Suchergebnisse

Background: Since the 21st century, humans have experienced five public health emergencies: the severe acute respiratory syndrome (SARS), type A H1N1 influenza (H1N1), Middle East respiratory syndrome (MERS), Ebola virus disease (EVD), and the new coronavirus pneumonia (COVID-19). They caused a large number of casualties and a wider psychological crisis, which might cause severe consequences such as post-traumatic stress disorder and suicide. Aims: To reveal the law of formation of public psychological crisis in public health emergencies, and draw lessons from it. To provide ideas for effectively deal with these psychological crisis problems and fundamentally curbing the occurrence of public health emergencies. Method: Through the method of literature research, 'public health incidents', 'psychological crisis', 'mental health', 'psychological intervention', 'SARS', 'H1N1', 'MERS', 'EVD', and 'COVID-19' were used to search literatures in the databases such as PubMed, Springer, and Sciencedirect, and the literatures were summarized, sorted, and studied. Results: (1) The public health emergencies caused a universal psychological crisis. The main manifestations were depression, compulsion, despair, etc. The people involved mainly include patients, suspected isolated patients, medical staff, and the general public in the epidemic situation. (2) People's psychological state often experienced stress stage, shock stage, acceptance, and reorganization. Only some susceptible individuals couldn't complete effective psychological reconstruction, resulting in serious psychological disorders. Individual susceptibility is related to genetic factors, adversity, and traumatic stimuli experienced in early life. Conclusion: To reduce these psychological crisis problems, we should establish and improve the psychological crisis intervention or rescue system of public health emergencies, it was still necessary to live in harmony with nature, get rid of the inappropriate habit of preying on wild animals, in order to prevent the cross-species transmission of the virus between wild animals and humans, and to fundamentally avoid the occurrence of major infectious diseases.

The Pearl River Delta, one of the main regions of China's export-oriented economy, has benefited from its traditional economic structure for three decades which in turn appeared to hinder further economic development recently. To advance industrial restructuring and upgrading, the governments have promulgated policies and appropriated special funds to optimize the industrial structure of the Pearl River Delta. Dongguan is a famous export-oriented and manufacturing city in China. Taking Dongguan city as a case, and applying the method of Difference-in-Difference (DID), using time-series data from 1997 to 2014, this article analyzes the policy benefits of Dongguan's industrial transformation and upgrading, aiming to not only examine the effectiveness of industrial upgrades and the effects of economic governance in the Pearl River Delta but provide some reference to other export-oriented regions of China.

| openaire: EC/H2020/788489/EU//BioELCell Funding Information: This work was supported by the National Natural Science Foundation of China (Grant Nos. 31730106, 31770623, 31670555), the Canada Excellence Research Chair initiative (CERC-2018-00006), and Canada Foundation for Innovation (Project number 38623), as well as the European Research Council (ERC), under the European Union's Horizon 2020 research and innovation programme (Grant Agreement No. 788489). T.G. would like to acknowledge the financial support from China Scholarship Council (CSC). The authors thank Dr. Zhifeng Wang of the Test Center at Yangzhou University for technical assistance. Publisher Copyright: © 2021 American Chemical Society. All rights reserved. ; We investigate the mechanism of binding of dopamine-conjugated carboxymethyl cellulose (DA-CMC) with carbon nanotubes (CNTs) and the strain-induced interfacial strengthening that takes place upon wet drawing and stretching filaments produced by wet-spinning. The filaments are known for their tensile strength (as high as 972 MPa and Young modulus of 84 GPa) and electrical conductivity (241 S cm-1). The role of axial orientation in the development of interfacial interactions and structural changes, enabling shear load bearing, is studied by molecular dynamics simulation, which further reveals the elasto-plasticity of the system. We propose that the reversible torsion of vicinal molecules and DA-CMC wrapping around CNTs are the main contributions to the interfacial strengthening of the filaments. Such effects play important roles in impacting the properties of filaments, including those related to electrothermal heating and sensing. Our findings contribute to a better understanding of high aspect nanoparticle assembly and alignment to achieve high-performance filaments. ; Peer reviewed