
There is one hole on the front side of the box that the person speaks through and the cell phone is placed in the hole on the back side and records the light that gets spattered by the respiratory droplets. The droplets are counted using a simple algorithm.
The test is carried out with the person first not wearing a mask and then wearing a mask in order to record the difference in particles measured.
Overall they tested 14 different types of mask or mask material including an N95, which is used by healthcare workers and a control experiment with no mask (see Exhibit 1).
The data showed that N95 was the most effective (see exhibit 2 below), followed by the three-layer surgical mask and then the homemade cotton masks.
Neck fleeces, bandanas and knitted masks did not perform very well. In fact, the fleece allows for more particles to be measured than someone who was not wearing a mask.
Exhibit 2 below shows the results of the different types of masks and mask materials that were tested and their relative particle count out of 100%. The lower the % the less amount of particles observed. Note the unexpected effect of Fleece masks.
The message here is clear. People should be encouraged to wear masks, but they need to be wearing the right type of mask.
This is not just a technology and healthcare testing story; it also touches usefully on current social media trends. Covid-19 has created a greater and more significant reliance on social media platforms as a way to diffuse information. People have been posting, governments are using Facebook for Covid-19 alerts and track and trace apps are soon to be the norm.
This immediate and perhaps even excessive flow of information is good in many ways but also has its downfalls.
Whilst it is difficult for governments to regulate these home businesses and ensure that they are producing masks to the right standards, individuals may well start taking studies such as this one into consideration when it comes to their safety. This is a relatively rare example where government intervention in a market to enforce comparatively labelling or example would be very positive, prima facie.
What these entrepreneurs, start-ups and smaller companies can do for their part is make sure they show investors they are carrying out their business activities in the right way. For small and mid-cap companies this would mean incorporating an ESG policy into their core business operations.
As individuals and retail investors become more environmentally conscious, they are also interested in the social and governance policies of the companies they consider as investment candidates. Having an ESG policy opens up a lot more opportunities for small and mid-cap companies and makes them more attractive to investors.Stories from 2016 and 2018.

* Some in the Rada are very rich, and people are informed about it by media. Such things would never be allowed to be published in Russia.
* Guess which country in Europe have more corruption than Ukraine, according to the Corruption Perceptions Index? Russia
* Ukraine has a neo-Nazi problem? No it doesn't. The only open neo-Nazi party can't even get enough voters to get representation in the Rada. Contrast that Russia's liberal-democrat party LDPR that was neither liberal nor espoused any democratic values. Led by Vladimir Zhirinovsky an openly racist neo-Eurasianist, a movement that is quite close to fascism.  Nazism.The American Floral Endowment (AFE) is excited to announce the celebration of its 60th anniversary in 2021. AFE is a charitable organization supporting floral and horticulture advances and growth through scientific research, scholarship and internship programs, and educational grant funding to support and provide for all segments of the industry.
AFE will kick off a full year of success stories, acknowledgments, and events, giving special recognition to those who have financially supported the Endowment, benefitted from funded programs, and volunteered their time and talents toward its 60 years of success.
The Endowment is currently funding 12 research projects and over 30 annual scholarships totaling over $800,000 in research initiatives, educational grants, scholarships, and internships. Every donation helps support these important programs now and into the future.
Says Laura Shinall, AFE’s Board Chairman, “An organization, no matter how well designed, is only as good as the people who collectively contribute toward its goals. During this landmark year, we’d like to invite the entire industry to join us as we celebrate the Endowment’s accomplishments. We also invite everyone to contribute in order to help us continue the good work we started 60 years ago!”
For 2021, in honor of the 60th anniversary, the AFE Board has established a new fundraising initiative, calling on all industry members to make an annual pledge of $60 per month/year to help support the important programs that are benefitting so many. “For the cost of a modest floral arrangement, every industry member has the opportunity to really make a difference,” says Shinall. Your charitable donation supports ongoing floral industry programs and is fully tax-deductible.
For more information
American Floral Endowment
+1 (703) 838-5211
SEATTLE (AP) —.
"I think we're all excited to play, knowing we've got some work to do this week," Washington coach Chris Petersen said.
Eason's last pass came during mop-up duty in October 2017, three completions against Vanderbilt. It's been a long stretch of watching and waiting and hoping for another chance to start.
It almost didn't happen. Eason was pushed throughout spring practice and into fall camp by Jake Haener before finally being named the starter last week. Haener left the program and may have relieved some of Eason's pressure. There's no one waiting if Eason falters.
"Things are a little bit more clear-cut, in terms of you've got a pecking order going forward," Petersen said.
While the Huskies are opening with an FCS opponent this is not a soft landing.
Eastern Washington reached the national championship game last year before falling to North Dakota State. The Eagles return only nine starters but bring back quarterback Eric Barriere. He took over midseason and led the Eagles to the title game.
The Eagles have made life miserable in their previous two games against the Huskies, losing 30-27 in 2011 and 59-52 in 2014 in Petersen's first home game at Washington.
"We will be in adverse situations against Washington — I can guarantee you that," Eastern Washington coach Aaron Best said. "Hopefully we have taken a step forward to be ready for those adverse situations, and to come out of those situations knowing we can make a positive out of a negative."
Here's what else to watch when the Huskies and Eagles play for the third time:
NEW BACKFIELD: Eason isn't the only new face in Washington's backfield. Washington must replace Myles Gaskin, the school's all-time rushing leader. Salvon Ahmed is likely to get the bulk of the carries with Sean McGrew also in the mix. Ahmed rushed for 608 yards and averaged 5.8 last year.
BARRIERE'S TEAM: Barriere came on last year after Gage Gubrud injured a toe. He led the Eagles for the final 10 games, throwing for 2,450 yards and 24 touchdowns. His best game came in the national semifinals against Maine when he passed for 352 yards and seven touchdowns. Barriere could also challenge the Huskies with his legs. He rushed for 613 yards and eight TDs last season and twice nearly broke the 100 yards on the ground.
SECONDARY CONCERN: Washington will be breaking in four new starters in the secondary, with Myles Bryant the only returning starter. But no drop off is expected. The Huskies are high on the potential of Elijah Molden, Kyler Gordon, Keith Taylor and freshman Cam Williams joining Bryant in the secondary. The group could end up being better last year's secondary, which included draft picks Byron Murphy, Taylor Rapp and Jordan Miller.
HOME SWEET HOME: This is the start of three straight home games for Washington and four of the first five. The Huskies jump into conference play next week, hosting California before facing Hawaii and closing out September with a home matchup against Southern California.
Why is that important? The Huskies have the fourth-longest home winning streak in the country at 14 straight.
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More AP college football: andHRW calls for probe of Chechen exile's killing
MOSCOW A human rights group is calling on Russian and Austrian authorities to investigate the slaying of a Chechen man who claimed the Kremlin-backed leader of the war-torn Russian republic personally tortured him.
Umar Israilov, a former bodyguard of Chechen President Ramzan Kadyrov, fled to Austria in 2003 and was gunned down in Vienna on Tuesday.
Tatyana Lokshina of the Moscow office of Human Rights Watch said Friday that an "urgent and detailed" investigation is needed to bring Israilov's killers to justice. She also called on authorities to ensure safety of Israilov's pregnant wife and three children, who remain in Austria.
The Vienna public prosecutor's office said Thursday it had no proof that Israilov was killed by a hit man or that the killing was political.A leading psychologist who was working up to seven days a week killed himself after becoming overwhelmed by mental illness, an inquest heard.
John McGovern, 62, suffered from bouts of insomnia and irrational thoughts because of his heavy workload and eventually became worried that he was failing his own patients.
In July he told his wife that he was going to do some administrative work before taking