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Examining Inequality in the Public Health Workforce Distribution in the Centers for disease control and Prevention(CDCs) System in China, 2008–2017

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Biomedical and Environmental Sciences 2020年第5期33卷 374-383页

作者： LI Yuan Qiu CHEN Hao GUO Hao Yan office of Policy Research Chinese Center for Disease Control and PreventionBeijing 102206China National Immunization Program Chinese Center for Disease Control and PreventionBeijing 100050China The National Center for Chronic and Noncommunicable disease control and Prevention Chinese Center for Disease Control and PreventionBeijing 100050China

Objective Allocation of human resources to address inequalities in the public health system has increasingly attracted societal and political *** the Centers for disease control and Prevention(CDCs)system of China as an example,we evaluated inequality in the public health workforce distribution across different regions in China between 2008 and 2017,with the aim of providing information for policymakers to support resource allocation and address growing health *** We used three standard public health workforce inequality indices-Gini coefficient,Theil L,and Theil T-and spatial autocorrelation analysis to explore spatial clusters of the workforce in different provinces,visualized with geographical *** The aggregate workforce-to-population ratio decreased from 1.47 to 1.42 per 10,000 population from 2008 to 2017,and was consistently lower than the National Health Commission’s(NHC)recommended critical shortage threshold of *** workforce distribution inequality indices varied by regional socioeconomic and health system *** clustering of CDCs workforce distribution was evident,with H–H and L–L clusters in western China and the Guangdong-Fujian region,*** Our study addressed key issues for government and policymakers in allocation of public health human *** is an urgent need for careful identification of analytic questions that will help carry out public health functions in the new era,alongside policy implications for an equitable distribution of the public health workforce focusing on the western region and low–low cluster areas.

关键词： Inequality Public health workforce CDCs Gini coefficient Geographical distribution

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Cancer profiles in China and comparisons with the USA:a comprehensive analysis in the incidence,mortality,survival,staging,and attribution to risk factors

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Science China(Life Sciences) 2024年第1期67卷 122-131页

作者： Siyi He Changfa Xia He Li Maomao Cao Fan Yang Xinxin Yan Shaoli Zhang Yi Teng Qianru Li Wanqing Chen office of Cancer Screening National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China

China faces a disproportionate cancer burden to the population size and is undergoing a transition in the cancer *** extracted data in five aspects of cancer incidence,mortality,survival,staging distributions,and attribution to risk factors in China,the USA and worldwide from open-source *** conducted a comprehensive secondary analysis of cancer profiles in China in the above aspects,and compared cancer statistics between China and the USA.A total of 4,546,400 new cancer cases and 2,992,600 deaths occurred in China in 2020,accounting for 25.1%and 30.2%of global cases,***-related cancers including lung cancer,colorectal cancer,and breast cancer showed an upward trend and have been the leading cancer types in China.41.6%of new cancer cases and 49.3%of cancer deaths occurred in digestive-system cancers in China,and the cancers of esophagus,nasopharynx,liver,and stomach in China accounted for over 40%of global ***-related cancers showed the highest population-attributable fractions among Chinese adults,and most cancers could be attributed to behavioral and metabolic *** proportions of stage I for most cancer types were much higher in the USA than in China,except for esophageal cancer(78.2%vs.41.1%).The 5-year relative survival rates in China have improved substantially during 2000–2014,whereas survival for most cancer types in the USA was significantly higher than in China,except for upper gastrointestinal *** findings suggest that although substantial progress has been made in cancer control,especially in digestive system cancers in China,there was still a considerable disparity in cancer burden between China and the *** robust policies on risk factors and standardized screening practices are urgently warranted to curb the cancer growth and improve the prognosis for cancer patients.

关键词： cancer burden survival rate neoplasm staging risk factors China

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Evaluation of Multi-Temporal-Spatial Scale Adjustment Capability and Cluster Optimization Operation Method for Distribution Networks with Distributed Photovoltaics

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Energy Engineering 2024年第9期121卷 2655-2680页

作者： Jiaxin Qiao Yuchen Hao Yingqi Liao Fang Liang Jing Bian Northeast Electric Power University Key Laboratory of Modern Power System Simulation and Control&Renewable Energy TechnologyMinistry of EducationJilin132011China State Grid Jiangsu Electric Power Co. Ltd.Power Dispatch Control CenterNanjing210017China State Grid Jiangsu Electric Power Co. Ltd.Nanjing Power Supply BranchPower Dispatch Control CenterNanjing210019China

Themassive integration of high-proportioned distributed photovoltaics into distribution networks poses significant challenges to the flexible regulation capabilities of distribution *** accurately assess the flexible regulation capabilities of distribution stations,amulti-temporal and spatial scale regulation capability assessment technique is proposed for distribution station areas with distributed photovoltaics,considering different geographical locations,coverage areas,and response ***,the multi-temporal scale regulation characteristics and response capabilities of different regulation resources in distribution station areas are analyzed,and a resource regulation capability model is established to quantify the adjustable range of different regulation *** this basis,considering the limitations of line transmission capacity,a regulation capability assessment index for distribution stations is proposed to evaluate their regulation ***,considering different geographical locations and coverage areas,a comprehensive performance index based on electrical distance modularity and active power balance is established,and a cluster division method based on genetic algorithms is proposed to fully leverage the coordination and complementarity among nodes and improve the active power matching degree within ***,an economic optimization model with the objective of minimizing the economic cost of the distribution station is established,comprehensively considering the safety constraints of the distribution network and the regulation constraints of *** model can provide scientific guidance for the economic dispatch of the distribution station ***,case studies demonstrate that the proposed assessment and optimization methods effectively evaluate the regulation capabilities of distribution stations,facilitate the consumption of distributed photovoltaics,and enhance the economic efficiency of th

关键词： Distributed photovoltaic distribution station area assessment of adjustment capacity line transmission capacity economic optimization

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Molecular Epidemiological Characteristics of Streptococcus pyogenes Strains Involved in an Outbreak of Scarlet Fever in China,2011

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Biomedical and Environmental Sciences 2013年第11期26卷 877-885页

作者： YOU Yuan Hai SONG Yan Yan YAN Xiao Mei WANG Hai Bin ZHANG Meng Han TAO Xiao Xia Li Lei Lei ZHANG Yu Xin JIANG Xi Hong ZHANG Bing Hua ZHOU Hao XIAO Di JIN Lian Mei FENG Zi Jian LUO Feng Ji ZHANG Jian Zhong Collabroative Innovation Center for Diagnosis Treatment of Infectious disease State Key Laboratory for Infectious Disease Prevention and ControlNational Institute for Communicable Disease Control and Prevention Chaoyang District Center for disease control and Prevention Beijing Suzhou City Center for disease control and Prevention office of disease control and emergency response Chinese Center for Disease Control and Prevention Harbin Municipal Center for disease control and Prevention

Objective To investigate molecular characterization of streptococcus pyogenes isolates involved in an outbreak of scarlet fever in China in 2011. Methods Seventy-four 5treptococcol pyogenes involved in an outbreak of scarlet fever were isolated from pediatric patients in the areas with high incidence in China from May to August of 2011. Emm genotyping, pulsed-field gel electrophoresis （PFGE）, superantigen （SAg） genes and antimicrobial susceptibility profiling were analyzed for these isolates. Results A total of 4 different emm types were identified. Emm12 was the most prevalent type which contained four predominating PFGE patterns corresponding to four different virulence and superantigen profiles. Emm12（79.7%） and emml （14.9%） accounted for approximately 94% of all the isolates. The speA gene was all negative in emm12 isolates and positive in emml isolates. All strains were resistant to erythromycin, and 89.4% of them were resistant to erythromycin, tracycline, and clindamycin simultaneously. Conclusion Several highly diversified clones with a high macrolide resistance rate comprise a predominant proportion of circulating strains, though no new emm type was found in this outbreak. The data provide a baseline for further surveillance of scarlet fever, which may contribute to the explanation of the outbreak and development of a GAS vaccine in China.

关键词： Scarlet fever Streptococcus pyogenes Molecular epidemiology

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Synergistic promotion of particulate matter reduction and production performance via adjusting electrochemical reactions in the zinc electrolysis industry

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Frontiers of Environmental Science & Engineering 2024年第1期18卷 23-33页

作者： Zizhen Ma Jingkun Jiang Lei Duan Jianguo Deng Fuyuan Xu Zehui Li Linhua Jiang Ning Duan School of Environmental and Municipal Engineering Qingdao University of TechnologyQingdao 266520China State Key Joint Laboratory of Environmental Simulation and Pollution control School of the EnvironmentTsinghua UniversityBeijing 100084China State Key Laboratory of Pollution control and Resources Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China School of Physics Peking UniversityBeijing 100871China

Heavy particulate matter (PM) pollution and high energy consumption are the bottlenecks of hydrometallurgy, especially in the electrolysis process. Therefore, an urgent need is to explore PM reduction methods with production performance co-benefits. This study presents three PM reduction methods based on controlling operating parameters, i.e., lowering electrolyte temperature, H2SO4 concentration, and current density of the cathode. The optimized conditions were also investigated using the response surface methodology to balance the PM reduction effect and Zn production. The results showed that lowering electrolyte temperature is the most efficient, with an 89.0% reduction in the PM generation flux (GFPM). Reducing H2SO4 concentration led to the minimum side effects on the current efficiency of Zn deposition (CEZn) or power consumption (PC). With the premise of non-deteriorating CEZn and PC, GFPM can be reduced by 86.3% at the optimal condition (electrolyte temperature = 295 K, H2SO4 = 110 g/L, current density = 373 A/m^(2)). In addition, the reduction mechanism was elucidated by comprehensively analyzing bubble characteristics, electrochemical reactions, and surface tension. Results showed that lower electrolyte temperature inhibited the oxygen evolution reaction (OER) and compressed gas volume. Lower H2SO4 concentration inhibited the hydrogen evolution reaction (HER) and reduced electrolyte surface tension. Lower current density inhibited both OER and HER by decreasing the reaction current. The inhibited gas evolutions reduced the microbubbles’ number and size, thereby reducing GFPM. These results may provide energy-efficient PM reduction methods and theoretical hints of exploring cleaner PM reduction approaches for industrial electrolysis.

关键词： Zinc electrolysis Particulate matter Energy consumption Operating parameters Bubble characteristic Electrochemical reaction

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Early Warning and Monitoring of Coronavirus disease 2019 Using Baidu Search Index and Baidu Information Index in Guangxi,China

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Infectious Microbes & diseases 2022年第4期4卷 168-174页

作者： Yihong Xie Wanwan Zhou Jinhui Zhu Yuhua Ruan Xiaomin Wang Tengda Huang Department of Epidemiology and Biostatistics Guangxi Medical UniversityNanningGuangxiChina Guangxi Key Laboratory of Major Infectious disease Prevention control and Biosafety emergency response Guangxi Center for Disease Control and PreventionNanningGuangxiChina

Coronavirus disease 2019(COVID-19)is an emerging infectious disease,and it is important to detect early and monitor the disease trend for policymakers to make informed *** explored the predictive utility of Baidu Search Index and Baidu Information Index for early warning of COVID-19 and identified search keywords for further monitoring of epidemic trends in Guangxi.A time-series analysis and Spearman correlation between the daily number of cases and both the Baidu Search Index and Baidu Information Index were performed for seven keywords related to COVID-19 from January 8 to March 9,*** time series showed that the temporal distributions of the search terms“coronavirus,”“pneumonia”and“mask”in the Baidu Search Index were consistent and had 2 to 3 days'lead time to the reported cases;the correlation coefficients were higher than *** Baidu Search Index volume in 14 prefectures of Guangxi was closely related with the number of reported cases;it was not associated with the local *** Baidu Information Index search terms“coronavirus”and“pneumonia”were used as frequently as 192,405.0 and 110,488.6 per million population,respectively,and they were also significantly associated with the number of reported cases(rs>0.6),but they fluctuated more than for the Baidu Search Index and had 0 to 14 days'lag time to the reported *** Baidu Search Index with search terms“coronavirus,”“pneumonia”and“mask”can be used for early warning and monitoring of the epidemic trend of COVID-19 in Guangxi,with 2 to 3 days'lead time.

关键词： COVID-19 Baidu Search Index Baidu Information Index early warning monitoring epidemic trend

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Urgent Need to Ratify National Legislation Banning Smoking in Public Places

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China CDC weekly 2020年第23期2卷 426-427页

作者： Yuan Jiang Tobacco control office Chinese Center for Disease Control and PreventionBeijingChina

China produces 40%of the world’s cigarettes(1)and has more than 300 million smokers(2).How to control smoking is still a serious *** damages people’s health and increases the burden of medical expenses of the whole *** order to promote the construction of a healthy China and improve people’s health level,the Chinese government issued the outline of“Healthy China 2030”in 2016,which proposed specific measures and objectives for smoking control work:comprehensively promote the implementation of tobacco control,increase the intensity of tobacco control,and use tax and price,law and other means to improve the effectiveness of smoking control.

关键词： smoke measures law

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Burden of Acute Viral Hepatitis--China,1990−2019

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China CDC weekly 2020年第31期2卷 579-586页

作者： Shicheng Yu Qiqi Wang Shujun Wang Jiaojiao Zhang Yuehua Hu Junqi Li Xiaojuan Long Xianglong Xiang Maigeng Zhou Feng Tan office of Epidemiology Chinese Center for Disease Control and PreventionBeijingChina National Center for Chronic and Non-Communicable disease control and Prevention Chinese Center for Disease Control and PreventionBeijingChina Department of Academic Publishing Chinese Center for Disease Control and PreventionBeijingChina

What is already known about this topic?The World Health Organization’s(WHO)Global Health Estimates(GHE)reported that acute hepatitis caused 9,213 deaths and 307,720 person years of disability-adjusted life years(DALYs)in 2016,and acute hepatitis B accounted for 85.81%of all DALYs among acute hepatitis types A,B,C,and E in *** is added by this report?In China,the percent changes in years lived with disability(YLDs)due to acute hepatitis A,B,and E in groups aged 50–69 years and 70 years or more and in all age groups for acute hepatitis C were increased from 2000 to *** are the implications for public health practices?Effective vaccines,interventions,and treatments are key approaches to achieve the WHO’s goal of reducing new hepatitis infections by 90%and deaths by 65%between 2016 and 2030.

关键词： acute hepatitis China.

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Awareness of Tobacco-Related Health Hazards among Adults in China

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Biomedical and Environmental Sciences 2010年第6期23卷 437-444页

作者： YAN YANG JI-JIANG WANG CONG-XIAO WANG QIANG LI GONG-HUAN YANG National office for Tobacco control China Center for Disease Control and Prevention Beijing 100050 China Universtty of Waterloo Waterloo Ontario Canada

Objective To determine the level of awareness of the hazards of tobacco smoking and secondhand smoke inhalation among adults in China. Methods Household surveys were conducted with a total of 13 354 respondents aged 15 years or over from 100 counties of 28 Chinese provinces using a stratified multi-stage geographically clustered sample design. Results The findings revealed that 81.8% of the population was aware that smoking causes serious diseases, and 27.2% and 38.7% were aware that smoking causes stroke and heart attack, respectively. Only 64.3% of respondents were aware that secondhand smoke can cause serious diseases, and 27.5%, 51.0%, and 52.6% were aware that secondhand smoke causes heart disease in adults, lung disease in children and lung cancer in adults, respectively. Awareness regarding smoking-related hazards across all participants was significantly associated with several factors, including gender, smoking status, urban/rural residency, education level and exposure to tobacco control publicity in the last 30 days. Awareness regarding tobacco-related hazards in smokers was significantly associated with urban/rural residency, education level, exposure to tobacco control publicity in the last 30 days, and physician＇s advice. Awareness relating to the hazards of inhaling secondhand smoke was associated with smoking status, urban/rural residency, age, education level, and exposure to tobacco control publicity in the last 30 days. Medical professionals were found to know more about the health hazards of tobacco compared with people in other types of employment. Conclusions Overall awareness of the health hazards of tobacco has improved in the last 15 years in China, but is still relatively poor. Improved means of communicating information and more effective warning labels on cigarette packaging are necessary for increasing public awareness of tobacco hazards, particularly among rural residents and people with less education.

关键词： Smoking Secondhand smoke Awareness Knowledge

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Chemotherapy-based control of Ascariasis and Hookworm in Highly Endemic Areas of China:Field Observations and a Modeling Analysis

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Biomedical and Environmental Sciences 2012年第3期25卷 272-281页

作者： WANG Jun LI Hua Zhong CHEN Ying Dan LIU Chang Hua TANG Lin Hua National Institute of Parasitic disease Chinese Center for Disease Control and Prevention Shanghai 200025 China Center for Drug Evaluation SFDA Beijing 100038 China office for disease control and emergency response Chinese Center for Disease Control and Prevention Beijing 102206 China Sichuan Center for disease control and Prevention Chengdu 610041 Sichuan China

Objective Our objective was to systematically evaluate chemotherapy-based control of ascariasis and hookworm infection and make predictions of the effectiveness of repeated mass treatment at different levels of coverage in highly endemic areas of China. Methods Field surveys were carried out to acquire the ascariasis and hookworm prevalence and intensity （mean worm burden） at baseline, one month and one year later. We calculated model parameters based on the survey data, then incorporated them into a quantitative framework to predict the prevalence and intensity one year later. Sensitivity analyses were performed to assess the influence of the chemotherapy measures on prevalence and intensity, and model simulations were performed to evaluate the feasibility of achieving the proposed transmission control criteria under different chemotherapy measures. Results The predicted prevalence and intensity one year from baseline were within the 95% confidence interval of actual values. As treatment frequency or coverage increased, the prevalence and intensity decreased. Model simulations show that many rounds of treatment are needed to maintain the prevalence at a low level in highly endemic areas of China. Conclusion We should select different combinations of treatment frequency, coverage and drug efficacy according to available resources and practical attainable conditions. Mathematical modeling could be used to help optimize the chemotherapeutic scheme aiming at specific parasitic species and areas, and to direct the establishment of soil-transmitted helminthiasis control criteria in China.

关键词： Ascariasis Hookworm Chemotherapy Field survey Mathematical modeling

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