Multimodal sentiment analysis for social media contents during public emergencies

Purpose:Nowadays,public opinions during public emergencies involve not only textual contents but also contain images.However,the existing works mainly focus on textual contents and they do not provide a satisfactory accuracy of sentiment analysis,lacking the combination of multimodal contents.In this paper,we propose to combine texts and images generated in the social media to perform sentiment analysis.Design/methodology/approach:We propose a Deep Multimodal Fusion Model(DMFM),which combines textual and visual sentiment analysis.We first train word2vec model on a large-scale public emergency corpus to obtain semantic-rich word vectors as the input of textual sentiment analysis.BiLSTM is employed to generate encoded textual embeddings.To fully excavate visual information from images,a modified pretrained VGG16-based sentiment analysis network is used with the best-performed fine-tuning strategy.A multimodal fusion method is implemented to fuse textual and visual embeddings completely,producing predicted labels.Findings:We performed extensive experiments on Weibo and Twitter public emergency datasets,to evaluate the performance of our proposed model.Experimental results demonstrate that the DMFM provides higher accuracy compared with baseline models.The introduction of images can boost the performance of sentiment analysis during public emergencies.Research limitations:In the future,we will test our model in a wider dataset.We will also consider a better way to learn the multimodal fusion information.Practical implications:We build an efficient multimodal sentiment analysis model for the social media contents during public emergencies.Originality/value:We consider the images posted by online users during public emergencies on social platforms.The proposed method can present a novel scope for sentiment analysis during public emergencies and provide the decision support for the government when formulating policies in public emergencies.

Study on the Treatment Strategy of Batches of the Wounded and Partial First-Aid Procedures in Public Emergencies in Tertiary General Hospitals

Objective: The purpose is to formulate treatment strategies of batches of the wounded and partial first-aid procedures, and further improve the emergency rescue capability of hospitals. Methods: This study analyzed the emergency treatment case that we participated in. In this case, we used various means to start the emergency plan, run the emergency procedures, optimize diagnosis, treatment, and rescue procedures, mobilize medical rescue resources, provide a reference for emergency command decisions, formulate a set of coping strategies of tertiary general hospitals on public emergencies. Results: Through the scientific and effective management of our hospital, 20 wounded have been discharged from the hospital and achieved the ideal effect of zero deaths in the hospital. Conclusions: The new mode of first-aid and health emergency management on the scene of modern disaster needs to find ways to minimize the loss of life and property brought by public emergencies, integrate the various sections of modern disaster medicine, integrate a large number of international and domestic basic and clinical research achievements of disaster first-aid, and upgrade to information, digital system.

Sustainable Community Epidemic Prevention Countermeasures against Public Health Emergencies

How to deal with public health emergencies is an important issue related to the normal life of community residents. However, after the corresponding understanding, it is found that a series of unsustainable epidemic prevention factors have been exposed in the community in the COVID-19, such as blocked access to basic materials, unsafe living environment, and lack of social platforms. In view of these problems, based on Maslow’s hierarchy of needs, the changes in the hierarchy of needs of residents during the epidemic were analyzed, and sustainable community epidemic prevention strategies were proposed from five aspects of material storage, safe environment, social platform, respect opportunity and self-worth realization, so as to provide effective reference for future response to public health emergencies.

An Analysis of the Evolution of Online Public Opinion on Public Health Emergencies by Combining CNN-BiLSTM + Attention and LDA

In this paper, the Foxconn epidemic event in Zhengzhou was taken as an example to analyze the evolution of online public opinion on public health emergencies. In order to improve the performance of online public opinion analysis, based on the life cycle theory and LDA theory, the emotional changes of Internet users in four stages of the Foxconn incident centered on the evolution of inscription were divided. The emotions of netizen speech at different stages are analyzed based on CNN-BiLSTM + Attention model, which uses Convolutional Neural Network (CNN) to extract local features. Bi-directional Long Short-Term Memory (BiLSTM) is used to efficiently extract contextual semantic features and long distance dependencies, and then combined with attention mechanism to add emotional features. Finally, Softmax classifier realizes text emotion prediction. The experimental results show that: compared with TextCNN, BiLSTM, BiLSTM + Attenion, CNN-BiLSTM model, the emotion classification model has better effects in the accuracy rate, accuracy rate, recall rate and F value. By analyzing the emotional distribution and evolution trend of public opinion under “text topic”, the paper accurately deconstructs the development characteristics of public opinion in public health emergencies, in order to provide reference for relevant departments to deal with public opinion in public health emergencies. .

Survey on the Status Quo of Emergency Response Capabilities of Public Health Emergencies in Grassroots Disease Control Institutions in a Certain Area

Objective:To survey and study the emergency response capabilities of grassroots disease control institutions in a certain area for public health emergencies,and to put forward suggestions for rectification.Methods:The study was carried out from March 2022 to March 2023.Field surveys,questionnaire surveys,and interviews were used to investigate and analyze the emergency response capabilities of public health emergencies in 5 county Centers for Disease Control and Prevention(CDCs)in the region.Results:Through the survey,it was found that the professional level of the existing emergency team personnel of the grassroots disease control institutions in this region needs to be improved.There was an overall lack of emergency plans,and the compliance rate of the equipment,inspection,and testing items was low.The health emergency system of the CDCs in the region and the ability of the talent team need to be further improved.Conclusion:The emergency response capacity of grassroots disease control institutions in this region needs to be improved.For this reason,government departments need to increase investment and strengthen the construction of talent teams and hardware settings,and grassroots disease control institutions need to strengthen the construction of the public health emergency system to improve the ability to respond to public health emergencies.

A Study on Current Situation of Psychological Crisis Intervention in Public Emergencies

Public emergencies exert a significant impact on the mental health of the people,while psychological crisis intervention can efficiently improve the level of the mental health. The existing psychological crisis intervention in China has weakness in organization system,budget input,human resources,social cognition,and other aspects. The psychological crisis intervention work in the future can be performed by actively perfecting the organization management system of psychological crisis intervention,increasing the budget input,strengthening the construction of psychological intervention teams,improving the level of social cognition,and so on.

Review and prospects of strategies and measures for typhoon-related disaster risk reduction under public emergencies in TC region

The unexpectedly outbreak of COVID-19 in early 2020,as a public emergency,has impacted the way of human behavior deeply and widely in today’s society,including the countermeasures of typhoon-related disaster risk reduction and preparedness in the Members of Typhoon Committee(TC).This paper briefed the impacts due to COVID-19 pandemic on activities of the Committee in 2020;introduced the countermeasures took in National Hydrological and Meteorological Services(NHMS)of TC Members during typhoon season in 2020 for coping with the crisis caused by COVID-19 pandemic;summarized the innovative strategies and countermeasures for dealing with the crisis of special or emergency public situation for typhoon-related disaster risk prevention,preparedness and reduction in future based on the review and analysis of the experiences from Members and international/regional agencies,and the outcomes from TC Integrated Workshop and Annual Session,including strengthening meteorological and hydrological services and value of preparedness;enhancing multi-sectoral coordination mechanisms;promoting the mobile-based data transmission and information dissemination;and increasing installation of home-based hydro-meteorological monitoring stations.The paper also discussed the impact-based forecasting and the application of big-data and AI technology in typhoon-related disaster risk reduction as two new key areas to be taken into consideration in TC updating Strategic Plan 2022 e2026.

Emergency Optimization Design of Living Room of High-rise Residence Based on Major Public Health Emergencies

When a major public health emergency comes,people are forced to be isolated at home.During the period of residential isolation by epidemic,use of indoor space in high-rise residential buildings puts forward higher requirements for the health and variability of indoor space in addition to meeting the basic living needs.By analyzing the current situation and characteristics of living room space design of high-rise residence,combined with basic health protection awareness of residents and environmental sanitation requirements,this paper explores the basic functions of living room space design,and puts forward suggestions on space optimization design.

Study on Emergency Management Mechanism of Public Health Emergencies

The outbreak of SARS in 2003 opened the way of public health emergency management in China.COVID-19 which suddenly outbroke in 2019 is still raging all over the world,and emergency management mechanism of China is being tested.Efforts to improve the emergency management mechanism can provide effective institutional guarantee for the overall victory of anti epidemic and the prevention and control of public health emergencies.

Leadership,communication,and science:three pillars essential to public health emergency response and closing the gap in the HIV response among key populations

Globally,there have been multiple public health emergencies in recent decades.High rates of morbidity,occasionally mortality,and economic instability are usually associated with pandemics.One of the epidemics that has significantly increased morbidity and mortality worldwide is the human immunodeficiency virus(HIV)and acquired immune deficiency syndrome(AIDS)pandemic.HIV has a disproportionately negative impact on key populations.Strong leadership,effective communication,and sound science are necessary for public health emergency(PHE)responses to be successful.These three PHE response pllars are also essential for bridging the HIV response gap among key populations in the setting of restrictive laws.In this review,we explored the importance of these three pillars of successful PHEs responses,and how they are essential to closing the gap in the HIV response among key populations.Leaders must make decisions and instil a sense of authority in the populace during PHEs to foster trust and confidence.Leaders should base their choices on scientific evidence.Effective communication during PHEs should be proactive,polite,imaginative,innovative,and constructive.To address gaps in the HIV response among key populations,leaders must create a supportive environment for effective communication and scientific research,communication should be used to raise awareness of HIV and to dispel stigma and discrimination,while science should provide evidence of efficacy and effectiveness of interventions amongkey populations.

Development Path and Urgency of Further Strengthening Construction of Public Hospitals Based on Novel Coronavirus Pneumonia Treatment

During the outbreak of novel coronavirus pneumonia(NCP)in Wuhan,public hospitals have played an important role in intensive care,case guidance and scheme optimization.At the same time,it also faces unprecedented challenges and tests.Based on the treatment of severe patients in Wuhan,combined with the treatment practice in Tongji Hospital affiliated to Tongji Medical College,Huazhong University of Science and Technology,this paper puts forward the urgency of further strengthening the construction of public hospitals,discusses the feasible path for promoting the development of public hospitals,so as to meet the growing medical needs of the people,improve the ability to respond to major public health emergencies,and effectively guarantee the safety of people's lives and the promotion of a healthy China construction.

Enlightenment from the COVID-19 Pandemic:The Roles of Environmental Factors in Future Public Health Emergency Response

The coronavirus disease 2019(COVID-19)pandemic is challenging the current public health emergency response systems(PHERSs)of many countries.Although environmental factors,such as those influencing the survival of viruses and their transmission between species including humans,play important roles in PHERSs,little attention has been given to these factors.This study describes and elucidates the roles of environmental factors in future PHERSs.To improve countries’capability to respond to public health emergencies associated with viral infections such as the COVID-19 pandemic,a number of environmental factors should be considered before,during,and after the responses to such emergencies.More specifically,to prevent pandemic outbreaks,we should strengthen environmental and wildlife protection,conduct detailed viral surveillance in animals and hotspots,and improve early-warning systems.During the pandemic,we must study the impacts of environmental factors on viral behaviors,develop control measures to minimize secondary environmental risks,and conduct timely assessments of viral risks and secondary environmental effects with a view to reducing the impacts of the pandemic on human health and on ecosystems.After the pandemic,we should further strengthen surveillance for viruses and the prevention of viral spread,maintain control measures for minimizing secondary environmental risks,develop our capability to scientifically predict pandemics and resurgences,and prepare for the next unexpected resurgence.Meanwhile,we should restore the normal life and production of the public based on the“One Health”concept,that views global human and environmental health as inextricably linked.Our recommendations are essential for improving nations’capability to respond to global public health emergencies.

2022 Monkeypox outbreak:Why is it a public health emergency of international concern?What can we do to control it?

The World Health Organization(WHO) called the recent monkeypox(MPX)outbreak a Public Health Emergency of International Concern on July 23,2022.The United States of America(US) alarmed the recent MPX outbreak as the US public health emergency on August 4,2022.Since early May 2022,more than 35000 MPX cases and 12 deaths had been reported to WHO from 92 countries and territories by August 17,2022,and MPX cases continue rising rapidly with improved surveillance,access to diagnosis,and continuous virus spreading globally.Approximately 99% MPX cases are men,of which 95% cases are men who have sex with man.No evidence of MPX being sexually transmitted infections(STIs) is found;however,a high percentage(25%) of concurrent STIs and frequent anogenital symptoms suggest transmission through local inoculation during close intimate contact or sexual activity.Many approaches including a comprehensive international vaccination strategy and adequate supplies are mandatory to prevent MPX pandemic.Education,vaccination,MPX scrutiny and careful monitoring,and crossborder collaborations with international sectors are practical strategy to contain MPX outbreaks.People are educated to reduce the risk of exposure and to reduce the number of sexual partners especially new ones,to avoid contacting travelers from epidemic regions or animals that may carry MPX virus,and avoid traveling to endemic areas.

Leveraging the Public Health Emergency Operation Center (PHEOC)for pandemic response: opportunities and challenges

Public Health Emergency Operation Center (PHEOC) was conceptualized and established for coordinatinginformation and resources towards goal-oriented response in large scale public health emergency. Yet, theactivities undertaken by PHEOCs and their intended goals have not been fully optimized in current scenario.This paper revisited the collective efforts invested in PHEOC conceptualization and development, identified theopportunities and challenges in compliance with standards and framework, demonstrated the accountabilityof PHEOC network, thereby promoted best practice guidance for global public health emergency preparednessand response. This review will help navigate emergency response complexities leveraging PHEOC partnershipsand advance the ability to detect and respond to public health emergencies in low resource settings. The reviewshows that the information on how to adapt best practice guidance to local circumstances could incentivizethe full implementation of prevention, early detection and response to outbreaks. Identifying and correctingdeficiencies in effectiveness evaluation will provide the basis for continuous PHEOC improvement. With thegradually reopening economies and public services in some countries, there is an urgent need to emphasize andvalidate the collective efforts undertaken by PHEOCs for tackling the COVID-19 pandemic.

Discussion on the Information Collection Methods of Public Health Emergency Files

In public health emergencies, the collection of archival information in the area of public health emergencies is very important, which can provide a reference for the early warning and processing mechanism. At the present stage, the unlimited demand of archival users for resources and the convenience of obtaining resources have become the two driving forces to promote the “transformation” and “growth” of archives. Public health emergencies, the transformation of archives collection and service mode, social media has become an indispensable platform for user information exchange, sharing and transmission, which requires archives to change the mode of archives acquisition and storage. Archival users require more interactive, targeted and cutting-edge forms of access and archival services are also developing toward diversified functions and connotations. Archival information resource sharing is also an important link in this development trend. This paper attempts to analyze the collection methods of archives departments in public health emergencies, and then puts forward the corresponding measures for archives departments to play their functions, such as flexibly solving the needs of archives access, strengthening the development of information resources, doing a good job in the collection of relevant archives, and publicizing archives work in combination with hot spots. This paper discusses the completeness of archival data collection, the means of archival management, the scientific classification of archival data, the ways of archival data collection and so on.

长三角区域公共卫生应急协同联防联控机制研究

目的 了解长三角区域公共卫生应急协同联防联控机制的现状,构建长三角区域卫生应急协同机制框架,提出完善长三角区域公共卫生应急协同联防联控机制的建议。方法 在文献检索、专家访谈的基础上,设计长三角区域卫生应急协同机制框架,编制专家咨询问卷,选择18位相关领域专家对长三角区域卫生应急协同机制框架的三级主题从重要性、现状完备程度、优化难易程度进行评分,并对专家咨询数据的可靠性进行分析。结果 长三角区域卫生应急协同机制框架包括应急指挥决策的跨区域协同机制、监测预警与风险评估的跨区域联防机制、跨区域应急处置的协同响应机制和跨区域联防联控能力建设机制等4个一级主题,分13个二级主题和29个三级主题。专家积极程度为100%。总体专家权威系数Cr=0.86,表明专家咨询的结果具有一定的权威性。专家意见的Kendall W协调系数为0.60,P <0.001,说明专家评估意见一致性高的结果是可信的。各主题条目的重要性得分均数> 3.9,表明本研究框架中的所有主题均比较重要,有继续发展完善的价值,其中现状完备程度较低、优化较易的主题为联席会议制度、区域专家库建设、应急联合会商研判、区域联合预警、密接协查与跨省追踪、信息联合通报与共享、联合复盘与评估、人才交流与互访、联合应急培训、区域应急梯队建设和应急科研合作。结论 长三角区域协同联防联控机制发挥成效需要顶层设计、政策支持、技术专业人员全面深度融合。建议长三角三省一市加强协同监测预警和信息互通共享,强化跨区域协同应急联合处置,加强人员交流和队伍联合培训,深化区域科研合作和标准化建设,发挥优势,引领全国。

Comparative Analysis of Social Forces Participating in Emergency Management of Public Health Events in China, Australia, Germany and the United States

Objective To provide a reference and suggestions for Chinese social forces to participate in the emergency management of public health events.Methods Through literature research method,comparative research method and SWOT matrix analysis,four aspects of prevention,early warning,response and recovery of the social forces in China,Germany,Australia and the United States participating in emergency management were studied comparatively.Results and Conclusion In the emergency management of public health events,China’s social forces play greater role in the response and recovery phase than that in the prevention and response phase.As to its shortcomings,the following suggestions are made,such as incorporating social forces into the national emergency management system,strengthening the construction and training of social forces,popularizing public health knowledge and awareness,clarifying property rights and using incentives and punishment together.

上海市公共卫生重点学科建设与人才培养的实践与思考:以2020—2022年上海市疾病预防控制中心承担项目为例

目的以上海市疾病预防控制中心承担项目为例,对上海市公共卫生重点学科建设与人才培养的实践进行客观评估,总结项目实施经验,完善项目评估机制,强化学科发展与人才培养对上海市健全公共卫生应急管理体系的支撑作用。方法基于学科建设验收评估申请书,通过定量、定性方法对学科建设期间的项目基本情况、学科建设成效、跨机构科研协作、参与公共卫生实践以及人才培养与建设等进行描述和分析。结果各学科团队承担的科研项目级别较高,较好促进了学科创新发展;各学科团队注重公共卫生实践与应用能力建设,实现了科研成果的转化落地;上海市疾病预防控制中心和复旦大学在论文发表合作网络中占据了主要地位,在多部门科研协作中发挥了重要作用;专业机构和高等院校的合作促进了公共卫生复合型人才培养。结论上海市公共卫生重点学科建设与人才培养取得了良好成效。

中国突发公共卫生事件应急能力评价现况

目的从评价主客体、评价方法、评价指标、评价应用4方面对中国评价体系现况进行系统综述,总结卫生应急能力评价体系的建设优缺点,为下一步丰富和完善卫生应急体系建设提供参考。方法运用文献研究法,对评价体系的主客体、评价方法、评价指标内容和评价指标应用4方面进行系统研究和概括讨论。结果在评价主客体方面,我国现行的卫生应急评价体系由中国疾病预防控制中心制定,评价全国范围内省、市、县各级卫生系统内相关单位的卫生应急能力。在评价方法方面,我国采取自下而上的方式,各级卫生系统行政部门自评普查,并由中国疾病预防控制中心汇总分析评价。在评价指标方面,按照事件发展可分为准备阶段、应对阶段和事后阶段3大类指标,可细分为11类一级指标。在评价指标应用方面,按照评价客体分为个人层面评估、机构组织层面评估和区域卫生系统层面评估。不同层面需根据不同评价客体选择不同侧重的指标用于评价。结论我国未来卫生应急能力评价体系还需加快标准化和个性化融合,适当引入第三方评价,丰富评价主客体,改善指标体系重主观、轻客观现状,推动理论研究向实际应用发展,定期开展评估工作。

基于耗散结构理论的公立医院组织韧性形成机制研究

借助耗散结构理论探寻公立医院组织韧性的形成机制和培育策略。首先分析耗散结构理论与公立医院组织韧性的关联性;其次从识别危机信号、适应危机变化、实现危机中反弹3个阶段分析公立医院组织韧性的形成路径,聚焦于检测性激活、适应性重构、反思性转化3项动态循环的行为,并结合耗散结构理论中熵变调节、自组织机制、涨落反馈等核心思想,提取组织韧性形成的6个关键要素,即预防正熵、增加负熵、制度适时调整、资源调配使用、反思学习、组织优化,并对每个关键要素对应的行为表现进行阐述;再者提出公立医院组织韧性的培育策略,包括培育公立医院物理韧性、制度韧性、人员技术韧性、心理韧性等,以期实现公立医院由脆弱性向韧性转变。