排序方式: 共有62条查询结果,搜索用时 15 毫秒
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在突发事件应急管理过程中,科技研发支撑作用十分关键,亟需建立突发公共卫生事件科研应急体系长效运行机制。基于科技研发应急体系的复杂性、适应性特征,从主体属性和体系架构两个层面入手,分析重大突发公共卫生事件科技研发应急体系的复杂适应系统特征,运用复杂适应系统理论模型和动态闭环螺旋模型,研究重大突发公共卫生事件科技研发应急体系运行机制。研究发现,重大突发公共卫生事件背景下,科技研发应急体系具有复杂适应系统的7个基本特征,是典型的复杂适应系统;科技研发应急体系中,科研攻关专家组、诊疗医院、科技部门等科研主体具有各自内部模型,并通过6大标识进行聚集;科技研发应急体系存在事件—需求引导、主体协同、资源交互、成果转化机制。同时,新冠病毒肺炎疫情应对实践表明,疫情防控救治进程中科技研发应急体系存在并遵循上述运行机制。 相似文献
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马娅 《西安财经学院学报》2002,15(3)
格拉斯是德国当代著名作家 ,是 1999年诺贝尔文学奖获得者。《猫与鼠》是格拉斯《但泽三部曲》的第二部。文本以动物隐喻的方式叙述了纳粹文化对个体的驯化。主人公马尔克本是个善良的青年学生 ,因为生活在希特勒的国家社会主义时代 ,在纳粹文化的诱骗下 ,丧失了自我道德、自我价值 ,最终走向毁灭。马尔克的命运是特定背景下青年人相同相近的精神状态的真实写照 相似文献
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Philippe Burger Estian Calitz 《The South African journal of economics. Suid-afrikaanse tydskrif vir ekonomie》2021,89(1):3-24
Following years of fast-rising debt levels, we show that the Covid-19 crisis worsened an already deteriorating fiscal position in South Africa. To restore fiscal sustainability in the aftermath of the crisis some commentators argue that higher government expenditure will grow GDP sufficiently to stabilise the debt/GDP ratio. We reject this, showing that although a real increase in expenditure stimulates economic growth (a short-run, once-off effect), the public expenditure/GDP ratio exceeds the level at which an increase in the ratio positively impacts growth. We then explore the past efforts of government to maintain or restore fiscal sustainability by estimating a fiscal reaction function using a Markov-switching model. Following the impact of the Covid-19 crisis on the budget, we subsequently establish the deficit, expenditure and revenue adjustments that the government will have to make to restore fiscal sustainability. Finally, we consider the merits of introducing a debt ceiling. 相似文献
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王金胜 《新疆财经学院学报》2005,(3):64-68
先锋小说是在对传统现实主义创作精神和艺术手法的反叛中确立自己的先锋性地位的。它的崛起与存在主义、后现代主义、后现代小说、现代叙事理论尤其是结构主义文学理论在国内的引入密切相关。先锋小说或多或少地表现出后现代倾向与后现代性,贯穿于其中的理论观念,则是西方形式主义的艺术情结:小说形式、语言的文体实验。先锋小说对“真实性”的重新体认,使被意识形态遮蔽的人性侧面得到深入揭示。 相似文献
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文章运用电商高频价格大数据,分析了新冠肺炎疫情对商品价格变化的影响。研究发现:根据公平定价理论,在突发疫情下商家会加入消费者情绪制定价格策略,商品价格经过调整后趋于稳定;并且,商品价格表现出较低的价格黏性,对称的交错调价使得新冠肺炎疫情对商品价格的冲击有限。因此,政府部门可利用线上商品价格编制大数据物价指标,及时反映市场供求变化,促进资源优化配置,为宏观政策制定提供依据;同时,加快推进消费数字化转型,优化线上交易环境,建立预警机制来应对突发情况。 相似文献
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Eduardo Pol Peter Carroll Paul Robertson 《Economics of Innovation and New Technology》2013,22(1):61-76
This paper is an attempt to tease out a typology of economic sectors based on a systems approach to innovation and economic growth that may be useful for policy analysis. The typology explored here revolves around novel products rather than ethereal knowledge-producing entities. This insight goes back to Allyn Young (1928) and Joseph Schumpeter (1934) who argued that the introduction of new goods was the engine of economic growth. More precisely, our typology of sectors focuses on novel products which are efficiency-enhancing within and between sectors through the market mechanism. The scheme revolves around the relationship between 'Enabling' and 'Recipient' sectors (which gives the typology its name: ER), and offers a lens for viewing and interpreting a substantive part of the mechanics of modern economic growth. The last part of the paper briefly discusses a few immediate policy implications, although it has the potential for greater use and value in this regard. 相似文献
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The COVID-19 pandemic has caused a crisis in the hotel industry worldwide, but few studies have suggested methods to retain customers. This study proposes hygiene management as a means to minimize the indirect damage from COVID-19 to the hotel industry. It identifies perceived hygiene attributes and explores their influence on hotel image, word of mouth, and revisit intentions. This study identifies and validates three types of perceived hygiene attributes through qualitative and quantitative methods. It uses structural equation modeling to validate hypotheses and concludes that there are significant relationships of influence between the proposed variables. This study provides important and meaningful insights into hotel image and customer behavior through perceived hygiene attributes. 相似文献
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《Socio》2020
Pandemic influenza is a regularly recurring form of infectious disease; this work analyses its economic effects. Like many other infectious diseases influenza pandemics are usually of short, sharp duration. Human coronavirus is a less regularly recurring infectious disease. The human coronavirus pandemic of 2019 (COVID-19) has presented with seemingly high transmissibility and led to extraordinary socioeconomic disruption due to severe preventative measures by governments. To understand and compare these events, epidemiological and economic models are linked to capture the transmission of a pandemic from regional populations to regional economies and then across regional economies. In contrast to past pandemics, COVID-19 is likely to be of longer duration and more severe in its economic effects given the greater uncertainty surrounding its nature. The analysis indicates how economies are likely to be affected due to the risk-modifying behaviour in the form of preventative measures taken in response to the latest novel pandemic virus. 相似文献