Нарушения на выборах в Подмосковье 7 сентябряНачались выборы в Московской области. Граждане могут сделать свой выбор с 6 по 8 сентября. Подмосковные коммунисты зафиксировали нарушения на избирательных участках в городских округах региона 7 сентября
( ... )
Да нет, в этом она тоже не дура. Внутренняя - это, повсей видимости, просто каркасс, благодаря которому основная не липнет к губам и ноздрям, плюс он создает большую щель выше над переносицей. Думаю, что в этом дышится свободно.
Насчет "имеет хорошую степень защиты", брехня это, давно известно:
"Mark Loeb, M.D., M.Sc., from McMaster University, Hamilton, Ontario, Canada, and colleagues conducted a randomized controlled trial of 446 nurses in eight Ontario hospitals to compare the surgical mask with the N95 respirator in protecting health care workers against influenza. The nurses were randomized into two groups: 225 were assigned to receive surgical masks and 221 were assigned to receive the fitted N95 respirator which they were to wear when caring for patients with febrile (fever) respiratory illness. The primary outcome of the study was laboratory-confirmed influenza. Effectiveness of the surgical mask was assessed as non-inferiority of the surgical mask compared with the N95 respirator.
Between September 23, 2008 and December 8, 2008, "influenza infection occurred in 50 nurses (23.6 percent) in the surgical mask group and in 48 (22.9 percent) in the N95 respirator group " Reply
Comments 30
Дизлайков в 4 раза больше.
Reply
Reply
( ... )
Reply
Reply
(The comment has been removed)
( ... )
Reply
Reply
Reply
Reply
Насчет "имеет хорошую степень защиты", брехня это, давно известно:
"Mark Loeb, M.D., M.Sc., from McMaster University, Hamilton, Ontario, Canada, and colleagues conducted a randomized controlled trial of 446 nurses in eight Ontario hospitals to compare the surgical mask with the N95 respirator in protecting health care workers against influenza. The nurses were randomized into two groups: 225 were assigned to receive surgical masks and 221 were assigned to receive the fitted N95 respirator which they were to wear when caring for patients with febrile (fever) respiratory illness. The primary outcome of the study was laboratory-confirmed influenza. Effectiveness of the surgical mask was assessed as non-inferiority of the surgical mask compared with the N95 respirator.
Between September 23, 2008 and December 8, 2008, "influenza infection occurred in 50 nurses (23.6 percent) in the surgical mask group and in 48 (22.9 percent) in the N95 respirator group " Reply
Leave a comment