穿戴式四肢止血训练套件购买长沙种植练习模型,南阳人体呼吸运动电动模型,西藏脑脊液循环电动模型,海口高级手臂血压测量训练模型,一倍大恒牙带底座价格,山东SF型教学模型,海口骨骼肌超微结构模型

With millions of Americans getting tested for COVID-19 every single day, some are struggling with long waits for results.But now, researchers say there’s a much easier and faster way to test for the virus, and its right under your nose.“You scratch it, smell it, and then you have a choice of these different windows and you pick which one,” said Derek Toomre, Ph.D., a professor at Yale University School of Medicine.Toomre is part of U-Smell-It, a team that created a scratch-and-sniff app to help determine if someone has COVID-19 all through the sense of smell.“It's going to see how good your sense of smell is and if you do really well, you’ll pass,” Toomre said. “And if you don’t, it will say, ‘hey, you got something up.’”Despite being less accurate than a COVID-19 diagnostic test, this product is much faster and less costly. With results available in less than a minute and the cards costing 50 cents a pop, scientists say this smell app could outperform traditional tests at a fraction of the price.“We’re all familiar with the idea of testing people for fever as a way of finding people who have COVID,” said Roy Parker, Ph.D. a biochemistry professor at the University of Colorado, Boulder. “But that hasn’t worked very well.”Parker says with only about 20% of people with COVID-19 getting a fever, compared to 80% of people with COVID-19 reporting a loss a smell, a smell test is a much better indicator of COVID-19 infection than a temperature check.“It would make a big difference because you would identify people who have COVID, but they have such mild symptoms that they don’t know it and they’re out walking around potentially infecting other people and their family,” Park said.While commercially available, U-Smell-It is now looking for emergency FDA approval with the goal of getting their scratch-and-sniff cards into people’s hands and under their noses as quick as possible.“I can see people saying, ‘hey, this is not serious,’ and that’s fine, don’t take it serious,” Toomre said. “Let’s just try to do it and see if it works. And if you can’t smell that test and it’s saying, ‘hey, there’s something up’ well, you know, you should isolate and check out.” 2192

WIMAUMA, Fla. — A Florida deputy surprised a mother with new car seats instead of issuing her a ticket.Hillsborough County Deputy Jacky Nguyen was running traffic enforcement when he pulled over a mother for a minor traffic violation."As I approached the car, I saw two children in the backseat. They were without a car seat and looked to be young," said Deputy Nguyen.The deputy issued the mother a warning for the traffic violation but noticed her children, ages 3 and 5, were not properly restrained in the backseat."Just through conversation, I realized she may have been through some financial difficulties, She mentioned car seats are quite expensive, which they are," said Nguyen.Nguyen has a 5-year-old son himself. 731

WISCONSIN — An update on the expected re-entry of China's old Tiangong-1 space station has been announced.The space station was initially launched in September 2011. An official Chinese statement declared that Tiangong-1 terminated its data service on March 21, 2016. Since the Chinese government has lost control of the station, it's hard to predict where and when it will fall.The European Space Agency predicts the space station will fall back to Earth between March 30 and April 6, while research organization Aerospace predicts a re-entry on April 1, give or take 4 days.Aerospace says it is much easier to predict a re-entry time than a location. This explains the wide scope of possible re-entry zones, which both Aerospace and other organizations predict will be between 43 degrees North and 43 degrees South latitudes. 855

WEST PALM BEACH, Fla. — President Donald Trump and First Lady Melania Trump arrived at Palm Beach International Airport Wednesday evening to spend the final Christmas of his presidency at Mar-a-Lago.The Federal Aviation Administration placed temporary flight restrictions around Mar-a-Lago's airspace on Tuesday and the Town of Palm Beach has placed checkpoints and closed roads around Mar-a-Lago. Those closures will be in effect through Sunday, Jan. 3, 2021.The Trumps traditionally attend a Christmas service at Bethesda By The Sea in Palm Beach, but this year the church will be holding services virtually. 618

WILMINGTON, Del. — President-elect Joe Biden fractured his foot while playing with one of his dogs, according to the former vice president's doctor.Biden's office says he suffered the injury on Saturday and visited an orthopedist in Newark, Delaware, for an examination Sunday afternoon.A subsequent CT scan “confirmed hairline (small) fractures of President-elect Biden’s lateral and intermediate cuneiform bones, which are in the mid-foot,” according to a statement from his doctor, Kevin O’Connor.O’Connor says Biden will likely be wearing a walking boot for several weeks as his foot heals.The Associated Press reports that Biden was injured while playing with Major, one of his two dogs. The future first family has another dog, Champ, and they say they plan to also get bring a cat into the White House. 817