessibility of institutions,devices,and personnel in radiotherapy/diagnosis and CT in ***:Inequities in the distribution of institutions,equipment,and personnel for radiotherapy/diagnosis and CT were observed in Shanghai in 2022,both geographically and *** is a critical need to enhance the allocation of resources for radiological equipment and personnel and to establish a scientifically robust urban resource planning framework.

关键词： Radiotherapy/diagnosis CT Resources allocation Equality Accessibility

Surface active functional groups enhanced PET non-woven fabric for the filtering of harmful substances in smoke

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Biosurface and Biotribology 2024年第1期10卷 1-6页

作者： Lu Ning Pengfei Tang Xiong Lu Guangyuan yang Faxing Jiang Hongping Zhang China Tobacco Hubei Industrial Co LtdWuhanChina Failure Mechanics&Engineering Disaster Prevention and Mitigation Key Laboratory of Sichuan ProvinceCollege of Architecture&EnvironmentSichuan UniversityChengduChina School of Materials Science and Engineering Key Lab of Advanced Technologies of MaterialsMinistry of EducationSouthwest Jiaotong UniversityChengduSichuanChina School of Mechanical Engineering Institute for Advanced StudyChengdu UniversityChengduChina

Harmful components in cigarette smoke,such as nicotine,tar,and organic particulate matter,are the primary culprits behind lung *** conventional filter materials based on cellulose,carbon,and molecular sieves exhibit commendable filtration capabilities,their high cost restricts their widespread *** on this,the authors aim to prepare PET-based filter materials with good adsorption properties through a simple surface functionalisation *** adsorption performance of the PET-based non-woven fabric was enhanced by the introduction of sodium alginate(SA).The gas adsorption experiments results reveal that SA-modified PET(SA-PET)exhibits significantly improved filtration efficiency for nicotine,tar,and total particulate matter—increasing by 27.1%,26.2%,and 21.3%,***,SA-PET exhibits more odour control ability than traditional activated carbon-based filter *** results prove that surface-functionalised SA-PET has better filtration performance for harmful substances in smoke and provides a new strategy for the design of high-performance filtration materials.

关键词： adsorption mechanism polymers

氢能交互下的多区域电氢综合能源系统可靠性提升策略

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电工技术学报 2024年第16期39卷 5011-5027页

作者：蒙军任洲洋王皓输变电装备技术全国重点实验室(重庆大学电气工程学院) 重庆400044 贵州电网有限责任公司遵义供电局遵义563000

针对现有研究未考虑区域供氢网间能量交互的灵活运行特征,难以有效评估并提升多区域电氢综合能源系统可靠供能水平的问题,该文提出考虑氢能交互的多区域电氢综合能源系统可靠性评估方法。首先,剖析区域间氢能交互通道与区域内供氢网灵... 详细信息

针对现有研究未考虑区域供氢网间能量交互的灵活运行特征,难以有效评估并提升多区域电氢综合能源系统可靠供能水平的问题,该文提出考虑氢能交互的多区域电氢综合能源系统可靠性评估方法。首先,剖析区域间氢能交互通道与区域内供氢网灵活资源的协调配合规律,提出多区域电氢综合能源系统协同运行机制及其运行模型;其次,以系统总运行成本最小为目标,建立计及氢能交互的多区域电氢综合能源系统最优负荷削减模型,从区域间能量交互水平及其对系统可靠性水平的提升作用等角度出发,建立多区域电氢综合能源系统可靠性评估指标,并基于马尔科夫链蒙特卡洛模拟提出氢能交互下的多区域电氢综合能源系统可靠性评估方法;最后,通过仿真算例分析验证了所提方法的正确性和有效性。该策略能充分挖掘、利用区域间的氢能交互,从而有效提升多区域电氢综合能源系统供能可靠性水平。

关键词：多区域电氢综合能源系统氢能交互马尔科夫链蒙特卡洛供能可靠性

Amend:An integrated platform of retracted papers and concerned papers

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Journal of Data and Information Science 2024年第2期9卷 41-55页

作者： menghui Li Fuyou Chen Sichao Tong Liying yang Zhesi Shen National Science Library Chinese Academy of SciencesBeijing 100190China Department of Information Resources Management School of Economics and ManagementUniversity of Chinese Academy of SciencesBeijing 100190China

Purpose:The notable increase in retraction papers has attracted considerable attention from diverse *** sources are now offering information related to research integrity,including concerns voiced on social media,disclosed lists of paper mills,and retraction notices accessible through journal ***,despite the availability of such resources,there remains a lack of a unified platform to consolidate this information,thereby hindering efficient searching and ***,it is imperative to develop a comprehensive platform for retracted papers and related *** article aims to introduce“Amend,”a platform designed to integrate information on research integrity from diverse ***/methodology/approach:The Amend platform consolidates concerns and lists of problematic articles sourced from social media platforms(e.g.,PubPeer,For Better Science),retraction notices from journal websites,and citation databases(e.g.,Web of Science,CrossRef).Moreover,Amend includes investigation and punishment announcements released by administrative agencies(e.g.,NSFC,MOE,MOST,CAS).Each related paper is marked and can be traced back to its information source via a provided ***,the Amend database incorporates various attributes of retracted articles,including citation topics,funding details,open access status,and *** reasons for retraction are identified and classified as either academic misconduct or honest errors,with detailed subcategories provided for further ***:Within the Amend platform,a total of 32,515 retracted papers indexed in SCI,SSCI,and ESCI between 1980 and 2023 were *** these,26,620(81.87%)were associated with academic *** retraction rate stands at 6.64 per 10,000 ***,the retraction rate for non-gold open access articles significantly differs from that for gold open access articles,with this disparity progressively widening over the ***,the reasons

关键词： Research Integrity Retraction Rate Academic Misconduct Reasons for Retraction Temporal Trends

Polyethylene imine functionalized porous carbon framework for selective nitrogen dioxide sensing with smartphone communication

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Chinese Chemical Letters 2024年第9期35卷 432-436页

作者： Xiaxia Xing Xiaoyu Chen Zhenxu Li Xinhua Zhao Yingying Tian Xiaoyan Lang Dachi yang Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology Engineering Research Center of Thin Film Optoelectronics TechnologyMinistry of Education and Department of ElectronicsCollege of Electronic Information and Optical EngineeringNankai UniversityTianjin 300350China

Highly selective and remotely communicable nitrogen dioxide(NO_(2))sensing may contribute to future Internet of Things in environmental ***,room-temperature NO_(2)sensing materials such as carbon materials is still less than satisfactory due to their insensitive interaction with target ***,polyethylene imine functionalized three-dimensional(3D)carbon framework(PEI/C framework)has been developed for enhanced selective NO_(2)sensing,via combined template synthesis and subsequent ***,the 3D PEI/C framework is observed porous shape with irregular ***,the response of C framework to NO_(2)increases while those of interfering gases decrease after being functionalized with ***,the sensor prototypes show a 100 ppb-concentration detection limit at room ***,such excellent NO_(2)sensing is attributed to the large specific surface ratio of porous 3D PEI/C framework,in which PEI serves as an active layer for target NO_(2),while a passivated one for interfering ***,such PEI/C framework sensor prototype is simulated for NO_(2)sensing device and communicated with a smartphone,showing great potential in future intelligent environmental monitoring.

关键词： PEI/C framework Nitrogen dioxide sensing Enhanced selectivity Smartphone communication Practical monitoring simulation

Manganese-Catalyzed Regioselective Hydroboration of Quinolines via Metal-Ligand Cooperation

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CCS Chemistry 2024年第6期6卷 1535-1546页

作者： Yujie Wang Hengxu Li Haobo yang Mingjie Fan Qiang Liu Center of Basic Molecular Science(CBMS) Department of ChemistryTsinghua UniversityBeijing 100084

Selective reduction of readily available N-heteroarenes is important in both organic synthesis and chemical ***,we describe ligand-controlled regiodivergent hydroboration of quinolines using well-defined amido-manganese catalysts,with an emphasis on the rarely reported 1,*** studies showed that 1,2-hydroboration of quinoline was kinetically favorable and reversible,whereas 1,4-hydroboration was under thermodynamic *** a 1-methyimidazolebased pincer amido-manganese complex as the catalyst,cooperative C-H…N andπ…πnoncovalent interactions between the 1-methyimidazole moiety and quinoline substrates enabled kinetic accessibility of 1,4-hydroboration,giving thermodynamically favored 1,4-hydroborated quinolines as the major *** this basis,Mn-catalyzed 1,4-hydroboration of a series of substituted quinolines proceeded smoothly in high yields.A high turnover number of 2500 was achieved in this reaction with satisfying *** transformation could be further applied to the C3-selective functionalization of quinolines,highlighting the synthetic utility of this *** contrast,using a pyridine-based pincer amido-manganese complex as the catalyst,which lacked the C-H…N interaction,the free-energy barrier for 1,4-hydroboration significantly increased through a N-B…N interaction between the“HMn-NB”species and quinoline,resulting in the kinetically favored 1,2-hydroboration product with excellent regioselectivity.

关键词： catalytic hydroboration N-heteroarenes regioselectivity manganese catalysis metal-ligand cooperation

Chemical short-range-order induced multiscale strengthening in refractory medium entropy alloys

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Acta Mechanica Sinica 2024年第6期40卷 41-49页

作者： Weizheng Lu yang Chen Jia Li Peter K.Liaw Qihong Fang State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body College of Mechanical and Vehicle EngineeringHunan UniversityChangsha410082China Department of Materials Science and Engineering The University of TennesseeKnoxvilleTN37996USA

High/medium entropy alloys(H/MEAs)are generally possible to exhibit chemical short-range order(SRO).However,the complex role of SRO on mechanical properties from nano-scale to meso-scale is still challenging so ***,we study the strengthening mechanism and deformation behavior in a model body-centered-cubic HfNbTa MEA by using atomic-scale molecular dynamics,micro-scale dislocation dynamics,and meso-scale crystal plasticity finite *** SRO inhibits dislocation nucleation at the atomic scale,improving the flow *** SRO-induced ultrastrong local stress fluctuation greatly improves the micro-scale dislocation-based strength by the significant dislocation forest ***,the Ta-rich locally ordered structure leads to an obvious heterogeneous strain and stress partitioning,which forms a strong strain gradient in the adjacent grain interiors and contributes to the strong back-stress-induced strain hardening.

关键词： High/medium entropy alloys Multiscale strengthening Chemical short-range order

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面向语法加权图文本的方面情感三元组抽取

北京航空航天大学学报 2024年第2期50卷 409-418页

作者：韩虎孟甜甜兰州交通大学电子与信息工程学院兰州730070

方面情感三元组抽取包括方面抽取、意见抽取和方面情感分类3项任务,以管道方式解决该任务的研究方法无法利用元素之间的交互信息,同时也会造成错误传播和冗余训练。基于此,提出一种基于门控注意力和加权图文本的方面情感三元组抽取方法... 详细信息

方面情感三元组抽取包括方面抽取、意见抽取和方面情感分类3项任务,以管道方式解决该任务的研究方法无法利用元素之间的交互信息,同时也会造成错误传播和冗余训练。基于此,提出一种基于门控注意力和加权图文本的方面情感三元组抽取方法。采用双向长短时记忆网络学习句子的序列特征表示;利用门控注意力单元学习单词之间的线性联系;利用语法距离加权图卷积网络增强三元组元素之间的交互;利用网格标记推理策略预测三元组。在4个公开数据集上进行实验,结果表明:所提方法可以有效增强三元组元素之间的交互,提高三元组抽取的准确率;同时,所提方法的F1值分别为57.94%、70.54%、61.95%和67.66%,与基准模型相比均有所提高。

关键词：三元组抽取门控注意力加权图文本双向长短时记忆网络网格标记

IKIP downregulates THBS1/FAK signaling to suppress migration and invasion by glioblastoma cells

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Oncology Research 2024年第7期32卷 1173-1184页

作者： ZHAOYING ZHU YANJIA HU FENG YE HAIBO TENG GUOLIANG YOU YUNHUI zeNG meng TIAN JIANGUO XU JIN LI ZHIYONG LIU HAO LIU NIANDONG ZHENG Department of Neurosurgery The Affiliated Hospital of Southwestern Medical UniversityLuzhouChina Department of Neurosurgery Sichuan University West China HospitalChengduChina

Background:Inhibitor of NF-κB kinase-interacting protein(IKIP)is known to promote proliferation of glioblastoma(GBM)cells,but how it affects migration and invasion by those cells is ***:We compared levels of IKIP between glioma tissues and normal brain tissue in clinical samples and public *** examined the effects of IKIP overexpression and knockdown on the migration and invasion of GBM using transwell and wound healing assays,and we compared the transcriptomes under these different conditions to identify the molecular mechanisms ***:Based on data from our clinical samples and from public databases,IKIP was overexpressed in GBM tumors,and its expression level correlated inversely with *** overexpression in GBM cells inhibited migration and invasion in transwell and wound healing assays,whereas IKIP knockdown exerted the opposite *** overexpression in GBM cells that were injected into mouse brain promoted tumor growth but inhibited tumor invasion of surrounding *** effects of IKIP were associated with downregulation of THBS1 mRNA and concomitant inhibition of THBS1/FAK ***:IKIP inhibits THBS1/FAK signaling to suppress migration and invasion of GBM cells.

关键词： Inhibitor of NF-κB kinase-interacting protein(IKIP) Glioblastoma(GBM) Migration Thrombospondin 1(THBS1) FAK signaling