蚌埠控制出血手臂模型(四川60CM 男性针灸模型解剖（中文、英代）) (今日更新中)

WINTER HAVEN, Fla. — Florida Gov. Ron DeSantis unveiled a bill Monday aimed at shutting down protests on roadways and increasing penalties for those that threaten the safety of law enforcement officers.Speaking at the Polk County Sheriff's Office on Monday, DeSantis unveiled the Combating Violence, Disorder, and Looting and Law Enforcement Protection Act, which needs to be voted on by the state Legislature."Recently in our country we have seen attacks on law enforcement," DeSantis said. "We've seen disorder and tumult in many cities across the country."Calling it the "boldest and most comprehensive piece of legislation" of its kind in the country, DeSantis said, if approved, the bill would make it a third-degree felony for those that take part in a violent or disorderly assembly.In addition, protesters could be charged with a felony if they "incapacitate" roadways. The bill would also says that drivers are not liable "for injury or death caused if fleeing for safety from a mob.""We've seen people take over interstates. That is absolutely hazardous, it's not fair to motorists who may get caught up in that," DeSantis said. 1146

With news of two highly effective COVID-19 vaccines on the horizon, health officials and scientists are giving us new insight into how we could gain herd immunity."If we think of the population as a single group of people with all similar risks and susceptibilities and behaviors, we need 60% of people to be immune, meaning that not only they don’t get sick, but also they don't pass on the virus to other people," says Dr. Stuart Ray, an infectious disease professor and herd immunity expert at Johns Hopkins University.Dr. Ray says achieving herd immunity with the help of a COVID-19 vaccine would mean enough people would either get the vaccine or already have recovered from the virus and be immune to help stop the spread of the virus."It's a little bit like this notion that if you’re going to pass on a message from a lot of people in a group, they have to speak the same language. And the more people don't speak the language, the harder it's going to be to pass that message and there’s a threshold at which the message just gets stopped," says Dr. Ray.Still, it would take a certain number of people to get the vaccine and have that immunity last in order to reach herd immunity. Stanford University's Dr. Bali Pulendran hopes that we can achieve herd immunity, even though there are a certain number of people who are still hesitant to take the vaccine."I think we should remember that a vaccine that is 95% effective is only effective if the majority of people in a population take it. If only half the population or only 60% of the population take it, then we are unlikely to have achieved the level of herd immunity that you need for curbing the disease," says Dr. Pulendran.And if the new COVID-19 vaccine requires two doses, how crucial will it be to make sure people receive that second round of immunization?Asked whether follow up will be a concern, Dr. Ray says, "I think it is a possible concern. We’re going to do a lot of learning. So, one of the things we’ve learned is that some vaccines we thought you needed multiple doses, one dose works pretty well."Doctors say research will be ongoing on the vaccine and the virus itself to ensure people will be protected as much as possible, because so many are hopeful for an end to COVID-19. 2268

What started as a simple gesture of kindness during the lunch hour resulted in more than 900 cars “paying it forward” over the course of over two and a half days at a Minnesota Dairy Queen. Customers in the drive thru continued to pay for the order of the car behind them.According to the Brainerd, Minnesota, Dairy Queen, the chain started around lunch time on December 3. By the end of the first day, 280 cars participated by the close of business.December 4 started with paid forward from the night before, and it went from there. More than 500 cars in the drive thru paid it forward on December 4. The streak continued through December 5."It makes people feel good. Our whole crew was pumped about it, let's keep it going, our fans, we had people come here just because they heard about it and wanted to be a part of it,” store assistant manager Sandra Quam told WCCO. 884

With its low air pressure, Hurricane Michael unofficially sits as the third-strongest landfalling hurricane to strike the United States. Having such a tremendously low air pressure typically causes storms to have strong winds, and Michael was no exception. Hurricane Hunters from the Air Force and NOAA estimated Michael's lowest pressure was 919 MB at landfall. The only two hurricanes with a lower pressure at landfall to hit the United States were the Labor Day Hurricane of 1935 and Camille of 1969.Also based on estimates, Michael had top winds of 155 MPH, which is just below Category 5 status. Based on top winds speeds, Michael was tied for the sixth-strongest landfalling hurricane in US history, tied with Hurricane Maria in 2017 and "Guam" in 1900. In terms of air pressure, Michael was 1 MB stronger than Katrina in 2005 and Maria in 2017 at landfall, and 3 MBs stronger than Andrew of 1992. Michael's top winds at landfall were well ahead of Katrina's top winds at landfall of 130 MPH, on par with Maria's top winds at landfall of 155 MPH, but below Andrew's top winds of 165 MPH.But in the immediate aftermath of Andrew, it was declared a Category 4 hurricane at landfall. It was not until years later when the National Hurricane Center concluded that winds in Andrew were greater than 157 MPH, marking the only Category 5 hurricane to strike the US since Camille in 1969. Like Andrew, Michael continued to strengthen all the way until landfall. In just three days, the storm went from a tropical storm to a high-end Category 4 hurricane. Other reasons Micheal will be notable:- Michael was just the sixth hurricane of at least Category 4 strength to hit Florida since 1950.  1752

When astronaut Victor Glover climbed aboard the International Space Station early Tuesday morning, he became the first Black astronaut arriving for a long-term stay.Glover, along with his fellow SpaceX Crew Dragon capsule crewmates, will stay on the ISS for six months.A handful of Black astronauts have visited the orbiting lab during space shuttle missions, their stays were a few weeks. More than 300 astronauts from NASA have reached space to date, and Glover is the 15th Black astronaut to do so, according to the New York Times.Glover was selected as an astronaut in 2013, at the time he was serving as a Legislative Fellow in the United States Senate, according to NASA.He is now the pilot and second-in-command on the Crew-1 SpaceX Crew Dragon capsule, named Resilience. While onboard the ISS, he will serve as the Flight Engineer. 847

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