Regarding masks, all the literature I've read stated that surgical type masks are designed to keep the wearer from spreading their disease to others by acting as a barrier to keep as many virus or germ filled water droplets contained as possible instead of being released into to the environment, it does nothing to prevent the wearer from inhaling any virus particles that could be in the air as there are too many gaps between the mask and wearer to form a good seal. One caveat, because surgical masks acts as an physical barrier, it does provide protection for the wearer in instances where they were in a position of contact with water droplets directly from an infected person, i.e., if an infected person is in close proximity and sneezed or coughed in your direction, a surgical mask will help in lowering the exposure to any viruses or germs contained in the water droplet that you might otherwise be directly projected into your eyes, nose, and/or mouth. If an infected person sneezed or coughed into the air in general, on the hand, any virus particle present will be mixed with the surrounding air particles after the water droplet has evaporated, waiting for an unfortunate individual to inhale this cocktail of foul air through the gaps in the the surgical mask.
Can Face Masks Protect You From Catching Coronavirus?
news.columbia.edu/[...]
Interim Guidance for the Use of Masks to Control Seasonal Influenza Virus Transmission
news.columbia.edu/[...]
Another type of mask in the headlines is the N95 mask, they are referred to as respirators. As the name implies, they work by acting as a filter filtering out 95% of dangerous particles in the air before reaching the respiratory tract. In order to for these to work effectively though, they must be form-fitted to achieved said tight seal. A drawback to N95 masks is that breathing becomes difficult after long periods of use because they restrict airflow. Exercising while wearing one is not recommended.
As a matter of policy, N95 masks do not work as well as they should because most non-healthcare workers do not follow proper procedures when using these masks, therefore it is much more effective to focus efforts on other disease preventing protocols such as washing hands.
Effectiveness of N95 respirators versus surgical masks in protecting health care workers from acute respiratory infection: a systematic review and meta-analysis
www.ncbi.nlm.nih.gov/pmc/articles/PMC4868605/
There is what the CDC recommends on how to prevent infection of the Coronavirus.
www.cdc.gov/coronavirus/about/prevention.html
As 'New China' turns 70, a look back at National Days past in Kunming
Posted byLet's hope the Chinese, both its people and the government, does not make the same mistake as Japan did in WWII, into thinking that Americans are too soft and lack the resolve to pursue its enemies. If nothing else, history has shown that the US have its share of vindictive, hate-filled people who love nothing more than a fight based on perceived slights, Any attack on America will not be easily forgotten or forgiven.
Snapshot: Kunming's first ever PechaKucha Night
Posted byIf you are not interested in their work or project, even 20 seconds is too long. If you are truly into what they are doing, you would love to hear every little nuance that would give you better insight.
From what I can gather, this event is meant to create a platform for people to showcase their work but because the audience might not be interested, you'd have to distill ideas into 20 second sound bites. So that begs the question, if they aren't interested in your project why would you bother pitching it to them? And as an audience member, why would you go to one of these presentations if you are not interested in what they are presenting? Anything worth doing is worth doing well, unless this is one of those "social" events where people can go and pretend they are more "cultured" than the rest of us. Then in that case, lets just go through the motions as quickly as possible so we can get to the drinking and socializing bit at the end.
Snapshot: Kunming's first ever PechaKucha Night
Posted byWe are now devolving into a culture of instant gratification, short attention spans and sound bites. Nothing is worth giving more than 20 seconds worth of discussion before moving on to the next topic. Ideas are now commoditized and pass around like fast food because we are no longer capable of in depth thought. Much like fast food, immediately after consumption it feel as if you are full, but in reality, nothing of real value was given. This is true of TED talks, it started well but soon became a money making scheme where anybody willing to pay the fee can give a "talk". Most talks given, however, are nothing more than filler that can be googled, nothing ground breaking. It has more value to the presenter for it adds a line to their list of "accomplishments" than the audience.
I'm sure this event is well meaning and has perceived value to those who participated but I wouldn't recommend patting yourself on the back for attending.
Please excuse the ramblings from this grumpy old geezer.
Beijing approves massive Changshui International Airport expansion
Posted byI'd tell ya but wouldn't want to go off topic. Suggest you do like wise.
Beijing approves massive Changshui International Airport expansion
Posted byI wonder how that someone got to Chinainthe first place, certainly wasn't by walking or bicycling. nor by ship. And unless there is a secret trans-Atlantic or trans-Pacific railroad, not by train either.
And what kind of renewable, non-environment harming energy he is using to fire up all those electronic gadgets he uses to go online.
Ya know, my pa had a sayin, don't shit where you eat and most certainly don't complain about The smoke if you want a BBQ rib.