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Page 31 - வர்ஜீனியா தொழில்நுட்பம் பல்கலைக்கழகம் News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Գիտնականներն արդյունավետ միջոց են մշակել COVID-19-ի ախտանիշների դեմ | NEWS am Medicine - Ամենը առողջության եւ բժշկության մասին

Գիտնականներն արդյունավետ միջոց են մշակել COVID-19-ի ախտանիշների դեմ | NEWS am Medicine - Ամենը առողջության եւ բժշկության մասին
med.news.am - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from med.news.am Daily Mail and Mail on Sunday newspapers.

Is double-masking more effective against COVID-19? Here s what scientists says

The CDC currently recommends choosing a mask that has two or more layers of washable, breathable fabric and fits snugly, completely covering the nose and mouth. That s based on studies showing masks with multiple layers of fabric are more effective at reducing the emission and inhalation of virus particles.  Multiple layers of cloth with higher thread counts have demonstrated superior performance compared to single layers of cloth with lower thread counts, in some cases filtering nearly 50% of fine particles less than 1 micron, the CDC guidance says. Yet, some infectious disease experts are saying that adding an extra layer of protection makes sense. Double masking refers to wearing two cloth masks or a cloth one over a surgical mask.

Airline employees applaud new federal mask mandate

© Getty Images Airline and airport workers are praising a new rule that authorizes the Transportation Security Administration (TSA) to fine passengers who refuse to wear masks. Labor unions and airport administrators for months have been calling on the federal government to impose nationwide health policies for air travel. “Our union has been advocating for almost a year for a federal mask mandate in aviation. A federal mandate with public messaging and clear enforcement mechanisms for federal agencies like TSA will go far to keeping everyone safe,” Sara Nelson, president of the Association of Flight Attendants-CWA, which represents nearly 50,000 employees at 17 airlines, said in a statement Monday.

Study finds multiple layers of coffee filters do filter COVID-19 virus

Researchers studied the effectiveness of one, two and three layers of coffee filters. Author: Keely Chalmers (KGW) Updated: 9:22 AM PST January 29, 2021 PORTLAND, Ore. Search YouTube, you ll find all sorts of creative, and pretty impressive videos on how to make a face mask out of a coffee filter. It makes sense. It is a filter. But just how effective is it in filtering out those tiny coronavirus particles? It was a question researchers at Virginia Tech University wanted to answer. They conducted a study looking at the effectiveness of one, two and three layers of coffee filters. Dr. Richard Corsi, an air quality expert at Portland State University, followed the research.

Cotton and soybean providing nutrition for honeybees

Alaina Dismukes The first week of July is typically the first week of bloom in Virginia cotton, and the honeybees brought back around 4% of pollen from cotton within that week. Cotton and soybean provide valuable nutrition to pollinators during a critical time in high development for honeybees in the summer. Honeybees are suffering, in some cases, a pretty dramatic decline, but recent research shows that cotton and soybean provide valuable nutrition to pollinators throughout months when pollen is scarce. During the 2021 online Beltwide Cotton Conference, Sally Taylor, assistant professor of entomology at Virginia Tech University, presented research on how honeybees have forage opportunities from some row crops in the summer months.

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