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Associations of centralization with health care quality for gastric cancer patients receiving gastrectomy in China

Chinese Journal of Cancer Research 2021年第6期33卷 659-670页

作者： Jiafu Ji leiyu shi Xiangji Ying Xinpu Lu Fei Shan Haibo Wang Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing) Center of Gastrointestinal CancerPeking University Cancer Hospital&InstituteBeijing 100142China Department of Health Policy and Management Johns Hopkins University Bloomberg School of Public HealthBaltimoreMD 21205USA Key Laboratory of Carcinogenesis and Translational Research(Ministry7 of Education/Beijing) Peking University Cancer Hospital&InstituteBeijing 100142China Clinical Trial Unit the First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080China

Objective:Limited evidence is available regarding the associations of centralization with gastric cancer patients’quality of care in high surgical volume *** current study aimed to explore the effects of hospital volume and the Herfindahl-Hirschman index(HHI)on in-hospital mortality,total cost,and length of stay for Chinese gastrectomy patients in a nationwide ***:We extracted data on gastrectomy for gastric cancer from the Hospital Quality Monitoring System Database between 2013 and *** volume was divided into 4 quartiles:low(1-83 cases per year),medium(84-238 cases),high(239-579 cases),and very high(580-1,193 cases).The HHI was divided into 3 categories:highly concentrated(>2,500),moderately concentrated(1,500-2,500),and unconcentrated(<1,500).We used mixed-effects models to analyze the data while accounting for data ***:We analyzed 125,683 patients in 515 *** the multivariable analyses,hospital volume was significantly associated with in-hospital mortality[medium ***:odds ratio(OR)=0.61,95%confidence interval(95%CI)=0.43-0.84,P=0.003;high:OR=0.57,95%CI=0.38-0.87,P=0.009;and very high:OR=0.33,95%CI=0.18-0.61,P<0.001)and length of stay(high ***:β=-0.036,95%CI=-0.071--0.002,P=0.039)but not with total *** located in unconcentrated provinces had higher in-hospital mortality(OR=1.52,95%CI=1.03-2.26,P=0.036)and longer lengths of stay(β=0.024,95%CI=0.001-0.047,P=0.041)than hospitals located in highly concentrated ***:Centralization of gastrectomy,measured by hospital volume and the HHI,was associated with decreased in-hospital mortality and shortened length of stay without increasing total *** results support the strategy of centralizing gastrectomy in high-volume settings.

关键词： Centralization gastric cancer Herfindahl-Hirschman index hospital volume quality of care

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Data mining-based model and risk prediction of colorectal cancer by using secondary health data:A systematic review

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Chinese Journal of Cancer Research 2020年第2期32卷 242-251页

作者： Hailun Liang Lei Yang Lei Tao leiyu shi Wuyang Yang Jiawei Bai Da Zheng Ning Wang Jiafu Ji School of Public Administration and Policy Renmin University of ChinaBeijing 100872China Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing) Beijing Office for Cancer Prevention and ControlPeking University Cancer Hospital&InstituteBeijing 100142China Departm ent of Public Policy City University of Hong KongHong Kong SAR999077China Johns Hopkins Primary Care Policy Center BaltimoreMD 21205USA Ddepartment of Neurosurgery Johns Hopkins MedicineBaltimoreMD 21205USA Department of Biostatistics Johns Hopkins Bloomberg School of Public HealthBaltimoreMD 21205USA Department of Computer Science Johns Hopkins Whiting School of EngineeringBaltimoreMD 21205USA Key Laboratory of Carcinogenesis and Translational Research(Ministiy of Education/Beijing) Center of Gastrointestinal SurgeryPeking University Cancer Hospital&InstituteBeijing 100142China

Objective:Prevention and early detection of colorectal cancer(CRC)can increase the chances of successful treatment and reduce *** data mining technologies have been utilized to strengthen the early detection of CRC in primary *** synthesis on the model’s effectiveness is *** systematic review synthesizes studies that examine the effect of data mining on improving risk prediction of ***:The PRISMA framework guided the conduct of this *** obtained papers via Pub Med,Cochrane Library,EMBASE and Google *** appraisal was performed using Downs and Black’s quality *** evaluate the performance of included models,the values of specificity and sensitivity were comparted,the values of area under the curve(AUC)were plotted,and the median of overall AUC of included studies was ***:A total of 316 studies were reviewed for full *** articles were *** studies implement techniques including artificial neural networks,Bayesian networks and decision *** articles reported the overall model ***,the median AUC is 0.8243[interquartile range(IQR):0.8050-0.8886].In the two articles that reported comparison results with traditional models,the data mining method performed better than the traditional models,with the best AUC improvement of 10.7%.Conclusions:The adoption of data mining technologies for CRC detection is at an early *** numbers of included articles and heterogeneity of those studies implied that more rigorous research is expected to further investigate the techniques’effects.

关键词： Systematic review colorectal cancer disease detection data mining

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The public-private partnerships in healthcare sector in China

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Chronic Diseases and Translational Medicine 2023年第4期9卷 288-298页

作者： Bo Liu leiyu shi Hanyi Min Hailun Liang Jiahong Dong Department of Health Policy and Management Bloomberg School of Public HealthJohns Hopkins UniversityBaltimoreUSA Department of Ophthalmology Peking Union Medical College HospitalChinese Academy of Medical Science&Peking Union Medical CollegeBeijingChina Institute of Social Security School of Public Administration and PolicyRenmin UniversityBeijingChina Department of Hepatobiliary Surgery Beijing Tsinghua Changgung HospitalSchool of Clinical MedicineInstitute of Precision MedicineInstitute of Intelligent MedicineTsinghua UniversityBeijingChina

This manuscript is a narrative review on experience in the healthcare public-private partnerships(PPP)field project in *** PPP model allows healthcare officials to share the risk of building new facilities with the private *** objective of this study is to evaluate and to review the PPP of healthcare sector in China,and to investigate the critical success factors and best practice of *** adapted the PPP evaluation framework of the World Bank Independent Evaluation Group as our conceptual framework to summarize the *** current study systematically reviewed the evolution and current status of public and private hospitals development in China,and to investigate factors related to the successful and less successful deployment and performance of PPP in the healthcare sector of China,and to develop best practice models of PPP among hospitals of *** found that the PPP organizations providing finance and political risk coverage,thus enabling specific PPP transactions to reach financial closure-potentially setting demonstration *** PPPs may then contribute to improving access to infrastructure and social services,which drives economic growth and other optimal outcomes.

关键词： China healthcare sector public-private partnerships

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基于卷积神经网络的无人船海面垃圾分类算法

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船舶工程 2021年第S1期43卷 399-404页

作者：刘婷周柏均赵永生时雷雨大连海事大学船舶电气工程学院辽宁大连116026

为了准确对海面垃圾进行分类识别,从而降低无人水面艇海面垃圾分类回收工作的难度,提出一种利用Keras深度学习框架来进行海面垃圾分类的算法。以Inception-Resnet-v2为训练网络,对4种海面垃圾进行分类识别,并与VGG-16网络模型做对比,结... 详细信息

为了准确对海面垃圾进行分类识别,从而降低无人水面艇海面垃圾分类回收工作的难度,提出一种利用Keras深度学习框架来进行海面垃圾分类的算法。以Inception-Resnet-v2为训练网络,对4种海面垃圾进行分类识别,并与VGG-16网络模型做对比,结果显示,文章中训练的网络模型正确识别率达到93%,比VGG-16网络的准确率高出17%。充分证明文章中所研究的算法可应用于无人水面艇海面垃圾分类问题。

关键词：无人船海面垃圾分类图像处理卷积神经网络 Keras框架 Inception-Resnet-v2

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Prediction and optimization of flue pressure in sintering process based on SHAP

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 346-359页

作者： Mingyu Wang Jue Tang Mansheng Chu Quan shi Zhen Zhang School of Metallurgy Northeastern UniversityShenyang 110819China Liaoning Low-Carbon Steelmaking Technology Engineering Research Center Northeastern UniversityShenyang 110819China Engineering Research Center of Frontier Technologies for Low-Carbon Steelmaking(Ministry of Education) Shenyang 110819China

Sinter is the core raw material for blast *** pressure,which is an important state parameter,affects sinter *** this paper,flue pressure prediction and optimization were studied based on the shapley additive explanation(SHAP)to predict the flue pressure and take targeted adjustment ***,the sintering process data were collected and processed.A flue pressure prediction model was then constructed after comparing different feature selection methods and model algorithms using SHAP+extremely random-ized trees(ET).The prediction accuracy of the model within the error range of±0.25 kPa was 92.63%.SHAP analysis was employed to improve the interpretability of the prediction *** effects of various sintering operation parameters on flue pressure,the relation-ship between the numerical range of key operation parameters and flue pressure,the effect of operation parameter combinations on flue pressure,and the prediction process of the flue pressure prediction model on a single sample were analyzed.A flue pressure optimization module was also constructed and analyzed when the prediction satisfied the judgment *** operating parameter combination was then *** flue pressure was increased by 5.87%during the verification process,achieving a good optimization effect.

关键词： sintering process flue pressure shapley additive explanation prediction optimization

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用模糊聚类分析法与指数加权累加法比较评价农村生态系统

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环境污染与防治 1988年第5期 2-6页

作者：谢先德尹其方林雷余施守愚浙江省环境保护科学研究所

本文用模糊聚类分析法和指数加权累加法对同一农村生态系统进行比较评价。评价对象为浙江省萧山市山一村。根据该村生态系统的结构、功能与特征,选出50个参数构成评价指标体系。两种方法的评价结果均符合该村生态系统实况。

关键词：模糊聚类分析累加法权重值农村生态系统指数值函数曲线山一村评价单元指数加权

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The pivotal role of microglia in injury and the prognosis of subarachnoid hemorrhage

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Neural Regeneration Research 2025年第7期20卷 1829-1848页

作者： Wenjing Ning shi Lv Qian Wang Yuzhen Xu Department of Rehabilitation The Second Affiliated Hospital of Shandong First Medical UniversityTaianShandong ProvinceChina Department of Central Laboratory The Affiliated Taian City Central Hospital of Qingdao UniversityTaianShandong ProvinceChina

Subarachnoid hemorrhage leads to a series of pathological changes,including vascular spasm,cellular apoptosis,blood–brain barrier damage,cerebral edema,and white matter ***,which are the key immune cells in the central nervous system,maintain homeostasis in the neural environment,support neurons,mediate apoptosis,participate in immune regulation,and have neuroprotective *** evidence has shown that microglia play a pivotal role in the pathogenesis of subarachnoid hemorrhage and affect the process of injury and the prognosis of subarachnoid ***,microglia play certain neuroprotective roles in the recovery phase of subarachnoid *** approaches aimed at modulating microglia function are believed to attenuate subarachnoid hemorrhage *** provides new targets and ideas for the treatment of subarachnoid ***,an in-depth and comprehensive summary of the role of microglia after subarachnoid hemorrhage is still *** review describes the activation of microglia after subarachnoid hemorrhage and their roles in the pathological processes of vasospasm,neuroinflammation,neuronal apoptosis,blood–brain barrier disruption,cerebral edema,and cerebral white matter *** also discusses the neuroprotective roles of microglia during recovery from subarachnoid hemorrhage and therapeutic advances aimed at modulating microglial function after subarachnoid ***,microglia in subarachnoid hemorrhage are targeted with TLR inhibitors,nuclear factor-κB and STAT3 pathway inhibitors,glycine/tyrosine kinases,NLRP3 signaling pathway inhibitors,Gasdermin D inhibitors,vincristine receptorαreceptor agonists,ferroptosis inhibitors,genetic modification techniques,stem cell therapies,and traditional Chinese ***,most of these are still being evaluated at the laboratory *** clinical studies and data on subarachnoid hemorrhage are required to improve the treatment of subarachnoid hemor

关键词： apoptosis blood–brain barrier brain edema microglia neuroinflammation neuron neuroprotection subarachnoid hemorrhage vasoconstriction white matter injury

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Experimental study on the sandstone abrasiveness via mineral composition and microstructure analysis

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Petroleum 2024年第3期10卷 440-445页

作者： Xiangchao shi Yang Tang Shuai Chen leiyu Gao Yuming Wang State Key Lab of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu610500China

Rock abrasiveness is an important factor affecting the tool's lifetime and efficiency in breaking a *** rock abrasiveness helps in the design,optimization,and mean-life prediction of *** diffraction,cast thin section analysis,and CERCHAR abrasiveness tests were performed on 18 different sandstones to characterize rock abrasiveness and explore new methods for *** relationship between the mineral composition and microstructure of sandstone and abrasiveness was *** results show that different structural maturities have varying effects on *** addition,the higher the structural maturity,the more the ***,in sandstones of the same structural maturity,the abrasiveness increases with equivalent quartz content(EQC).The texture coefficient(TC)and CERCHAR abrasiveness index(CAI)of sandstones with the same structural maturity showed a good linear ***,the correlation coefficients considering the combined parameters are above ***,obtaining the microstructure and mineral composition of sandstone can effectively characterize rock *** also provides a new method for predicting the abrasiveness of the rock in the well.

关键词： Abrasiveness Microstructure Mineral compositions Structural maturity Equivalent quartz content Sandstone

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Low-temperature chlorination roasting technology for the simultaneous recovery of valuable metals from spent LiCoO_(2)cathode material

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 80-91页

作者： Junjie shi Changle Hou Jingjing Dong Dong Chen Jianzhong Li Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education) Northeastern UniversityShenyang 110819China School of Metallurgy Northeastern UniversityShenyang 110819China

With the continuous increase in the disposal volume of spent lithium-ion batteries(LIBs),properly recycling spent LIBs has become essential for the advancement of the circular *** study presents a systematic analysis of the chlorination roasting kinetics and proposes a new two-step chlorination roasting process that integrates thermodynamics for the recycling of LIB cathode *** activation energy for the chloride reaction was 88.41 kJ/mol according to thermogravimetric analysis–derivative thermogravimetry data obtained by using model-free,model-fitting,and Z(α)function(αis conversion rate).Results indicated that the reaction was dominated by the first-order(F1)model when the conversion rate was less than or equal to 0.5 and shifted to the second-order(F2)model when the conversion rate exceeded *** conditions were determined by thoroughly investigating the effects of roasting temperature,roasting time,and the mass ratio of NH_(4)Cl to LiCoO_(2).Under the optimal conditions,namely 400℃,20 min,and NH_(4)Cl/LiCoO_(2)mass ratio of 3:1,the leaching efficiency of Li and Co reached 99.43% and 99.05%,*** of the roasted products revealed that valuable metals in LiCoO_(2)transformed into CoCl_(2) and ***,the reaction mechanism was elucidated,providing insights for the establishment of a novel low-temperature chlorination roasting technology based on a crystal structure *** technology can guide the development of LIB recycling processes with low energy consumption,low secondary pollution,high recovery efficiency,and high added value.

关键词： spent lithium-ion battery thermodynamics chlorination roasting kinetics circular economy

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Flexible molecules dedicate to release strain of inverted inorganic perovskite solar cell

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Journal of Energy Chemistry 2025年第1期100卷 87-93页

作者： Hongrui Sun Sanlong Wang Pengyang Wang Yali Liu Shanshan Qi Biao shi Ying Zhao Xiaodan Zhang Institute of Photoelectronic Thin Film Devices and Technology Renewable Energy Conversion and Storage Center State Key Laboratory of Photovoltaic Materials and CellsNankai University Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin Haihe Laboratory of Sustainable Chemical Transformations Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)

The tensile strain in inorganic perovskite films induced by thermal annealing is one of the primary factors contributing to the inefficiency and instability of inorganic perovskite solar cells （IPSCs）,which reduces the defect formation ***,a flexible molecule 5-maleimidovaleric acid （5-MVA） was introduced as a strain buffer to release the residual strain of *** anhydride and carboxyl groups in 5-MVA interact strongly with the uncoordinated Pb2+through Lewis acid-base reaction,thus tightly“pull”the perovskite *** in-between soft carbon chain increased the structural flexibility of CsPbI2.85Br0.15perovskite materials,which effectively relieved the intrinsic internal strain of CsPbI2.85Br0.15,resisted the corrosion of external strain,and also reduced the formation of defects such as VIand *** addition,the introduction of 5-MVA improved crystal quality,passivated residual defects,and narrowed energy level ***,power conversion efficiency （PCE） of NiOxbased inverted IPSCs increased from 19.25% to 20.82% with the open-circuit voltage enhanced from 1.164 V to 1.230 *** release of strain also improved the stability of CsPbI2.85Br0.15perovskite films and devices.

关键词： Inverted inorganic perovskite solar cells Flexible molecules Strain release Crystallization Energy barrier High PCE

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