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Influencing factors and preventive measures of infectious complications after intestinal resection for Crohn’s disease
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作者 Shi-Rong Lv Xiao Huang +4 位作者 Li-Yun Zhou Jie Shi Chu-Chu Gong Ming-Ke Wang Ji-Shun Yang 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第10期3363-3370,共8页
The incidence of Crohn’s disease(CD)has increased in recent years,with most patients requiring intestinal resection.Complications after intestinal resection for CD can lead to poor prognosis and recurrence,among whic... The incidence of Crohn’s disease(CD)has increased in recent years,with most patients requiring intestinal resection.Complications after intestinal resection for CD can lead to poor prognosis and recurrence,among which infectious complic-ations are the most common.This study aimed to investigate the common risk factors,including medications,preoperative nutritional status,surgery-related factors,microorganisms,lesion location and type,and so forth,causing infectious complications after intestinal resection for CD,and to propose corresponding preventive measures.The findings provided guidance for identifying suscept-ibility factors and the early intervention and prevention of infectious complic-ations after intestinal resection for CD in clinical practice. 展开更多
关键词 Crohn’s disease Intestinal resection Postoperative infectious complications Influencing factors preventive measures
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Review of preventive and constructive measures for coal mine explosions:An Indian perspective 被引量:5
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作者 Santosh Kumar Ray Asfar Mobin Khan +3 位作者 Niroj Kumar Mohalik Debashish Mishra Somu Mandal Jai Krishna Pandey 《International Journal of Mining Science and Technology》 SCIE EI CAS CSCD 2022年第3期471-485,共15页
Firedamp and coal dust explosion constitute a lion’s share in mine accidents in a global mining scenario.This paper reports a list of mine explosion disasters since last two decades,a critical review of the different... Firedamp and coal dust explosion constitute a lion’s share in mine accidents in a global mining scenario.This paper reports a list of mine explosion disasters since last two decades,a critical review of the different prevention and constructive measures,and its recent development to avoid firedamp and coal dust explosion.Preventive legislation in core coal-producing countries,viz.China,USA,Australia,South Africa,and India related to firedamp and coal dust explosion are critically analysed.Accidents occurred due to explosion after Nationalisation of Coal Mines(1973)in India are listed.Prevention and constructive measures adopted in India are critically analysed with respect to the global mining scenario.Measures like methane credit concept,classification of mines/seams with respect to explosion risk zone,deflagration index;installation of automatic fire warning devices,canopy air curtain technology,explosion-prevention measures,such as fire-retardant materials,inhibitors,extinguishing agent,dust suppressor,and active explosion barrier are discussed in detail to avoid explosion and thereby adhering to zero accident policy due to coal mine explosion. 展开更多
关键词 Firedamp explosion Coal dust explosion preventive measures Constructive measures LEGISLATION
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Characteristics of coal resources in China and statistical analysis and preventive measures for coal mine accidents 被引量:3
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作者 Chaolin Zhang Peizhong Wang +2 位作者 Enyuan Wang Dapeng Chen Chao Li 《International Journal of Coal Science & Technology》 EI CAS CSCD 2023年第2期45-57,共13页
In the process of green and smart mine construction under the context of carbon neutrality,China's coal safety situation has been continuously improved in recent years.In order to recognize the development of coal... In the process of green and smart mine construction under the context of carbon neutrality,China's coal safety situation has been continuously improved in recent years.In order to recognize the development of coal production in China and prepare for future monitoring and prevention of safety incidents,this study mainly elaborated on the basic situation of coal resources and national mining accidents over the past five years(2017-2021),from four dimensions(accident level,type,region,and time),and then proposed the preventive measures based on accident statistical laws.The results show that the storage of coal resources has obvious geographic characteristics,mainly concentrated in the Midwest,with coal resources in Shanxi and Shaanxi accounting for about 49.4%.The proportion of coal consumption has dropped from 70.2%to 56%between 2011 and 2021,but still accounts for more than half of the all.Meanwhile,the accident-prone areas are positively correlated with the amount of coal production.Among different levels of coal mine accidents,general accidents had the highest number of accidents and deaths,with 692 accidents and 783 deaths,accounting for 87.6%and 54.64%respectively.The frequency of roof,gas,and transportation accidents is relatively high,and the number of single fatalities caused by gas accidents is the largest,about 4.18.In terms of geographical distribution of accidents,the safety situation in Shanxi Province is the most severe.From the time distribution of coal mine accidents,the accidents mainly occurred in July and August,and rarely occurred in February and December.Finally,the"4+4"safety management model is proposed,combining the statistical results with coal production in China.Based on the existing health and safety management systems,the manage-ments are divided into four sub-categories,and more specific measures are suggested. 展开更多
关键词 Resource characteristics Coal mine accidents Security situation Safety 4+4 model preventive measures
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Exploring individuals’ effective preventive measures against epidemics through reinforcement learning
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作者 Ya-Peng Cui Shun-Jiang Ni Shi-Fei Shen 《Chinese Physics B》 SCIE EI CAS CSCD 2021年第4期640-647,共8页
Individuals’ preventive measures,as an effective way to suppress epidemic transmission and to protect themselves from infection,have attracted much academic concern,especially during the COVID-19 pandemic.In this pap... Individuals’ preventive measures,as an effective way to suppress epidemic transmission and to protect themselves from infection,have attracted much academic concern,especially during the COVID-19 pandemic.In this paper,a reinforcement learning-based model is proposed to explore individuals’ effective preventive measures against epidemics.Through extensive simulations,we find that the cost of preventive measures influences the epidemic transmission process significantly.The infection scale increases as the cost of preventive measures grows,which means that the government needs to provide preventive measures with low cost to suppress the epidemic transmission.In addition,the effective preventive measures vary from individual to individual according to the social contacts.Individuals who contact with others frequently in daily life are highly recommended to take strict preventive measures to protect themselves from infection,while those who have little social contacts do not need to take any measures considering the inevitable cost.Our research contributes to exploring the effective measures for individuals,which can provide the government and individuals useful suggestions in response to epidemics. 展开更多
关键词 epidemic simulation complex networks reinforcement learning preventive measures
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Awareness about transmission and preventive measures of COVID-19 from mother to child: A cross-sectional study among pregnant women
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作者 Neetu Singh Sugandha Jauhari 《Asian pacific Journal of Reproduction》 2022年第6期261-268,共8页
Objective:To study the knowledge,attitude,and practice of pregnant women regarding transmission and preventive measures of COVID-19 from mother to child and to determine the reasons for vaccine hesitancy.Methods:This ... Objective:To study the knowledge,attitude,and practice of pregnant women regarding transmission and preventive measures of COVID-19 from mother to child and to determine the reasons for vaccine hesitancy.Methods:This observational cross-sectional knowledge,attitude,and practice study was conducted among pregnant women of any trimester,attending the antenatal care out-patient department of a tertiary care hospital in Lucknow from October 2020 to March 2021.All the participants were interviewed using a pretested semi-structured questionnaire for desired information.Reasons for vaccine hesitancy were also asked to assess their unwillingness to get vaccinated.Results:Totally 652 pregnant women were included and 91.3%were aware that COVID-19 spread through contact with an infected person and 85.3%knew that COVID-19 spread by respiratory droplets.Of pregnant women,95.7%perceived that social distancing and wearing a proper mask were effective ways to prevent SARS-CoV-2 infection and 96.8%of the pregnant women wore masks regularly when going out.Of pregnant women,79.0%were hesitant to get vaccinated.The most common reason was that COVID-19 vaccine can harm the developing fetus(77.5%)and was not very safe in pregnancy(75.0%).Conclusions:Of the pregnant women,22.92%have unsatisfactory knowledge regarding COVID-19,35.63%have negative attitude and 19.93%have poor practices,indicating that there are still gaps in awareness,and majority of them are unwilling to get vaccinated.Good awareness will help prevent the occurrence of future COVID-19 waves in India. 展开更多
关键词 COVID-19 Pregnant women AWARENESS TRANSMISSION preventive measures Vaccine hesitancy
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The Impact of Spring Disastrous Climate on Prunus sibirica var suavosperma Yield and Preventive Countermeasures
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作者 Zhou Guohua Li Yuhua +1 位作者 Bai Ruixing Lv Shangbin 《Meteorological and Environmental Research》 CAS 2015年第1期59-61,共3页
Using the data at standard ground observation field of Lingyuan Meteorological Bureau and comparative and parallel observation data during growth period of surrounding Prunus sibirica var suavosperma, and combining so... Using the data at standard ground observation field of Lingyuan Meteorological Bureau and comparative and parallel observation data during growth period of surrounding Prunus sibirica var suavosperma, and combining social investigation data about low-temperature cold injury loss of P. sibirica in recent years, it is found that low-temperature cold injury and abrupt change of temperature in spring are also important factors affecting P. sibirica yield and economic benefit. According to temperature indexes, meteorological department timely issues warning and forecast, and relevant departments and foresters take corresponding preventive measures, and strengthen cultivation technology and management of P. sibinca park. It avoids economic loss of P. sibirica caused by low-temperature cold injury, and obtains high and stable yield. 展开更多
关键词 P. sibinca Disastrous climate Low-temperature cold injury preventive measures China
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Hidden Dangers and Preventive Measures in the Inventory of Articles in Operating Room
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作者 Huang Yi Yajuan Ke +3 位作者 Hongying Zhu Suwen Lu Liurong Cheng Minghui Liu 《Open Journal of Preventive Medicine》 2021年第5期192-198,共7页
Operating Room is an important place for surgical diagnosis and treatment and rescue of patients. With the rapid development of medical technology, high, precision, sharp continuous development, operating room safety ... Operating Room is an important place for surgical diagnosis and treatment and rescue of patients. With the rapid development of medical technology, high, precision, sharp continuous development, operating room safety management is particularly important. The error of the counting of the surgical articles causes the foreign body left in the patient’s body, which will cause irreversible damage to the patient and even cause the medical dispute and touch the legal problem. Operation items inventory system is an important working system in the operating room. Scientific and standardized methods and systems for counting surgical instruments and dressings during operation can prevent foreign bodies from being left in the body, prevent errors and accidents in the operating room, and are very important for ensuring the safety of the operation of patients. In order to ensure the safety of patients, it is necessary to ensure the correct inventory of surgical items. The factors affecting the accuracy of item counting in the operating room and the preventive measures are summarized as follows. 展开更多
关键词 Operating Room ARTICLES Hidden Danger of Safety preventive Measures Reference
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Common Sports Injuries and Preventive Measures for Athletes—Take The Track and Field Team Athletes in Yushan County as an Example
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作者 Jieqiong Xie 《教育研究前沿(中英文版)》 2019年第4期313-317,共5页
Taking the common sports injuries and preventive measures of Yushan County middle school track and field athletes as the research object,the sports injuries of Yushan County middle school track and field athletes were... Taking the common sports injuries and preventive measures of Yushan County middle school track and field athletes as the research object,the sports injuries of Yushan County middle school track and field athletes were investigated and analyzed from the angle,type,location and nature of sports injury.Research on sports injury problems,trying to find the causes of sports injuries in daily training of track and field athletes,and proposed targeted preventive measures based on the specific situation of Yushan County Middle School.The results show that 77.70%of track and field athletes have suffered sports injury and periostitis and ligament/muscle strains are the most common forms of injury,and lower limbs are more prone to sports injuries than upper limbs. 展开更多
关键词 Middle School Track and Field Sports Injuries preventive Measures
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Preventive Measures to be Taken to Reduce Birth Defects
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《China Population Today》 2002年第4期16-17,共2页
关键词 preventive Measures to be Taken to Reduce Birth Defects
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Application of Preventive Treatment Theory in the Treatment of Pelvic Inflammatory Disease
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作者 ZHU Bei-bei CHEN Si +2 位作者 CHEN Yue WANG Pei-juan LU Yan 《World Journal of Integrated Traditional and Western Medicine》 2020年第9期18-25,共8页
With a history of more than two thousand years, the theory of preventative treatment has been closely followed by the development of modern medical theories on the basis of inheritance by medical experts in the past d... With a history of more than two thousand years, the theory of preventative treatment has been closely followed by the development of modern medical theories on the basis of inheritance by medical experts in the past dynasties, which has been constantly improved and enriched, and deeply applied in the prevention and treatment of serious and multiple diseases. It has achieved great benefits. For women with gynecological diseases, pelvic inflammatory disease patients accounted for a large proportion. Due to the lack of specificity in diagnosis and treatment, the condition is lingering and difficult to cure, so it seriously reduces the quality of life of women, thus affecting the harmony of family and society. From the perspective of prevention, according to the characteristics of each stage of the disease, this paper put forward substantive prevention suggestions and targeted treatment methods, ensuring preventing before disease, preventing progress after disease, and preventing reoccurring after recovery. It has important practical significance for the prevention and treatment of pelvic inflammatory diseases, as well as the development and inheritance of traditional Chinese medicine. 展开更多
关键词 preventive treatment theory Pelvic inflammatory disease Sequelae of pelvic inflammatory disease preventive measures
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Cause Analysis and Preventive Measures of Drug Shortage
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作者 Zhou Ziyang Ma Jia +2 位作者 Liu Fuyao Liu Yuhan Sun Lihua 《Asian Journal of Social Pharmacy》 2022年第2期120-131,共12页
Objective To study the current situation and the root cause of drug shortage in China, and put forward countermeasures and suggestions accordingly for relevant national policy decisions. Methods Based on literature re... Objective To study the current situation and the root cause of drug shortage in China, and put forward countermeasures and suggestions accordingly for relevant national policy decisions. Methods Based on literature research, questionnaire survey and expert consultation, the causes of drug shortage in China were comprehensively investigated, and fishbone diagram was used to further analyze the logical relationship among the causes. Results and Conclusion The main reasons for the shortage of drugs are the low profit of production enterprises and insufficient active pharmaceutical ingredients (APIs). The other reasons include uncertain demand, standard problem and few exclusive manufacturers. Besides, the monopoly of circulation enterprises also leads to the shortage of drugs to a certain extent. It is suggested that we should increase the punishment of monopoly, optimize the market environment, and establish a reasonable drug price mechanism. In addition, enterprises should participate in the information communication platform of medical institutions to solve the asymmetry between supply and demand. The research on clinical drugs to substitute drugs in need should be strengthened, and the reporting system of drug discontinuation should be improved. 展开更多
关键词 drug shortage CAUSES preventive measure
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Advancing Malaria Prediction in Uganda through AI and Geospatial Analysis Models
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作者 Maria Assumpta Komugabe Richard Caballero +1 位作者 Itamar Shabtai Simon Peter Musinguzi 《Journal of Geographic Information System》 2024年第2期115-135,共21页
The resurgence of locally acquired malaria cases in the USA and the persistent global challenge of malaria transmission highlight the urgent need for research to prevent this disease. Despite significant eradication e... The resurgence of locally acquired malaria cases in the USA and the persistent global challenge of malaria transmission highlight the urgent need for research to prevent this disease. Despite significant eradication efforts, malaria remains a serious threat, particularly in regions like Africa. This study explores how integrating Gregor’s Type IV theory with Geographic Information Systems (GIS) improves our understanding of disease dynamics, especially Malaria transmission patterns in Uganda. By combining data-driven algorithms, artificial intelligence, and geospatial analysis, the research aims to determine the most reliable predictors of Malaria incident rates and assess the impact of different factors on transmission. Using diverse predictive modeling techniques including Linear Regression, K-Nearest Neighbor, Neural Network, and Random Forest, the study found that;Random Forest model outperformed the others, demonstrating superior predictive accuracy with an R<sup>2</sup> of approximately 0.88 and a Mean Squared Error (MSE) of 0.0534, Antimalarial treatment was identified as the most influential factor, with mosquito net access associated with a significant reduction in incident rates, while higher temperatures correlated with increased rates. Our study concluded that the Random Forest model was effective in predicting malaria incident rates in Uganda and highlighted the significance of climate factors and preventive measures such as mosquito nets and antimalarial drugs. We recommended that districts with malaria hotspots lacking Indoor Residual Spraying (IRS) coverage prioritize its implementation to mitigate incident rates, while those with high malaria rates in 2020 require immediate attention. By advocating for the use of appropriate predictive models, our research emphasized the importance of evidence-based decision-making in malaria control strategies, aiming to reduce transmission rates and save lives. 展开更多
关键词 MALARIA Predictive Modeling Geospatial Analysis Climate Factors preventive Measures
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Discussion on the Soil and Water Conservation Model in Mountain Photovoltaic Power Generation Project
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作者 Aijun LIN Junwen TANG 《Asian Agricultural Research》 2024年第10期28-31,37,共5页
In the context of rising global energy demand and increasing awareness of environmental protection,photovoltaic power generation,as a clean and renewable form of energy,has become increasingly important and has receiv... In the context of rising global energy demand and increasing awareness of environmental protection,photovoltaic power generation,as a clean and renewable form of energy,has become increasingly important and has received widespread attention and application worldwide.However,during the construction and operation of mountain photovoltaic power generation projects,water and soil erosion has become a major challenge,which not only restricts the sustainable development process of the project,but also has a significant negative impact on the local ecological environment.This article deeply analyzes the multiple causes,extensive impacts and effective prevention and control strategies of water and soil erosion in mountain photovoltaic power generation projects.The results show that rainfall intensity,terrain slope,soil type and vegetation coverage are the four key factors leading to soil erosion.Soil erosion not only causes a sharp decline in soil fertility,but also aggravates the problem of sediment deposition in rivers and reservoirs,and poses a direct threat to the stability and operating efficiency of photovoltaic equipment.In order to deal with the above problems,this paper innovatively puts forward a series of soil and water conservation technologies,covering multiple dimensions such as engineering measures,plant measures,farming measures and temporary measures,and deeply discusses the application models and management strategies of these measures in key stages such as planning and design,construction,operation and maintenance.Through specific case analysis,the successful practical experience of soil and water conservation is refined and summarized,and the key role of community cooperation,technical support and modern monitoring technology in preventing and controlling soil and water erosion is further emphasized.This article aims to achieve a win-win situation of ecological environment protection and energy development and utilization through scientific planning and effective governance,and contribute to the construction of a green,low-carbon,and sustainable energy system. 展开更多
关键词 Mountain photovoltaic power generation Soil erosion Prevention and control measures Sustainable development
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Training for Vessel Collision Prevention:Circumstances and Causes of Near-Miss Incidents
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作者 Yoshiaki Kunieda Akihiro Nunome +1 位作者 Kotaro Ito Naruphun Chotechaung 《Journal of Traffic and Transportation Engineering》 2024年第6期264-275,共12页
Among the near-miss incidents related to the operation of training ship of the JMETS(Japan Agency of Maritime Education and Training for Seafarers),three characteristic cases were analyzed,extracting their circumstanc... Among the near-miss incidents related to the operation of training ship of the JMETS(Japan Agency of Maritime Education and Training for Seafarers),three characteristic cases were analyzed,extracting their circumstances and near-miss factors.Based on the results of these analyses,measures to prevent vessel collisions were studied,from which we proposed collision prevention training.The training entails(1)lookout training,(2)navigation planning training,(3)resource management training,and(4)false assumption prevention training.In future research,we aim to verify the effectiveness of the proposed training,improve the training’s effectiveness,and contribute to the development of effective anti-collision support devices. 展开更多
关键词 Collision prevention near-miss incidents collision prevention measures false assumption
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Analysis and Research on 10kV Distribution Network Faults
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作者 Jiyuan Wang Ouzhu Ciren +1 位作者 Xiaokang Zhou Ruijin Zhu 《Journal of Electronic Research and Application》 2024年第3期89-96,共8页
The 10kV distribution network is an essential component of the power system,and its stable operation is crucial for ensuring reliable power supply.However,various factors can lead to faults in the distribution network... The 10kV distribution network is an essential component of the power system,and its stable operation is crucial for ensuring reliable power supply.However,various factors can lead to faults in the distribution network.In order to enhance the safety and reliability of power distribution,this paper focuses on the analysis of faults in the 10kV distribution network caused by natural factors,operational factors,human factors,and equipment factors.It elucidates the various hazards resulting from distribution network faults and proposes corresponding preventive measures for different types of faults in the 10kV distribution network.The aim is to mitigate or reduce the impact of distribution network faults,ensuring the safe and stable operation of the distribution system. 展开更多
关键词 10kV distribution network Line faults Fault hazards preventive measures
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Epidemiological characteristics of varicella in Chongqing,China,2014-2021
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作者 Yong-Jiao Hu Qing Wang +5 位作者 Mu-Nan Zhang Xin Zeng Quan-Hong Lu Zheng Zhang Ping Cheng Jing Deng 《Medical Data Mining》 2024年第2期32-38,共7页
Background:To analyze the epidemiological characteristics of varicella epidemics in Chongqing Municipality from 2014 to 2021,and to provide a scientific basis for the formulation of varicella prevention and control me... Background:To analyze the epidemiological characteristics of varicella epidemics in Chongqing Municipality from 2014 to 2021,and to provide a scientific basis for the formulation of varicella prevention and control measures.Methods:Data on the incidence of varicella outbreaks and vaccination data in Chongqing from 2014 to 2021 were collected through the China Disease Control and Prevention Information System and statistically analyzed using descriptive epidemiological methods.Results:From 2014 to 2021,213,715 cases of varicella were reported in Chongqing Municipality,with an average annual incidence rate of 86.26/100,000,with a statistically significant difference(χ^(2)=24,972.069,P<0.001);varicella incidence is seasonal,with peaks in May/June and October/December each year,presenting a“double-peak distribution”.The average annual incidence rate of varicella in municipal districts was 90.74/100,000,which was higher than that of counties 69.62/100,000 and autonomous counties 84.04/100,000;the average annual incidence rate of varicella in males was 89.37/100,000,and in females,82.22/100,000,with the difference not being statistically significant;the age of onset of the disease was mainly in the group of people under 15 years of age,with a total of 190,021 cases reported(88.9%),with 5-9 years old(35.7%)as the high incidence age group.The incidence occupation was dominated by students in 133,733 cases(62.6%).Conclusion:The overall varicella epidemic in Chongqing is on the rise,and has obvious seasonal,regional and population distribution characteristics.The prevention and control of varicella epidemic should be strengthened,the publicity of varicella vaccine should be increased,and it is recommended that varicella vaccine should be included in the national immunization program. 展开更多
关键词 VARICELLA epidemiologic characteristics VACCINATION preventive and control measures
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上海市应对新型冠状病毒肺炎疫情综合防控策略 被引量:9
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作者 黄晓燕 陆殷昊 +5 位作者 陆韬宏 戴阳 付晨 吴寰宇 吴春峰 孙晓冬 《中国卫生资源》 北大核心 2021年第1期1-4,11,共5页
面对新型冠状病毒肺炎疫情,上海市坚决贯彻中央部署要求,采取了最严格、最全面、最积极的防控措施,在短时间内有效地遏制疫情蔓延势头。在疫情防控过程中,准确把握疫情形势变化,因时因势调整防控策略和措施,在严防境外疫情输入、有效处... 面对新型冠状病毒肺炎疫情,上海市坚决贯彻中央部署要求,采取了最严格、最全面、最积极的防控措施,在短时间内有效地遏制疫情蔓延势头。在疫情防控过程中,准确把握疫情形势变化,因时因势调整防控策略和措施,在严防境外疫情输入、有效处置本土疫情、统筹推动疫情防控和经济社会发展方面形成了行之有效的防控举措,构建起超大城市科学精准防控工作模式。 展开更多
关键词 新型冠状病毒肺炎COVID-19 本地疫情local epidemic 境外输入疫情imported epidemic 防控策略prevention and control strategy 防控措施prevention and control measure 精准防控precise prevention and control 上海市Shanghai
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Economic Analysis of Pollution Caused by Animal Farming in China
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作者 周静 马友华 +2 位作者 栾敬东 刘鹏凌 张贵友 《Agricultural Science & Technology》 CAS 2014年第7期1219-1222,共4页
The research introduced pollution caused by animal farming on waters,agricultural lands,and atmosphere,as well as environment pollution and economic causes.Furthermore,a series of economic policies were proposed on pr... The research introduced pollution caused by animal farming on waters,agricultural lands,and atmosphere,as well as environment pollution and economic causes.Furthermore,a series of economic policies were proposed on preventing animal farming,such as definition of rights property,economic impetus and circular farming. 展开更多
关键词 Animal farming Environment pollution Economic causes Prevention measures
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Occurrence of Rice Dry Straight Head Disease and Its Control
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作者 黄自安 刘小林 +2 位作者 倪春耕 胡宏云 王振荣 《Plant Diseases and Pests》 CAS 2010年第2期1-4,9,共5页
[Objective] Cause of disease and control measures of rice dry straight head disease in Chuzhou area was discussed. [Method] Field investigation and comprehensive analysis of the literature were conducted to study the ... [Objective] Cause of disease and control measures of rice dry straight head disease in Chuzhou area was discussed. [Method] Field investigation and comprehensive analysis of the literature were conducted to study the reason of dry straight head disease in Chuzhou area, some common control measures were summarized. [Result] The characteristic of main symptoms included incidence of single plant, incidence of cluster, inclusive incidence between clusters. Sporadic normal rice grains existed in diseased spikes under the incidence of grains. The main pathogenic factors of dry straight head disease were concentration of arsenic or lack of elements, belonging to physiological disease, while the effect of other pathogenic factors could not be excluded. Heavy application of organic fertilizer and crop rotation should be conducted, white soil field should be paid more attention about the changes of disease condition with more wet and dry roasting over fields. Application time of micro fertilizer should be chosen properly, while tillering final stage and pollen formation stage must be adjusted to avoid high temperature, irrigation management should also be improved. [Conclusion] The study could provide reference for preventing rice dry straight head disease. 展开更多
关键词 Rice dry straight head disease Research SYMPTOM Cause of disease Arsenic concentration Prevention and control measure
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Assessment on the Effects of Hepatitis B Prevention and Control Measures in Western China:A Comparison of Three Population-based Serosurveys 被引量:6
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作者 CHEN Hui LIU Nan +6 位作者 JI Zhao Hua PU Zhong Shu GUO Zhi Wen GAO Jie SHAO Zhong Jun LIU Yi Wen YAN Yong Ping 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2020年第10期735-744,共10页
Objective Despite the remarkable progress in efforts to control disease spread,the nationwide elimination of hepatitis B in China is still hindered by the persistently high rate of hepatitis B virus(HBV)infection in W... Objective Despite the remarkable progress in efforts to control disease spread,the nationwide elimination of hepatitis B in China is still hindered by the persistently high rate of hepatitis B virus(HBV)infection in Western China.This study aimed to evaluate the strategy of hepatitis B prevention and control in Western China and identify potential areas and strategies for improvement.Methods Susceptible population vaccination,health education,professional training of doctors,and other prevention and control measures have been implemented in Wuwei city since 2010.Data were obtained from three representative cross-sectional serosurveys conducted in 2010,2013,and 2015.The serum samples were subjected to enzyme-linked immunosorbent assays to detect the following seromarkers:HBV surface antigen(HBsAg),antibody against hepatitis B surface antigen(anti-HBs),and antibody against hepatitis B core antigen(anti-HBc).Estimates of variance were determined using Taylor series linearization methods.Results The three serosurveys revealed decreases in the prevalence of HBsAg(7.19% in 2010 vs.6.51% in 2013 vs.5.87% in 2015)and anti-HBc positivity(43.89%vs.32.87%vs.28.46%)and an increase in the prevalence of anti-HBs positivity(49.07%vs.53.66%vs.53.72%)over time.From 2010 to 2015,the legally reported incidence of hepatitis B in Wuwei city decreased from 686.53/100,000 to 53.72/100,000.Notably,persistently high HBsAg-positive rates(above 5.40%)were observed among subjects aged 20–69 years old in the three serosurveys;the prevalence of HBsAg was above 1% among children younger than 10 years old.Furthermore,rural subjects had higher rates of HBsAg and anti-HBc positivity than their urban counterparts(6.04%vs.4.83% and 30.26%vs.20.35%,respectively)in 2015 but had a lower rate of anti-HBs positivity(49.68 vs.55.18%).Multivariate regression analysis showed that age,urban and rural areas,and education level were the main factors affecting HBV infection.Conclusion Although vaccine-based prevention and control measures reduced the rate of HBV infection in Wuwei City over time,the hepatitis B infection rate in children younger than 10 years was still higher than the national average level.Therefore,the prevention and control of mother-to-child transmission and the management of the infected should be the focus of future prevention and control work. 展开更多
关键词 Hepatitis B Prevention a n d control measures SEROSURVEY Western China
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