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发布时间: 2025-06-02 13:33:11北京青年报社官方账号
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  宜宾眼部线雕提升紧致图片   

Texas Southern University in Houston evacuated its campus on Wednesday due to a bomb threat received by the Houston Police Department directed at the university. The university announced on its social media channels that all classes are canceled for the rest of the day, and that all students, faculty and employees should evacuate campus. Houston Police said it received the threat via its emergency call center around 1:40 p.m. CT on Wednesday. As of late Wednesday afternoon, there have not been any confirmed bombs found on campus. Texas Southern is a public historically black university with an enrollment of nearly 10,000. 667

  宜宾眼部线雕提升紧致图片   

TAMPA — Wearing masks is one of the most important ways to prevent the spread of COVID-19 — and health experts say everyone should continue to care for their face coverings to ensure protection when in public.After wearing a mask for a few months, doctors say there are some clear, tell-tale signs that it is no longer working correctly."When the edges start to fray or if the pieces where they connect start to fall apart, or if they are visibly soiled, then you should really get a new mask," said Dr. Tracey Taylor, the associate dean of USF College of Nursing.Experts also say that if a mask no longer fits over the nose or doesn't have a close fit around the face or chin, it's time to get a new one."It's super important to make sure your mask is fitting appropriately, that it's not visibly soiled, that the edges aren't frayed and that the attachments to the ear loops or tie backs — whatever type you're wearing — is appropriately attached," Taylor said.For those who own cloth masks, experts say owners need to remember to wash them. Experts say washing cloth mask with detergent or soap is best and that they don't need to be washed with super hot water. Those who own cloth masks with filters should remove the filter and clean it separately.However, there's another option."You can put them in a paper bag and seal it up for a couple of days. That'll inactivate any virus that's on it," said Dr. Marissa Levine, a professor of public health practice at USF.After several months, experts say they have more information about which masks are effective in preventing the spread of COVID-19.Cloth masks are most effective when they have at least three layers of material or a spot to add a filter. They're typically the easiest for the general public to use because they're reusable, and doctors say the research shows they mostly prevent the spread of the virus.Although any face covering is better than none, some aren't as effective in preventing the spread of COVID-19.Experts say bandanas are very thin and don't offer the same type of protection as a mask.Doctors say any mask with a valve on it is completely ineffective because the valve allows virus-carrying particles to leak out.Popular neck gaiters that wearers can easily pull up and down don't provide a lot of protection for the wearer or those around them."If you find yourself with a single layer, you could use something like a paper towel inside there to add an extra layer if you need to," Levine said.Experts advise keeping two masks on hand in case one gets lost or breaks."There's no one thing that we do that will protect us to the highest level. It's a series of things," Levine said.This story was originally published by Larissa Scott on WFTS in Tampa, Florida. 2755

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TAMPA, Fla. — University of South Florida Professor Dr. Jay Wolfson and health experts around the world are studying the latest research project on the coronavirus."This thing gives us surprises almost every week. We learn something new, and it's usually unpleasant every week," said Wolfson.The new research is from Australia's National Science Agency, and it found the virus could survive and remain infectious on surfaces like glass, steel, and paper for up to 28 days."What they are concerned about, what we are all concerned about it, is if you have some viable virus on your fingers and you touch your eyes or you touch your nose or you touch your friend's eyes or nose, there's a greater risk of it being brought into the body if there's enough of it there," said Wolfson.But Dr. Thomas Unnasch, also with USF Health, says this study was done with perfect conditions for a virus to thrive."They put the virus under different surfaces and then preserve them in the dark at ideal temperatures and humidity. So it's not too surprising that under those ideal conditions, that it would last quite a bit longer than it would under normal conditions."While experts agree COVID-19 primarily spreads from person to person through droplets in the air, there is still more to understand about how it can transfer from objects or surfaces to people."People do have a proclivity to touch their face and their eyes, so if you are in a place that's not familiar to you and you are using things that are unfamiliar to you, just be careful," said Wolfson."Your own cell phone, if you are the only one using it, that's not a big deal. But door handles, faucet handles elevator buttons things like that. Wash your hands after you do that. That's a really good idea," said Unnasch.All of the experiments in this study were done in the dark. Research has shown direct sunlight can kill the virus.This story was first reported by Erik Waxler at WFTS in Tampa Bay, Florida. 1965

  

Statement from U.S. Secret Service on officer involved shooting: pic.twitter.com/vMP9ypuNh5— U.S. Secret Service (@SecretService) August 11, 2020 153

  

Surveys suggest a growing number of Americans are willing to get a COVID-19 vaccine, however the latest numbers from Gallup in mid-November show only 58 percent of those surveyed would get the vaccine.A former lawmaker is among those suggesting giving people a stimulus check in exchange for getting a COVID-19 vaccine.During an interview with CNBC, former Maryland Representative John Delaney suggested giving ,500 for getting immunized.“The faster we get 75 percent of this country vaccinated, the faster we end Covid and the sooner everything returns to normal,” Delaney said in an interview with CNBC.com.Survey data shows a growing political divide about whether or not to take the vaccine, and Delaney told CNBC.com there has to be an incentive for “people to really accelerate their thinking about taking the vaccine.”Delaney pointed out that while his plan would not force anyone to get vaccinated, there are already measures in the U.S. to encourage vaccination, including for children to attend school.While his proposal seems enticing, it faces some big hurdles.Sending people ,500 checks in exchange for vaccination could cost upward of 0 billion. By comparison, the round of stimulus checks sent to Americans earlier this year totaled more than 0 billion so far.Coronavirus relief spending is a hot topic in Congress, as Democrats and Republicans try to compromise and make an agreement before the end of the year. Democrats are backing a 0 billion starting point, while Republicans in the Senate say they want closer to 0 billion.Delaney said the checks don’t have to be ,500. He said the point is to create an incentive to increase how many people get vaccinated, because, in his opinion, once more people get vaccinated, “everything returns to normal, which means we don’t need any more programs (that Congress would create).”Delaney’s proposal comes following another similar idea from Robert Litan, a fellow at the Brookings Institute and was formerly in the Clinton administration. He has a proposal that would pay Americans ,000 to get vaccinated, a portion upfront, and another portion once a 70 percent vaccination threshold is reached. Health experts believe a 70 percent threshold is needed to help with herd immunity, and help protect those who are unable to be vaccinated."Unlike previous payments, this is stimulus tied to socially responsible behavior. So society is getting a benefit from handing out the money," Litan told Business Insider.A former top economic advisor to George W. Bush, N. Gregory Mankiw, has come out publicly in support of the idea, according to Business Insider.Former presidential candidate Andrew Yang tweeted his support of the idea. 2716

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