scholarly journals A rapid review of the use of face mask in preventing the spread of COVID-19

2021 ◽  
Vol 3 ◽  
pp. 100013
Author(s):  
Mary Abboah-Offei ◽  
Yakubu Salifu ◽  
Bisi Adewale ◽  
Jonathan Bayuo ◽  
Rasheed Ofosu-Poku ◽  
...  
Keyword(s):  
2020 ◽  
Vol 19 (2) ◽  
pp. 186-193
Author(s):  
Woo-Taeg Kwon ◽  
◽  
Min-Jae Jung ◽  
Bum-Soo Kim ◽  
Woo-Sik Lee ◽  
...  

MRS Advances ◽  
2020 ◽  
Vol 5 (64) ◽  
pp. 3507-3520
Author(s):  
Chunhui Dai ◽  
Kriti Agarwal ◽  
Jeong-Hyun Cho

AbstractNanoscale self-assembly, as a technique to transform two-dimensional (2D) planar patterns into three-dimensional (3D) nanoscale architectures, has achieved tremendous success in the past decade. However, an assembly process at nanoscale is easily affected by small unavoidable variations in sample conditions and reaction environment, resulting in a low yield. Recently, in-situ monitored self-assembly based on ion and electron irradiation has stood out as a promising candidate to overcome this limitation. The usage of ion and electron beam allows stress generation and real-time observation simultaneously, which significantly enhances the controllability of self-assembly. This enables the realization of various complex 3D nanostructures with a high yield. The additional dimension of the self-assembled 3D nanostructures opens the possibility to explore novel properties that cannot be demonstrated in 2D planar patterns. Here, we present a rapid review on the recent achievements and challenges in nanoscale self-assembly using electron and ion beam techniques, followed by a discussion of the novel optical properties achieved in the self-assembled 3D nanostructures.


Author(s):  
Stephanie Veazie ◽  
Jennifer Gilbert ◽  
Kara Winchell ◽  
Robin Paynter ◽  
Jeanne-Marie Guise

2020 ◽  
Author(s):  
Patrizia Zeppegno ◽  
Carla Gramaglia ◽  
Chiara Guerriero ◽  
Fabio Madeddu ◽  
Raffaella Calati

Background: The World Health Organization declared the Corona Virus Disease 19 (Covid-19) a pandemic in March 2020. Psychological impact of Covid-19 can be consisent and should be prevented with adequate measures. Methods: We performed a literature mini review searching for studies in PubMed focusing on the psychological/psychiatric impact of Covid-19.Results: The selection process yielded 34 papers focusing on the relation between Covid-19 and mental health: 9 correspondence, 8 letters to the editor, 7 commentaries, 3 editorials, 4 original studies, 2 brief reports, and 1 a rapid review. The majority of the articles were performed in China. They focused on the general population and particular categories considered more fragile, e.g., psychiatric patients, older adults, international migrant workers, homeless people. Authors are unanimous in believing that Covid-19 will likely increase the risk of mental health problems and worsen existing psychiatric disorders/symptoms in patients, exposed subjects, and staff. Together with the negative emotionality related to the unpredictability of the situation, uncertainty concerning the risk, excessive fear, fear of death, loneliness, guilt, stigma, denial, anger, frustration, boredome, some symptoms might appear such as insomnia until patophobia (specifically, coronaphobia), depressive and anxiety disorders, post-traumatic stress disorder, and suicidal risk.Limitations: Literature is rapidly increasing and present results are only partial. Conclusions: Mental health care should not be overlooked in this moment. The experience of China should be of help for all the countries facing with Covid-19, among them Italy.


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