相关实验视频
Updated: Jul 28, 2025

16:14
Trajectory Data Analyses for Pedestrian Space-time Activity Study
Published on: February 25, 2013
13.6K
COVID-19应对措施限制了移动和移民的能力和愿望:来自四大洲不同城市的见解
Dominique Jolivet1,2, Sonja Fransen1, William Neil Adger3
1School of Business and Economics - UNU-MERIT, Maastricht University, Maastricht, The Netherlands.
概括
随着COVID-19的流行,移民减少了,因为他们感觉到的风险增加了,旅行能力下降了. 公共卫生响应显著改变了全球城市人口的愿望和机会.
科学领域:
- 社会学 社会学 社会学
- 城市研究 城市研究
- 公共卫生 公共卫生
背景情况:
- COVID-19的研究集中在移民健康的脆弱性上,忽视了对移民流动的更广泛影响.
- 流行病相关的经济和流动性限制显著改变了全球移民模式.
研究的目的:
- 分析公众对COVID-19流行病的反应如何影响全球城市移民决策.
- 调查与流行病相关的旅行限制,经济变化和改变移民愿望对移民的影响.
主要方法:
- 采用了移民决策框架,将愿望与能力结合起来.
- 在四大洲的六个不同城市进行了深入的定性访谈.
- 在2020年大流行期间从内部移民,国际移民和非移民收集的数据.
主要成果:
- 个人认为移民风险增加,移民愿望和能力下降.
- 在不同地理背景下,共同的机制影响了移动决策.
- 在不稳定的移民群体和高技能移民之间观察到显著的差异.
结论:
- 随着COVID-19的流行,移民决策受到普遍的影响,因为它增加了感知到的风险,并减少了流动能力.
- 移民决策的不稳定性在低收入和边缘化的城市人口中尤为明显.
相关概念视频
Applications of GIS: Disaster Management and Emergency Response
116
Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...
116
Cell Migration
4.9K
Cell migration is a process by which the cells move from one location to another, playing an essential role in embryological development, repair and regeneration, immune response, and metastasis. Cells migrate in response to chemical or mechanical signals generated by specific organs or tissues. The overall mechanism includes three steps - polarization, protrusion, and release. Polarization involves the formation of a distinct cell front and rear, which determines the direction of movement.
4.9K
Responses to Drought and Flooding
10.8K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.8K
Migration
8.0K
Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
8.0K
Global Climate Change
24.6K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.6K
Principles of Disease Surveillance
136
Disease surveillance is the systematic collection, analysis, and interpretation of health data essential to the planning, implementation, and evaluation of public health practice. This process integrates data dissemination to entities responsible for preventing and controlling disease, injury, and disability. Surveillance systems provide crucial information for action, helping public health authorities make informed decisions to manage and prevent outbreaks, ensure public safety, optimize...
136

