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China Top Oil Importer Status Overrated
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作者 Zhao Huiping 《China Oil & Gas》 CAS 2013年第4期50-52,共3页
Media reports of China surpassing the United States as the world’s biggest oil importer as shown by data from a U.S.government agency were somewhat overrated.Recently published data by the U.S.Energy Information Admi... Media reports of China surpassing the United States as the world’s biggest oil importer as shown by data from a U.S.government agency were somewhat overrated.Recently published data by the U.S.Energy Information Administration(EIA)showed that net imports of the United States and China stood at 6.24 million and 6.3million barrels per day in September of 2013,respectively.The EIA further forecast that China will start overtaking the United States by October 2013 on a monthly basis and by 2014 on an annual basis in terms of net oil imports. 展开更多
关键词 over THAN China Top Oil importer Status Overrated EIA NET
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Importers Drive Leaf-to-Leaf Jasmonic Acid Transmission in Wound-Induced Systemic Immunity 被引量:3
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作者 Mengya Li Feifei Wang +7 位作者 Shuangzhang Li Guanghui Yu Lijian Wang Qingqing Li Xiangyu Zhu Zhen Li Lixing Yuan Pei Liu 《Molecular Plant》 SCIE CAS CSCD 2020年第10期1485-1498,共14页
The transmission of mobile wound signals along the phloem pathway is essential to the activation of wound-induced systemic response/resistance,which requires an upsurge of jasmonic acid(JA)in the distal undamaged leav... The transmission of mobile wound signals along the phloem pathway is essential to the activation of wound-induced systemic response/resistance,which requires an upsurge of jasmonic acid(JA)in the distal undamaged leaves.Among these mobile signals,the electrical signal mediated by the glutamate-dependent activation of several clade three GLUTAMATE RECEPTOR-LIKE(GLR3)proteins is involved in the stimulation of JA production in distal leaves.However,whether JA acts as a mobile wound signal and,if so,how it is transmitted and interacts with the electrical signal remain unclear.Here,we show that JA was translocated from the local to distal leaves in Arabidopsis,and this process was predominantly regulated by two phloem-expressed and plasma membrane-localized jasmonate transporters,AtJAT3 and AtJAT4.In addition to the cooperation between AtJAT3/4 and GLR3.3 in the regulation of long-distance JA translocation,our findings indicate that importer-mediated cell-cell JA transport is important for driving the loading and translocation of JA in the phloem pathway in a self-propagating manner. 展开更多
关键词 wound-induced SYSTEMIC resistance jasmonate importerS mobile signals phloem loading long-distance TRANSMISSION self-propagation mode
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New Hub for Regional Economic and Trade Cooperation Island-wide special customs operations at Hainan Free Trade Port have accelerated China's connectivity with ASEAN and beyond
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作者 Li Jiaqi 《China Report ASEAN》 2026年第3期32-33,共2页
Since the launch of island-wide special customs operations at Hainan Free Trade Port(Hainan FTP),the proportion of “zero-tariff”imported goods has increased significantly from 21 to 74 percent, and high-quality good... Since the launch of island-wide special customs operations at Hainan Free Trade Port(Hainan FTP),the proportion of “zero-tariff”imported goods has increased significantly from 21 to 74 percent, and high-quality goods from Southeast Asia can enter Hainan at a more competitive price. If goods contain imported materials and achieve at least 30 percent added value through local processing,they can enter the Chinese mainland market with an exemption from import tariffs, effectively gaining market access across China. 展开更多
关键词 local processingthey imported materials import tariffs ASEAN gaining market access across Regional Economic Cooperation Hainan Free Trade Port Zero Tariff Imports
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Metagenomic-based rapid identification and phylogenomic tracing of an imported melioidosis case in Beijing,China
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作者 Zhichao Liang Fuyu Qiao +1 位作者 Xin Zhang Bing Lv 《Asian Pacific Journal of Tropical Medicine》 2026年第2期91-93,共3页
Melioidosis is a zoonotic infectious disease caused by Burkholderia(B.)pseudomallei.It is predominantly endemic in Southeast Asia[1-3].Clinical manifestations are often non-specific,commonly presenting as pneumonia or... Melioidosis is a zoonotic infectious disease caused by Burkholderia(B.)pseudomallei.It is predominantly endemic in Southeast Asia[1-3].Clinical manifestations are often non-specific,commonly presenting as pneumonia or skin abscesses[4],and may progress to severe sepsis with a high case-fatality rate of 10%-50%[5].Due to its early flu-like symptoms,melioidosis is frequently misdiagnosed by clinicians in non-endemic regions.Beijing,located in the North Temperate Zone,rarely reports melioidosis cases;the lack of awareness among healthcare professionals may lead to misdiagnosis and fatal outcomes. 展开更多
关键词 zoonotic infectious disease imported case phylogenomic severe sepsis METAGENOMIC China MELIOIDOSIS BEIJING
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Criticality,resilience and prioritization of components in interdependent infrastructure systems:An overview of definitions and quantitative modelling approaches
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作者 Georgios Alexandros Chatzistefanou Albert S.Chen +2 位作者 Slobodan Djordjevic Lydia S.Vamvakeridou-Lyroudia Dragan A.Savic 《Resilient Cities and Structures》 2026年第1期118-132,共15页
Enhancing the resilience of critical infrastructure(CI)systems has become a focal point of national and inter-national policies.However,the formulation of resilience enhancement strategies often requires component-(i.... Enhancing the resilience of critical infrastructure(CI)systems has become a focal point of national and inter-national policies.However,the formulation of resilience enhancement strategies often requires component-(i.e.asset-)level prioritization,which entails many complexities.Acknowledging the complex and interdependent nature of infrastructure systems,this paper aims to aid researchers,practitioners and policy-makers by pre-senting a review of the relative literature and current state-of-the-art,and by identifying future research op-portunities to improve the applicability and operationalizability of CI component identification and prioritization methods.Theoretical and practical applications are reviewed for definitions,analysis and modelling approaches regarding the resilience of interdependent infrastructure systems.A detailed review of infrastructure criticality definitions,component criticality assessment and prioritization frameworks,from scientific,policy and other documents,is presented.A discussion on social justice and equity dimensions therein is included,which have the potential to greatly influence decisions and should always be incorporated in infrastructure planning and in-vestment discussions.The findings of this review are discussed in terms of applicability and operationalizability.Key recommendations for future research include:(i)developing quantification frameworks for CI component criticality based on formal definitions and multiple criteria,(ii)incorporating the entire resilience cycle of CI in component prioritization,(iii)accounting for the socio-technical nature of CI systems by integrating social di-mensions and their wider operating environment and(iv)developing comprehensive model validation,cali-bration and uncertainty analysis frameworks. 展开更多
关键词 Critical infrastructure Interdependencies CRITICALITY RESILIENCE Component importance measures Cascading effects System-of-systems
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India announces resumption of cotton import tariffs
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作者 Zhong Mengxia 《China Textile》 2026年第1期21-21,共1页
India’s temporary duty-free window for cotton imports has officially closed,with the government reinstating an 11%import tariff effective January 1,2026.The tax exemption,which expired on December 31,2025 without ext... India’s temporary duty-free window for cotton imports has officially closed,with the government reinstating an 11%import tariff effective January 1,2026.The tax exemption,which expired on December 31,2025 without extension,marks a return to the previous tariff framework-a policy shift expected to raise costs for the domestic textile industry and potentially trigger ripple effects across global cotton trade. 展开更多
关键词 global cotton trade textile industry COTTON import tariffs
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Hybrid Pythagorean Fuzzy Decision-Making Framework for Sustainable Urban Planning under Uncertainty
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作者 Sana Shahab Vladimir Simic +2 位作者 Ashit Kumar Dutta Mohd Anjum Dragan Pamucar 《Computer Modeling in Engineering & Sciences》 2026年第1期892-925,共34页
Environmental problems are intensifying due to the rapid growth of the population,industry,and urban infrastructure.This expansion has resulted in increased air and water pollution,intensified urban heat island effect... Environmental problems are intensifying due to the rapid growth of the population,industry,and urban infrastructure.This expansion has resulted in increased air and water pollution,intensified urban heat island effects,and greater runoff from parks and other green spaces.Addressing these challenges requires prioritizing green infrastructure and other sustainable urban development strategies.This study introduces a novel Integrated Decision Support System that combines Pythagorean Fuzzy Sets with the Advanced Alternative Ranking Order Method allowing for Two-Step Normalization(AAROM-TN),enhanced by a dual weighting strategy.The weighting approach integrates the Criteria Importance Through Intercriteria Correlation(CRITIC)method with the Criteria Importance through Means and Standard Deviation(CIMAS)technique.The originality of the proposed framework lies in its ability to objectively quantify criteria importance using CRITIC,incorporate decision-makers’preferences through CIMAS,and capture the uncertainty and hesitation inherent in human judgment via Pythagorean Fuzzy Sets.A case study evaluating green infrastructure alternatives in metropolitan regions demonstrates the applicability and effectiveness of the framework.A sensitivity analysis is conducted to examine how variations in criteria weights affect the rankings and to evaluate the robustness of the results.Furthermore,a comparative analysis highlights the practical and financial implications of each alternative by assessing their respective strengths and weaknesses. 展开更多
关键词 Sustainable urban planning criterion importance assessment two-step normalization environmental impact decision-making
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Seasonal waterbird utilization highlights wetland conservation significance in the Yellow River Basin and its role in the Central Asian Flyway
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作者 XIA Shaoxia WANG Chunxiao +2 位作者 YU Xiubo ZHANG Zhengwang SHI Jianbin 《Journal of Geographical Sciences》 2026年第1期219-235,共17页
Effective conservation relies on robust assessments;however,the lack of waterbird data in the Yellow River Basin(YRB)has led to an underestimation of key habitat significance.This study addressed this gap by evaluatin... Effective conservation relies on robust assessments;however,the lack of waterbird data in the Yellow River Basin(YRB)has led to an underestimation of key habitat significance.This study addressed this gap by evaluating YRB wetland conservation importance using waterbirds as indicators and applying Ramsar,Important Bird Areas(IBA),and East Asian-Australasian Flyway(EAAF)criteria.We integrated coordinated surveys with citizen science data,creating a framework that tackles data deficiencies along the under-monitored Central Asian Flyway(CAF).Our analysis identified 75 priority wetlands,supporting 15 threatened species and 49 exceeding global/flyway 1%thresholds,highlighting the basin's biodiversity.We observed strong seasonal habitat use,with high-altitude wetlands vital for breeding and migration,and the Yellow River Delta providing year-round refuge.This research also provided data to refine Baer's Pochard population estimates.Alarmingly,one-third of the identified priority areas,primarily rivers and lakes,remain unprotected.To address this,we recommend systematic surveys,enhanced protected areas,OECMs,and targeted wetland restoration.This study underscores the YRB's role in regional conservation and provides essential data for adaptive management,particularly emphasizing the CAF's importance. 展开更多
关键词 wetland conservation importance WATERBIRDS seasonal pattern Yellow River Basin
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Layered Feature Engineering for E-Commerce Purchase Prediction:A Hierarchical Evaluation on Taobao User Behavior Datasets
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作者 Liqiu Suo Lin Xia +1 位作者 Yoona Chung Eunchan Kim 《Computers, Materials & Continua》 2026年第4期1865-1889,共25页
Accurate purchase prediction in e-commerce critically depends on the quality of behavioral features.This paper proposes a layered and interpretable feature engineering framework that organizes user signals into three ... Accurate purchase prediction in e-commerce critically depends on the quality of behavioral features.This paper proposes a layered and interpretable feature engineering framework that organizes user signals into three layers:Basic,Conversion&Stability(efficiency and volatility across actions),and Advanced Interactions&Activity(crossbehavior synergies and intensity).Using real Taobao(Alibaba’s primary e-commerce platform)logs(57,976 records for 10,203 users;25 November–03 December 2017),we conducted a hierarchical,layer-wise evaluation that holds data splits and hyperparameters fixed while varying only the feature set to quantify each layer’s marginal contribution.Across logistic regression(LR),decision tree,random forest,XGBoost,and CatBoost models with stratified 5-fold cross-validation,the performance improvedmonotonically fromBasic to Conversion&Stability to Advanced features.With LR,F1 increased from 0.613(Basic)to 0.962(Advanced);boosted models achieved high discrimination(0.995 AUC Score)and an F1 score up to 0.983.Calibration and precision–recall analyses indicated strong ranking quality and acknowledged potential dataset and period biases given the short(9-day)window.By making feature contributions measurable and reproducible,the framework complements model-centric advances and offers a transparent blueprint for production-grade behavioralmodeling.The code and processed artifacts are publicly available,and future work will extend the validation to longer,seasonal datasets and hybrid approaches that combine automated feature learning with domain-driven design. 展开更多
关键词 Hierarchical feature engineering purchase prediction user behavior dataset feature importance e-commerce platform TAOBAO
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Integrated Predictive Nursing Care for a Case of Imported Severe Malignant Malaria with Spontaneous Splenic Rupture
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作者 Na Bai Jing Wu +1 位作者 Lili Tian Wenting Li 《Journal of Clinical and Nursing Research》 2026年第1期181-192,共12页
A case of imported severe falciparum malaria with spontaneous splenic rupture was reported in this paper.The patient,an African migrant worker,developed hemolytic anemia,sepsis,thrombocytopenia,coagulation dysfunction... A case of imported severe falciparum malaria with spontaneous splenic rupture was reported in this paper.The patient,an African migrant worker,developed hemolytic anemia,sepsis,thrombocytopenia,coagulation dysfunction,liver failure,renal insufficiency,electrolyte disturbance and other clinical manifestations after returning to the local area.Plasmodium falciparum was found by peripheral blood smearscopy and was diagnosed as severe falciparum malaria.After standardized anti-malaria treatment,plasma exchange+cytokine adsorption therapy,the establishment of“forewarning-forewarning-prevention-emergency”predictive nursing management model,the establishment of an integrated nursing team,the division of medical care is clear,professional knowledge is complementary,after three months of regular follow-up,the patient has no malaria recurrence,no refire,the function of all organs returned to normal. 展开更多
关键词 Severe falciparum malaria Imported malaria Splenorrhagia Integration of health care Predictive care Plasma exchange Cytokine adsorption
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Multi-objective spatial optimization by considering land use suitability in the Yangtze River Delta region
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作者 CHENG Qianwen LI Manchun +4 位作者 LI Feixue LIN Yukun DING Chenyin XIAO Lishan LI Weiyue 《Journal of Geographical Sciences》 2026年第1期45-78,共34页
Rapid urbanization in China has led to spatial antagonism between urban development and farmland protection and ecological security maintenance.Multi-objective spatial collaborative optimization is a powerful method f... Rapid urbanization in China has led to spatial antagonism between urban development and farmland protection and ecological security maintenance.Multi-objective spatial collaborative optimization is a powerful method for achieving sustainable regional development.Previous studies on multi-objective spatial optimization do not involve spatial corrections to simulation results based on the natural endowment of space resources.This study proposes an Ecological Security-Food Security-Urban Sustainable Development(ES-FS-USD)spatial optimization framework.This framework combines the non-dominated sorting genetic algorithm II(NSGA-II)and patch-generating land use simulation(PLUS)model with an ecological protection importance evaluation,comprehensive agricultural productivity evaluation,and urban sustainable development potential assessment and optimizes the territorial space in the Yangtze River Delta(YRD)region in 2035.The proposed sustainable development(SD)scenario can effectively reduce the destruction of landscape patterns of various land-use types while considering both ecological and economic benefits.The simulation results were further revised by evaluating the land-use suitability of the YRD region.According to the revised spatial pattern for the YRD in 2035,the farmland area accounts for 43.59%of the total YRD,which is 5.35%less than that in 2010.Forest,grassland,and water area account for 40.46%of the total YRD—an increase of 1.42%compared with the case in 2010.Construction land accounts for 14.72%of the total YRD—an increase of 2.77%compared with the case in 2010.The ES-FS-USD spatial optimization framework ensures that spatial optimization outcomes are aligned with the natural endowments of land resources,thereby promoting the sustainable use of land resources,improving the ability of spatial management,and providing valuable insights for decision makers. 展开更多
关键词 multi-objective spatial optimization multi-scenario simulation ecological protection importance comprehensive agricultural productivity urban sustainable development land-use suitability
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An explainable deep learning approach to enhance the prediction of shield tunnel deviation
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作者 Jiajie Zhen Fengwen Lai +4 位作者 Ming Huang Junjie Zheng Jim S.Shiau Ping Wang Jinhuo Zheng 《Journal of Rock Mechanics and Geotechnical Engineering》 2026年第1期566-579,共14页
Although machine learning models have achieved high enough accuracy in predicting shield position deviations,their“black box”nature makes the prediction mechanisms and decision-making processes opaque,leading to wea... Although machine learning models have achieved high enough accuracy in predicting shield position deviations,their“black box”nature makes the prediction mechanisms and decision-making processes opaque,leading to weaker explanations and practicability.This study introduces a novel explainable deep learning framework comprising the Informer model with enhanced attention mechanisms(EAMInfor)and deep learning important features(DeepLIFT),aimed at improving the prediction accuracy of shield position deviations and providing interpretability for predictive results.The EAMInfor model attempts to integrate channel attention,spatial attention,and simple attention modules to improve the Informer model's performance.The framework is tested with the four different geological conditions datasets generated from the Xiamen metro line 3,China.Results show that the EAMInfor model outperforms the traditional Informer and comparison models.The analysis with the DeepLIFT method indicates that the push thrust of push cylinder and the earth chamber pressure are the most significant features,while the stroke length of the push cylinder demonstrated lower importance.Furthermore,the variation trends in the significance of data points within input sequences exhibit substantial differences between single and composite strata.This framework not only improves predictive accuracy but also strengthens the credibility and reliability of the results. 展开更多
关键词 Shield tunnel position deviation Machine learning Explainable AI Deep learning important features
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Stress signaling caused by mitochondrial import malfunction can be terminated by SIFI:Importance of stress response silencing
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作者 Grace Hohman Michael Shahid Mohamed A.Eldeeb 《Neural Regeneration Research》 2026年第2期673-674,共2页
Protein aggregates,mitochondrial import stress and neurodegenerative disorders:A salient hallmark of several neurodegenerative diseases,including Parkinson’s disease,is the abundance of protein aggregates(Goiran et a... Protein aggregates,mitochondrial import stress and neurodegenerative disorders:A salient hallmark of several neurodegenerative diseases,including Parkinson’s disease,is the abundance of protein aggregates(Goiran et al.,2022).This molecular event is believed to lead to activation of stress pathways ultimately resulting in cellular dysfunction(Eldeeb et al.,2022).Accordingly,many lines of research investigations focused on dampening the formation of protein aggregates or augmenting the clearance of protein aggregates as a potential therapeutic strategy to counteract the progression of neurodegenerative diseases,albeit with little success(Costa-Mattioli and Walter,2020).Cell stress cues such as the accumulation of protein aggregates lead to the activation of stress response pathways that aid cells in responding to the damage.Despite the notion that the transient activation of these pathways helps cells cope with stressors,persistent activation can induce unwanted apoptosis of cells and reduce overall tissue strength as well as lead to an accumulation of aggregation-prone proteins(Hetz and Papa,2018).Mutations in proteins involved in stress signaling termination can cause conditions like ataxia and early-onset dementia(Conroy et al.,2014).Therefore,it is crucial for stress response signaling to be turned off once conditions have improved.Nevertheless,the mechanisms by which cells silence these signals are still elusive. 展开更多
关键词 activation stress pathways neurodegenerative disorders protein aggregatesmitochondrial import stress stress signaling protein aggregates goiran protein aggregates protein aggr neurodegenerative diseasesincluding
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Adhering to our original aspiration,forging ahead with determination-Editor in Chief's new year address
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作者 Chuan Qin 《Animal Models and Experimental Medicine》 2026年第1期3-4,I0002,共3页
On the occasion of the New Year,I would like to extend my sincere gratitude and New Year greetings to the experts,scholars,author teams,and readers who have long supported the development of Animal Models and Experime... On the occasion of the New Year,I would like to extend my sincere gratitude and New Year greetings to the experts,scholars,author teams,and readers who have long supported the development of Animal Models and Experimental Medicine(AMEM).Over the past year,we have faced challenges together and achieved breakthroughs in academic influence,internationalization,and fulfilling social respon-sibilities.Looking ahead,we are filled with confidence as we strive to build an important bridge connecting laboratory animal science and technology with academic research. 展开更多
关键词 build important bridge connecting laboratory animal editor chief experts GRATITUDE forging ahead animal models experimental medicine amem original aspiration new year address
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Naphtha Importers Can Enjoy Returned Tax
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《China Chemical Reporter》 2009年第24期5-5,共6页
Recently the Ministry of Finance, the General Administration of Cus-toms and the State Administration of Taxation of China jointly issueda policy that the domestic enterprises who import naphtha, after theimported nap... Recently the Ministry of Finance, the General Administration of Cus-toms and the State Administration of Taxation of China jointly issueda policy that the domestic enterprises who import naphtha, after theimported naphtha has been processed into ethylene, propylene, 展开更多
关键词 NAPHTHA PROPYLENE jointly processed IMPORT butadie
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基于Null Importance分析慢病人群接受居家药学服务意愿的影响因素
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作者 赵科 杨宏昕 +2 位作者 武明芬 郭浩 赵志刚 《医药导报》 北大核心 2025年第8期1347-1351,共5页
目的探究慢病人群接受居家药学服务意愿的关键影响因素。方法采用中国适老化研究项目中内蒙古自治区及东北地区的调查数据,基于Null Importance方法,筛选影响慢病人群参与居家药学服务意愿的关键因素。构建logistic回归模型,采用5折交... 目的探究慢病人群接受居家药学服务意愿的关键影响因素。方法采用中国适老化研究项目中内蒙古自治区及东北地区的调查数据,基于Null Importance方法,筛选影响慢病人群参与居家药学服务意愿的关键因素。构建logistic回归模型,采用5折交叉验证方法,以准确率及AUC为指标,评价特征选择对模型性能的影响。结果Null Importance方法筛选出10个关键因素,且特征选择后logistic回归模型性能得到提升。显著影响患者对居家药学服务接受意愿的因素包括:获取药品信息途径个数(OR=1.261,95%CI=1.182~1.345),药物适应证认知(OR=1.342,95%CI=1.124~1.603),是否保留药盒(OR=1.218,95%CI=1.015~1.462),用药依从性得分(OR=0.881,95%CI=0.839~0.925),用药素养得分(OR=0.631,95%CI=0.488~0.817),用药指导服务了解程度(OR=1.211,95%CI=1.017~1.442)。结论在Null Importance特征选择方法基础上构建的logistic回归模型,具有良好的性能,有助于慢病人群接受居家药学服务意愿影响因素的分析。 展开更多
关键词 Null Importance 居家药学服务 意愿 慢病
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Variations in quantifying patient reported outcome measures to estimate treatment effect 被引量:1
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作者 Sathish Muthu Srujun Vadranapu 《World Journal of Methodology》 2025年第2期44-53,共10页
In the practice of healthcare,patient-reported outcomes(PROs)and PRO measures(PROMs)are used as an attempt to observe the changes in complex clinical situations.They guide us in making decisions based on the evidence ... In the practice of healthcare,patient-reported outcomes(PROs)and PRO measures(PROMs)are used as an attempt to observe the changes in complex clinical situations.They guide us in making decisions based on the evidence regarding patient care by recording the change in outcomes for a particular treatment to a given condition and finally to understand whether a patient will benefit from a particular treatment and to quantify the treatment effect.For any PROM to be usable in health care,we need it to be reliable,encapsulating the points of interest with the potential to detect any real change.Using structured outcome measures routinely in clinical practice helps the physician to understand the functional limitation of a patient that would otherwise not be clear in an office interview,and this allows the physician and patient to have a meaningful conver-sation as well as a customized plan for each patient.Having mentioned the rationale and the benefits of PROMs,understanding the quantification process is crucial before embarking on management decisions.A better interpretation of change needs to identify the treatment effect based on clinical relevance for a given condition.There are a multiple set of measurement indices to serve this effect and most of them are used interchangeably without clear demarcation on their differences.This article details the various quantification metrics used to evaluate the treatment effect using PROMs,their limitations and the scope of usage and implementation in clinical practice. 展开更多
关键词 Patient-reported outcome measures Treatment effect Minimal clinical important difference Patient-accepted symptom state Minimum detectable change ORTHOPEDICS
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Laboratory Diagnosis and Molecular Epidemiological Characterization of the First Imported Case of Lassa Fever in China 被引量:2
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作者 Yuliang Feng Wei Li +11 位作者 Mingfeng Jiang Hongrong Zhong Wei Wu Lyubo Tian Guo Chen Zhenhua Chen Can Luo Rongmei Yuan Xingyu Zhou Jiandong Li Xiaorong Yang Ming Pan 《Biomedical and Environmental Sciences》 2025年第3期279-289,共11页
Objective This study reports the first imported case of Lassa fever(LF)in China.Laboratory detection and molecular epidemiological analysis of the Lassa virus(LASV)from this case offer valuable insights for the preven... Objective This study reports the first imported case of Lassa fever(LF)in China.Laboratory detection and molecular epidemiological analysis of the Lassa virus(LASV)from this case offer valuable insights for the prevention and control of LF.Methods Samples of cerebrospinal fluid(CSF),blood,urine,saliva,and environmental materials were collected from the patient and their close contacts for LASV nucleotide detection.Whole-genome sequencing was performed on positive samples to analyze the genetic characteristics of the virus.Results LASV was detected in the patient’s CSF,blood,and urine,while all samples from close contacts and the environment tested negative.The virus belongs to the lineage IV strain and shares the highest homology with strains from Sierra Leone.The variability in the glycoprotein complex(GPC)among different strains ranged from 3.9%to 15.1%,higher than previously reported for the seven known lineages.Amino acid mutation analysis revealed multiple mutations within the GPC immunogenic epitopes,increasing strain diversity and potentially impacting immune response.Conclusion The case was confirmed through nucleotide detection,with no evidence of secondary transmission or viral spread.The LASV strain identified belongs to lineage IV,with broader GPC variability than previously reported.Mutations in the immune-related sites of GPC may affect immune responses,necessitating heightened vigilance regarding the virus. 展开更多
关键词 Lassa fever The first imported case Laboratory diagnosis Epidemiological characterization
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Digital twin-based resilience evaluation and intelligent strategies of smart urban water distribution networks for emergency management 被引量:2
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作者 Hongyan Dui Taiyu Cao Fan Wang 《Resilient Cities and Structures》 2025年第1期41-52,共12页
Resilient smart urban water distribution networks are essential to ensure smooth urban operation and maintain daily water services.However,the dynamics and complexity of smart water distribution networks make its re-s... Resilient smart urban water distribution networks are essential to ensure smooth urban operation and maintain daily water services.However,the dynamics and complexity of smart water distribution networks make its re-silience study face many challenges.The introduction of digital twin technology provides an innovative solution for the resilience study of smart water distribution networks,which can more effectively support the network’s real-time monitoring and intelligent control.This paper proposes a digital twin architecture of smart water dis-tribution networks,laying the foundation for the resilience assessment of water distribution networks.Based on this,a performance evaluation model based on user satisfaction is proposed,which can more intuitively and effectively reflect the performance of urban water supply services.Meanwhile,we propose a method to quantify the importance of water distribution pipes’residual resilience,considering the time value to optimize the re-covery sequence of failed pipes and develop targeted preventive maintenance strategies.Finally,to validate the effectiveness of the proposed method,this paper applies it to a water distribution network.The results show that the proposed method can significantly improve the resilience and enhance the overall resilience of smart urban water distribution networks. 展开更多
关键词 Digital twin Smart water distribution network Resilience evaluation Importance measure
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