Results 21 to 30 of about 382,871 (240)

Can aerosols-generating dental, oral and maxillofacial, and orthopedic surgical procedures lead to disease transmission? An implication on the current COVID-19 pandemic

Frontiers in Oral Health, 2022
Various dental, maxillofacial, and orthopedic surgical procedures (DMOSP) have been known to produce bioaerosols, that can lead to the transmission of various infectious diseases.
Essam Ahmed Al-Moraissi, Amanjot Kaur, Frank Günther, Andreas Neff, Nikolaos Christidis   +4 more
doaj   +1 more source

Aerosol Concentrations and Fungal Communities Within Broiler Houses in Different Broiler Growth Stages in Summer

Frontiers in Veterinary Science, 2021
Fungal aerosols in broiler houses are important factors that can harm the health of human beings and broiler. To determine the composite characteristics and changes in fungal aerosols in broiler houses during different broiler growth stages in summer. We
Guozhong Chen, Guozhong Chen, Guozhong Chen, Di Ma, Di Ma, Qingrong Huang, Wenli Tang, Maolian Wei, Youzhi Li, Linlin Jiang, Linlin Jiang, Hongwei Zhu, Hongwei Zhu, Xin Yu, Xin Yu, Weibo Zheng, Weibo Zheng, Jianlong Zhang, Jianlong Zhang, Jianlong Zhang, Xingxiao Zhang, Xingxiao Zhang, Xingxiao Zhang   +22 more
doaj   +1 more source

3D printed devices and infrastructure for liquid sample delivery at the European XFEL

Journal of Synchrotron Radiation, 2022
The Sample Environment and Characterization (SEC) group of the European X-ray Free-Electron Laser (EuXFEL) develops sample delivery systems for the various scientific instruments, including systems for the injection of liquid samples that enable serial ...
Mohammad Vakili, Johan Bielecki, Juraj Knoška, Florian Otte, Huijong Han, Marco Kloos, Robin Schubert, Elisa Delmas, Grant Mills, Raphael de Wijn, Romain Letrun, Simon Dold, Richard Bean, Adam Round, Yoonhee Kim, Frederico A. Lima, Katerina Dörner, Joana Valerio, Michael Heymann, Adrian P. Mancuso, Joachim Schulz   +20 more
doaj   +1 more source

Chemical ageing and transformation of diffusivity in semi-solid multi-component organic aerosol particles [PDF]

, 2011
Recent experimental evidence underlines the importance of reduced diffusivity in amorphous semi-solid or glassy atmospheric aerosols. This paper investigates the impact of diffusivity on the ageing of multi-component reactive organic particles ...
Pfrang, Christian, Pöschl, U., Shiraiwa, M.   +2 more
core   +3 more sources

Nitric acid scavenging by mineral and biomass burning aerosols [PDF]

, 1998
The abundance of gas phase nitric acid in the upper troposphere is overestimated by global chemistry-transport models, especially during the spring and summer seasons.
Chatfield, R B, Dibb, Jack E., Jacobson, M Z, Lin, J S, Singh, H B, Tabazadeh, A, Talbot, R., Thakur, A N, Toon, O Brian   +8 more
core   +2 more sources

Seasonal characteristics of PM1, PM2.5, and PM10 over Varanasi during 2019–2020

Frontiers in Sustainable Cities, 2022
Particulate matter (PM) concentrations and aerosol optical depth (AOD) are measured and correlated simultaneously using a high-volume sampler and a MICROTOPS-II Sunphotometer, respectively.
Prashant Kumar Chauhan, Akhilesh Kumar, Vineet Pratap, Abhay Kumar Singh   +3 more
doaj   +1 more source

Cloud fraction estimation using random forest classifier on sky images [PDF]

Atmospheric Measurement Techniques
Cloud fraction (CF) is an integral aspect of weather and radiation forecasting, but real time monitoring of CF is still inaccurate, expensive and exclusive to commercial sky imagers. Traditional cloud segmentation methods, which often rely on empirically
S. K. Sarangi, C. Sarangi, C. Sarangi, N. Patel, B. L. Madhavan, S. S. Ningombam, B. Ravindra, M. V. Ratnam   +7 more
doaj   +1 more source

Droplets and aerosols: An artificial dichotomy in respiratory virus transmission

Health Science Reports, 2021
In the medical literature, three mutually non‐exclusive modes of pathogen transmission associated with respiratory droplets are usually identified: contact, droplet, and airborne (or aerosol) transmission.
Yannis Drossinos, Thomas P. Weber, Nikolaos I. Stilianakis   +2 more
doaj   +1 more source

Aerosols modification with H2O2 reduces airborne contamination by dental handpieces

Journal of Oral Microbiology, 2021
Objective: We designed an in vitro study to evaluate the efficiency of an 0.5 vol% hydrogen peroxide-based spray in reducing Coronavirus 229E spread during a conventional dental procedure. Methods: A class III cabinet-like chamber was custom-built, using
Andrei Cristian Ionescu, Eugenio Brambilla, Lamberto Manzoli, Giovanna Orsini, Valentina Gentili, Roberta Rizzo   +5 more
doaj   +1 more source

Barrier for Particle Dispersion Control During Mastoidectomy

International Archives of Otorhinolaryngology, 2021
Introduction The China Health Authority alerted the World Health Organization (WHO) of several cases of pneumonia, and the WHO has declared the novel coronavirus (COVID-19) a global pandemic. Mastoidectomy is a high-risk aerosol generating procedure with
Camila Rêgo Muniz, Carlos Felype Oliveira Pena, Marcio Ribeiro Studart da Fonseca, Marcos Rabelo de Freitas   +3 more
doaj   +1 more source