徐州奥林巴斯肠镜检查一次多少钱(徐州怀孕多久做四维彩超排畸) (今日更新中)

Can you imagine a pile of trash twice the size of Texas? That's what's floating in the Pacific Ocean right now.A group started an ambitious project to clean it up.Boyan Slat, founder of The Ocean Cleanup, has waited five years to see his idea put into action. That idea consists of a 2,000-foot long barrier, with a 10-foot skirt below that’ll help get plastic out of the ocean.“2,000 feet is a pretty big clean up system, and just imagining that the future one will probably be you know maybe twice as large,” says Slat.It's work starts at the Great Pacific Garbage Patch--an area between California and Hawaii--with a pile of trash three times the size of France.  “You go out there, it's all blue. The thing is you're all miles away from any human activity and you start to see like objects that you can see in your kitchen,” says Laurent Lebreton, lead oceanographer. “So, it's just very striking like you wouldn't expect.”The system will corral the plastic floating on the surface, so fish and other ocean life can swim underneath. Then, smaller boats take the plastic back to shore for recycling. The Ocean Cleanup says it can extract 50 percent of the plastic in the patch every five years.  “That's a huge goal,” says Dr. Mikki McColb-Kobza, with Ocean First Institute. “If they are able to do that, I think that is a really big dent into the problem.”Dr. McColb-Kobza says the system is meeting an unaddressed need.  “There really haven't been a lot of other projects trying to go out and bring trash bag to try and figure out a way to bring it back,” he says.  Still, some say the system creates a false sense of security, and more focus should be placed on keeping plastic out of the ocean to begin with.  But Dr. McColb-Kobza says the project is a great way to get that conversation started.  “Really the key is not only to clean up what is there, but it's to think about why you know do we live in this plastic throw a way society.”   1990

CHICAGO (AP) — President-elect Joe Biden is considering former Chicago Mayor Rahm Emanuel to serve as his transportation secretary.Biden's pick to lead the Transportation Department is not believed to be imminent, and Emanuel is among multiple candidates in the running for the Cabinet position. That's according to people familiar with the matter who spoke on the condition of anonymity to discuss the private deliberations.During his 8-year tenure as mayor, Emanuel is credited with fixing Chicago’s ragged public transportation system, overhauling O'Hare International Airport and Midway International Airport, and making the city a bicycle-friendly city, the Associated Press reported.Biden and Emanuel are no strangers to each other. Before becoming mayor of Chicago, Emanuel served as former President Barack Obama's first White House chief of staff.Emanuel is a substantial and somewhat divisive figure in Democratic Party politics.Some party progressives are critical of Emanuel's handling of the 2018 police shooting death of Black teenager Laquan McDonald by a white officer when Emanuel was mayor. 1116

CHARLOTTE, N.C. (AP) — Jimmie Johnson is the latest NASCAR superstar to climb out of his car, with the seven-time champion announcing Wednesday that 2020 will be his final season of full-time racing.The winningest driver of his era will have a 19th season in the No. 48 Chevrolet and once again chase a record eighth championship. Johnson made the announcement in a video on social media.“I am so thankful for 18 incredible years of racing in NASCAR,” Johnson said in the black-and-white video comprised of highlights from his career. “This sport has been good to me and allowed me to do something I truly love. I showed up chasing a dream and achieved more than I thought possible. I am looking forward to next season and celebrating what will be my last year as a full-time Cup driver. I know what this team is capable of and I hope 2020 is one of the best yet.”#Chasing8 one final time pic.twitter.com/ZoldabKy9M— Jimmie Johnson (@JimmieJohnson) November 20, 2019 Johnson joins an exodus of popular drivers that began when Jeff Gordon retired after the 2015 season. Tony Stewart, Dale Earnhardt Jr, Carl Edwards, Matt Kenseth, Danica Patrick and Jamie McMurray are among those who followed Gordon.Johnson, whose social media post carried the hash tag “Chasing8 one final time,” scheduled a Thursday news conference at Hendrick Motorsports to discuss his decision. It will be a familiar farewell scene for the team since both Gordon and Earnhardt were Hendrick drivers.Johnson had two years remaining on his contract when new sponsor Ally signed on before this year to replace Lowe’s, which had sponsored Johnson from his 2001 debut through 2018. Ally last month announced a three-year extension to sponsor the No. 48, but Johnson’s future was not tied to the renewal through 2023.“Jimmie Johnson is a legend in racing, the epitome of class and the ultimate representative of our brand,” said Andrea Brimmer, chief marketing officer at Ally. “We are proud that Jimmie will finish his remarkable NASCAR driving career with Ally as his primary sponsor.”Johnson has 83 career victories, tied with Cale Yarborough for sixth all-time. The California native’s seven titles are tied with Richard Petty and Dale Earnhardt for most in the Cup Series.The 44-year-old Johnson has been in a two-year slump and last won a race in 2017. He had two different crew chief changes this season and missed the playoffs for the first time since the format began in 2004.Johnson finished 18th in the final standings and has just five top-five finishes the last two years. He won his seventh title in 2016.Johnson has driven for Rick Hendrick his entire Cup career and set a NASCAR record in winning five consecutive titles from 2006 through 2010, an accomplishment that earned him Associated Press Male Athlete of the Year after his fifth crown.All 83 of Johnson’s wins have come in the No. 48 and include two Daytona 500s, four victories at Indianapolis Motor Speedway, a record 11 wins at Dover International Speedway, nine at Martinsville Speedway and eight at Charlotte Motor Speedway. 3077

CHICAGO, Ill. – In 2016, some 33 million ballots were cast by mail, about one quarter of all votes cast. With pandemic protocols and precautions in place, experts estimate a record-breaking number of mail-in votes this election cycle.Voting by mail has been in place for more than 150 years – since the Civil War.“It's become so common in the United States that since 2010, about a quarter of the electorate has voted by mail in federal elections,” said Lawrence Norden, director of the Election Reform Program at the non-partisan Brennan Center for Justice.Some states have what’s known as a universal vote-by-mail system, which means they mail ballots to all their voters. But in most states, voters must request an absentee ballot.“Most of them have made exceptions for 2020, because of COVID and so what we have left is only a handful of states where you need an excuse to vote by mail,” said Norden.According to the National Conference of State Legislatures, normally 34 states and Washington, D.C. allow no-excuse absentee/mailed ballot voting. Those include: Alaska, Arizona, California, Colorado, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Iowa, Kansas, Maine, Maryland, Michigan, Minnesota, Montana, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Dakota, Utah, Vermont, Virginia, Washington, Wisconsin, and Wyoming.Five automatically mail ballots to voters: Colorado, Hawaii, Oregon, Utah, and Washington. And specifically, for 2020, at least four more have done the same: California, New Jersey, Nevada, and Vermont.For months, President Donald Trump has claiming that mail-in voting leads to mass fraud.“The mailed ballots are corrupt, in my opinion. And they collect them, and they get people to go in and sign them. And then they — they’re forgeries in many cases. It’s a horrible thing,” he said to reporters in April.Experts say that’s not true. While there have been a few examples of fraud committed in mail voting, in modern history, studies indicate it’s not common at all.“The chances of somebody committing fraud in mail voting is about the same as somebody getting struck by lightning,” said Norden. “It's extremely rare.”Rejection is more common.According to the Brennan Center, during the midterm elections, nationwide more than 430,000 mailed ballots were rejected due to delays, minor defects, and voter errors. In some states, rejected ballots affected minorities at higher rates than white voters.Norden recommends voting as early as possible when using a mail-in or absentee ballot.“Do it early, so you can avoid the kind of last-minute complications that sometimes we've seen,” he said. “The number one reason that mail ballots don't count is because people get them in late.”Even with the vote-by-mail expansion, there are still variations in deadlines and rules. Experts say it’s also important to make sure you follow your state’s specific requirements. 2999

CHICAGO, Ill. -- Scientists are continuing to develop new COVID-19 testing methods. Everything from throat swabs and saliva tests to breathalyzers are potential options. The federal government has ordered 150 million rapid antigen tests to help quickly identify cases in places like schools and disaster zones.Still, we're six months into the global pandemic and experts say we still need better and more frequent testing.Supply chain bottlenecks, long turnaround times and the looming flu season have many pharmaceutical companies scrambling for a better test.“There's been a great push and a lot of innovation has gone into developing new tests that might be able to be used in different scenarios,” said Dr. Emily Landon, an infectious disease specialist at University of Chicago Medicine.Abbott Laboratories’ sixth iteration of the COVID-19 test, known as “Binax Now,” is a compact credit card sized rapid test similar to a home pregnancy test.“You are receiving a nasal swab and then that swab is directly inserted into the card and there's a small pouch there that it's inserted into. Six drops of a buffer had been placed there prior to putting in the swab,” explained John Hackett, Junior Vice President of Applied Research and Technology at Abbott Laboratories.And though it does require a health care worker to administer, no specialty lab equipment is needed to process the antigen test. Results are available in about 15 minutes. The cost is apiece.“So, in 15 minutes you can look at the front of this test and if you see a single line, that would be the control line, and if there's two lines, that would indicate that the individual is positive for SARS-CoV-2,” said Hackett.The test was granted emergency use authorization by the FDA. It includes an app that allows people who test negative to display a temporary digital health pass for quick screening.The Trump administration quickly bought up 150 million tests for about 0 million.Officials say they are already beginning to deploy the tests to states, nursing homes, schools and areas hit hard by recent natural disasters.“These antigen tests however are fast and cheap, and it can be done really easily,” said Dr. Landon.Though, helpful in some scenarios, Landon cautions quick antigen tests like this can be less accurate and have a high false positive rate.“These tests aren't perfect and some of you have been in that situation with strep throat where you find that even if the test is negative that they send off a culture afterwards to make absolutely certain that you don't have strep throat and these tests are kind of similar,” she said.Still, experts say having a variety of testing options is beneficial. But the gold standard of accuracy remains the deep nasopharyngeal swab tests processed in a lab. 2796

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