The Wall Street Journal
· Why Are N95 Masks So Important? →
N95 masks are so called because they are a U.S. standard that requires masks to be able to filter out at least 95% of very small particles, including droplets containing the coronavirus.
· How to take care of your skin while wearing a mask →
Face coverings properly fashioned out of these materials might be an effective barrier to aerosol particles, Wu said, citing a study by the University of Chicago and Argonne National Laboratory.
· Masks to be worn as default, face shields allowed only for certain settings and groups like children aged 12 and below →
“For example, wearing a shield can help to protect one’s eyes from droplets that may contain virus particles, and can also prevent the mask from getting wet.
· Which kind of face mask is the best protection against coronavirus? →
One US study investigated which household materials best removed particles of 0.3-1.0 microns in diameter, the typical size of viruses and bacteria, and concluded that good options include vacuum cleaner bags, heavyweight “quilter’s cotton” or multiple layers of material.
· Solution to century-old math problem could predict transmission of infectious diseases →
In his paper, published in Physical Review X, Dr Luca Giuggioli from the Department of Engineering Mathematics at the University of Bristol describes how to analytically calculate the probability of occupation (in discrete time and discrete space) of a diffusing particle or entity in a confined space – something that until now was only possible computationally.
· Coronavirus: Lesser-known symptoms that could be linked to Covid-19 →
This suggests that SARS-CoV-2 can infect the conjunctiva and cause conjunctivitis, and virus particles are present in ocular secretions,” the American Academy of Ophthalmology said.
· Notre-Dame Cathedral renovations play catch-up as lockdown eases, square reopens →
The fire completely consumed the oak beams and more than 300 tons of lead panelling in the roof, spewing toxic lead particles into the air as they melted.
· Argonne researchers create active material out of microscopic spinning particles →
These so-called active materials contain small magnetic particles that self-organize into short chains of particles, or spinners, and form a lattice-like structure when a magnetic field is applied.
The Wall Street Journal
· Masks Are a Real Help In Disease Protection →
In fact, a surgical mask filters 78% to 97% of one-micron particles.