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10.1126/sciadv.abd3083 http://scihub22266oqcxt.onion/10.1126/sciadv.abd3083 32917603!7467698!32917603     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=32917603&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215 Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Sci+Adv 2020 ; 6 (36): ä Nephropedia Template TP {{tp|p=32917603|t=2020. Low-cost measurement of face mask efficacy for filtering expelled droplets during speech |pdf=|usr=}}{{32917603}} gab.com Text Low-cost measurement of face mask efficacy for filtering expelled droplets during speech JO: Sci Adv http://www.kidney.de/pget.php?&tw=1&pmid=32917603 #FOAvip Mandates for mask use in public during the recent coronavirus disease 2019 (COVID-19) pandemic, worsened by global shortage of commercial supplies, have led to widespread use of homemade masks and mask alternatives. It is assumed that wearing such masks reduces the likelihood for an infected person to spread the disease, but many of these mask designs have not been tested in practice. We have demonstrated a simple optical measurement method to evaluate the efficacy of masks to reduce the transmission of respiratory droplets during regular speech. In proof-of-principle studies, we compared a variety of commonly available mask types and observed that some mask types approach the performance of standard surgical masks, while some mask alternatives, such as neck gaiters or bandanas, offer very little protection. Our measurement setup is inexpensive and can be built and operated by nonexperts, allowing for rapid evaluation of mask performance during speech, sneezing, or coughing. Twit Text FOAVip Low-cost measurement of face mask efficacy for filtering expelled droplets during speech ????Sci Adv http://www.kidney.de/pget.php?&tw=1&pmid=32917603 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=32917603 #FOAvip English Wikipedia <ref>{{Cite pmid|32917603}}</ref> Low-cost measurement of face mask efficacy for filtering expelled droplets during speech #MMPMID32917603 Fischer EP; Fischer MC; Grass D; Henrion I; Warren WS; Westman E Sci Adv 2020[Sep]; 6 (36): ä PMID32917603show ga Mandates for mask use in public during the recent coronavirus disease 2019 (COVID-19) pandemic, worsened by global shortage of commercial supplies, have led to widespread use of homemade masks and mask alternatives. It is assumed that wearing such masks reduces the likelihood for an infected person to spread the disease, but many of these mask designs have not been tested in practice. We have demonstrated a simple optical measurement method to evaluate the efficacy of masks to reduce the transmission of respiratory droplets during regular speech. In proof-of-principle studies, we compared a variety of commonly available mask types and observed that some mask types approach the performance of standard surgical masks, while some mask alternatives, such as neck gaiters or bandanas, offer very little protection. Our measurement setup is inexpensive and can be built and operated by nonexperts, allowing for rapid evaluation of mask performance during speech, sneezing, or coughing. |Betacoronavirus[MESH] |COVID-19[MESH] |Coronavirus Infections/*prevention & control[MESH] |Filtration/*statistics & numerical data[MESH] |Humans[MESH] |Masks/*statistics & numerical data[MESH] |Optical Imaging[MESH] |Pandemics/*prevention & control[MESH] |Pneumonia, Viral/*prevention & control[MESH] |Respiration[MESH] |SARS-CoV-2[MESH]Low-cost measurement of face mask efficacy for filtering expelled drop(epmc).pdf DeepDyve Pubget Overpricing