厦门听觉传导电动模型(浙江1/2标准模型) (今日更新中)

With home-court advantage taken out of the equation this year because of COVID-19, the NBA playoffs look nothing like they once did. And on Wednesday, the season took yet another dramatic turn with at least one team boycotting the championships.The Milwaukee Bucks boycotted their game to protest the shooting of Jacob Blake in Kenosha, Wisconsin. It raises the question: what does this mean for the current moment of racial reckoning the nation has found itself in?Dwight Lewis, an activist during the civil rights movement, says it's about more than one game or any sport in particular."Sometimes you have to do things to get attention and say, ‘I can’t take this anymore. I’m mad as hell and I’m not going to take it anymore,’" the now 72-year-old activist explained.For athletes and teams in the national spotlight, it's about using their platform to get the country to pay attention."If you don’t speak out now, what are people going to say about you? That’s what was great about what the Bucks did," he added.Professional athletes using their platforms to protest racial inequality is nothing new. The first time it happened was during the 1968 Olympics when two African American runners raised their fists during the national anthem to call attention to the civil rights campaign.Lewis says decades later professional athletes are still harnessing the power that comes with their position to help enact change and move the national dialogue on race forward."This is 2020. We’re no better. Racism is still as American as apple pie, unfortunately. So, what did we do to keep these people from not wanting to walk off the basketball court or the football field? What did we do?" 1690

With a coronavirus vaccine still months off, companies are rushing to test what may be the next best thing: drugs that deliver antibodies to fight the virus right away, without having to train the immune system to make them.Antibodies are proteins the body makes when an infection occurs; they attach to a virus and help it be eliminated. Vaccines work by tricking the body into thinking there’s an infection so it makes antibodies and remembers how to do that if the real bug turns up.But it can take a month or two after vaccination or infection for the most effective antibodies to form. The experimental drugs shortcut that process by giving concentrated versions of specific ones that worked best against the coronavirus in lab and animal tests.“A vaccine takes time to work, to force the development of antibodies. But when you give an antibody, you get immediate protection,” said University of North Carolina virologist Dr. Myron Cohen. “If we can generate them in large concentrations, in big vats in an antibody factory ... we can kind of bypass the immune system.”These drugs are believed to last for a month or more and could give quick, temporary immunity to people at high risk of infection, such as health workers and housemates of someone with COVID-19. If they proved effective and if a vaccine doesn’t materialize or protect as hoped, the drugs might eventually be considered for wider use, perhaps for teachers or other groups.They’re also being tested as treatments, to help the immune system and prevent severe symptoms or death.“The hope there is to target people who are in the first week of their illness and that we can treat them with the antibody and prevent them from getting sick,” said Dr. Marshall Lyon, an infectious disease specialist helping to test one such drug at Emory University in Atlanta.Having such a tool “would be a really momentous thing in our fight against COVID,” Cohen said.Vaccines are seen as a key to controlling the virus, which has been confirmed to have infected more than 20 million people worldwide and killed more than 738,000. Several companies are racing to develop vaccines, but the results of the large final tests needed to evaluate them are months away.The antibody drugs are “very promising” and, in contrast, could be available “fairly soon,” said Dr. Janet Woodcock, a U.S. Food and Drug Administration official who is leading government efforts to speed COVID-19 therapies. Key studies are underway and some answers should come by early fall.One company, Eli Lilly, has already started manufacturing its antibody drug, betting that studies now underway will give positive results.“Our goal is to get something out as soon as possible” and to have hundreds of thousands of doses ready by fall, said Lilly’s chief scientific officer, Dr. Daniel Skovronsky.Another company that developed an antibody drug cocktail against Ebola — Regeneron Pharmaceuticals Inc. — now is testing one for coronavirus.“The success with our Ebola program gives us some confidence that we can potentially do this again,” said Christos Kyratsous, a Regeneron microbiologist who helped lead that work.Regeneron’s drug uses two antibodies to enhance chances the drug will work even if the virus evolves to evade action by one.Lilly is testing two different, single-antibody drugs — one with the Canadian company AbCellera and another with a Chinese company, Junshi Biosciences. In July, Junshi said no safety concerns emerged in 40 healthy people who tried it and that larger studies were getting underway.Others working on antibody drugs include Amgen and Adaptive Biotechnologies. The Singapore biotech company Tychan Pte Ltd. also is testing an antibody drug and has similar products in development for Zika virus and yellow fever.“I’m cautiously optimistic” about the drugs, said the nation’s top infectious diseases expert, Dr. Anthony Fauci. “I’m heartened by the experience that we had with Ebola,” where the drugs proved effective.What could go wrong?— The antibodies may not reach all of the places in the body where they need to act, such as deep in the lungs. All the antibody drugs are given through an IV and must make their way through the bloodstream to wherever they’re needed.— The virus might mutate to avoid the antibody — the reason Regeneron is testing a two-antibody combo that binds to the virus in different places to help prevent its escape.Skovronsky said Lilly stuck with one antibody because manufacturing capacity would essentially be cut in half to make two, and “you will have less doses available.” If a single antibody works, “we can treat twice as many people,” he said.— The antibodies might not last long enough. If they fade within a month, it’s still OK for treatment since COVID-19 illness usually resolves in that time. But for prevention, it may not be practical to give infusions more often than every month or two.A San Francisco company, Vir Biotechnology Inc., says it has engineered antibodies to last longer than they usually do to avoid this problem. GlaxoSmithKline has invested 0 million in Vir to test them.Giving a higher dose also may help. If half of antibodies disappear after a month, “if you give twice as much, you will have two months’ protection,” Lilly’s Skovronsky said.— The big fear: Antibodies may do the opposite of what’s hoped and actually enhance the virus’s ability to get into cells or stimulate the immune system in a way that makes people sicker. It’s a theoretical concern that hasn’t been seen in testing so far, but large, definitive experiments are needed to prove safety.“As best as we can tell, the antibodies are helpful,” Lyon said.___Marilynn Marchione can be followed on Twitter: @MMarchioneAP___The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content. 5919

William "Bill" Barr, a former attorney general under President George H.W. Bush, is emerging as a consensus candidate to succeed Jeff Sessions as attorney general, two sources familiar with President Donald Trump's thinking tell CNN.A third source familiar with the process said if Trump offered the position to Barr, he would be willing to accept.Trump's consideration of a new attorney general comes during a critical time for special counsel Robert Mueller's investigation, of which the next Justice Department chief will inherit oversight. Barr, 68, has previously offered mixed opinions about the investigation, having praised Mueller but also publicly criticizing political donations made by several members of his team.The Washington Post first reported that Barr is the leading candidate. Sources cautioned to CNN, however, that Trump makes the final decision.Barr served as Mueller's boss when he was attorney general in the early 1990s and Mueller led the criminal division at the Justice Department.The former attorney general hasn't shied away from weighing in on Mueller's investigation. He expressed confidence in Mueller early on and suggested the investigation wouldn't devolve into a "witch hunt," but he also has shared some disappointment when asked by The Washington Post last year about the donations that some of Mueller's team members made to Democrats."In my view, prosecutors who make political contributions are identifying fairly strongly with a political party ... I would have liked to see him have more balance on this group," he said in July 2017.Barr also defended Trump's decision to fire former FBI Director James Comey, who was criticized for flouting Justice Department protocols when he announced in July 2016 that he wouldn't recommend charges against Hillary Clinton for mishandling classified info during her time as secretary of state."I think it is quite understandable that the administration would not want an FBI director who did not recognize established limits on his powers," Barr wrote in a Washington Post op-ed in May 2017. "It is telling that none of the president's critics are challenging the decision on the merits."The prospect of Barr taking over the Justice Department was well-received by some leading members of Congress in both parties Thursday.Senate Majority Whip John Cornyn, a Texas Republican who sits on the Judiciary Committee, called Barr an "interesting pick.""I think getting the next nominee confirmed is going to be a little bit of a challenge," he said. "(Barr) may be the kind of person who would be easier to confirm."Sen. Dianne Feinstein, the top Democrat on the Judiciary Committee, said she was unfamiliar with Barr's views but encouraged by a suggestion that he was an "establishment" Republican."I would hope (Trump) would pick someone who would be by the book and not by the politics," Feinstein said.CNN reported late last month that Barr was among several potential candidates to succeed Sessions.At the time, CNN reported that Trump was considering tapping the assistant attorney general for the Justice Department's Antitrust Division, Makan Delrahim, to succeed acting Attorney General Matthew Whitaker. At the time, White House officials said Trump was in no rush to nominate a permanent successor to Sessions, whom he fired November 7. Instead, Trump was telling confidantes he was happy to leave Whitaker in place while he mulled his choices.Other names that have been floated as possible replacements for Sessions include Rep. John Ratcliffe of Texas, a former federal prosecutor, as well John Michael Luttig, a former US Court of Appeals judge, Justice Department official and current general counsel at Boeing. One former White House official said late last month that Luttig was a strong possibility, though he had not met with the President. A second source close to Luttig told CNN he was considered for the role of FBI director after Comey was fired in spring 2017.The-CNN-Wire 3983

When you stay at a hotel, you wouldn't think twice about having things like smoke detectors or fire extinguishers. But what about an Airbnb? New findings out suggest many Airbnb venues in the United States may be falling short.Monica Shaffer and her husband designed her mother-in-law basement to help guests feel right at home when using Airbnb."They have a private bathroom with their own walk-in shower," Shaffer said.But most importantly, she designed it to keep them safe, if there were ever a fire."They can get out to this door if they need to," Shaffer said. "If it's an emergency fire in this room we also keep a fire extinguisher on hand in the room. It's right down here. And fire alarm as is to be expected. And there was a carbon monoxide monitor too over in that quarter. If there's ever any concern for that."When asked why Shaffer decided to undertake safety precautions, "Well I think it's just a standard expectation," Shaffer answered.Unfortunately all of the attention and care Shaffer takes, may not be as standard as you think at other Airbnb locations. New findings out from the Relevant Journal show only 57.5 percent of Airbnb venues have carbon monoxide alarms, 42.2 percent have fire extinguishers, and 36 percent have first aid kits.The results surprised Shaffer. Most Airbnbs are in private homes, and although some states have standards for rental properties, national fire safety requirements don't usually apply. Although Airbnb encourages hosts to install fire safety equipment, it doesn't require them to provide proof. Researchers hope this information will change that."You know it's having those safety precautions in place that make you feel like you're at home," Shaffer said. "And Airbnb is about staying in people's homes and feeling at home."Airbnb responded to the study with this statement:“At Airbnb, safety is our priority. All hosts must certify that they follow all local laws and regulations. We run home safety workshops with local fire and EMS services all over the world, making sure our hosts have access to the best information in order to keep their guests, their homes and themselves safe. Every listing on Airbnb clearly states the specific safety amenities it has, including smoke and CO detectors, fire extinguishers, and first aid kits, so guests can look first and then decide whether that home, tree-house, yurt, or igloo is the one they want to book or not. In addition, every home in Airbnb's Plus Collection [airbnb.com] must have a smoke and CO detector in order to even be included. The study itself says it has not undergone any ethical review, it used data from three years before Airbnb Plus even debuted, and it looks to be designed to help an incumbent industry who has its own fire safety issues that need to be addressed.“We believe more work needs to be done across the board throughout the travel and tourism industry. According to the US Fire Administration [usfa.fema.gov] there are an estimated 3,900 hotel and motel fires each year that cause 15 deaths, 150 injuries and million in property loss. Even though there have been a number of tragic high profile hotel CO poisoning incidents, only 14 states [ncsl.org] require CO alarms in hotels by statute. Sadly, only 41% [census.gov] of all homes in the US even reported having working CO detectors. Whether a home is listed on Airbnb or not, all homes and hotel rooms should have smoke and CO detectors, fire extinguishers and first aid kits. At Airbnb we give out free smoke and CO detectors [airbnb.com] to each and every host who wants one. We have been doing this for the last three years.“We will reach out to the authors of the study, as we would like to work with them to increase awareness of safety measures for all homeowners, again, whether they are Airbnb hosts or not -- and transparency is key, so we will continue to ensure our guests know exactly what safety features their Airbnb has before they book it." 4023

Winston-Salem, NC (WGHP) -- Two women were arrested on child abuse charges Tuesday, according to a news release from Winston-Salem police in North Carolina.Michaela Pearson and Candice Little are each charged with felony child abuse and three counts of contributing to the delinquency of a minor.Officers received numerous reports of a Facebook video showing multiple young children being given what appeared to be an illegal substance by two women.The children were 2 years old, 3 years old and 18 months old, according to arrest warrants. 548

来源：资阳报