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羊胃解剖模型哪里有
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钱江晚报

发布时间: 2025-05-30 13:07:40北京青年报社官方账号
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  羊胃解剖模型哪里有   

Whether you had a gold medal hanging from your neck, were just learning how to stand on a snowboard, or were one of those flustered skiers wondering where all the kids in the baggy pants were coming from, you knew the name “Burton.”Jake Burton Carpenter, the man who changed the game on the mountain by fulfilling a grand vision of what a snowboard could be, died Wednesday night of complications stemming from a relapse of testicular cancer. He was 65.In an email sent to the staff at Burton, CEO John Lacy called Carpenter “our founder, the soul of snowboarding, the one who gave us the sport we love so much.”Carpenter was not the inventor of the snowboard. But 12 years after Sherman Poppen tied together a pair of skis with a rope to create what was then called a “Snurfer,” the 23-year-old entrepreneur, then known only as Jake Burton, quit his job in Manhattan, moved back to Vermont and went about dreaming of how far a snowboard might take him.“I had a vision there was a sport there, that it was more than just a sledding thing, which is all it was then,” Burton said in a 2010 interview with The Associated Press.For years, Burton’s snowboards were largely snubbed at resorts — their dimensions too untested, their riders too unrefined, their dangers all too real — and many wouldn’t allow them to share the slopes with the cultured ski elite in Colorado or California or, heaven forbid, the Swiss Alps.But those riders were a force of nature. And for all their risk-taking, rule-breaking, sidewinding trips down the mountain, they spent money, too. Throughout the last decade, snowboarders have accounted for more than 25% of visitors to mountain resorts in the United States. They have bankrolled a business worth more than billion annually — a big chunk of which is spent on Burton gear.“People take it for granted now,” said Pat Bridges, a longtime writer for Snowboarder Magazine, who has followed the industry for decades. “They don’t even realize that the name ‘Burton’ isn’t a company. It’s a person. Obviously, it’s the biggest brand in snowboarding. The man himself is even bigger.”In 1998, and with Carpenter’s tacit blessing, the Olympics got in on the act, in hopes of injecting some youth into an older-skewing program filled with ski jumpers, bobsledders, figure skaters and hockey players.As the years passed, Carpenter straddled the delicate line between the “lifestyle sport” he’d helped create — one that professed to value fun over winning, losing, money or Olympic medals — and the mass-marketing behemoth snowboarding was fast becoming.“He saw himself as a steward to snowboarding,” Bridges said. “I’m not saying he was infallible, or that he always made the right choices. But at least that was always part of his calculus: ‘What impact is this decision going to have on snowboarding?’”Though Burton is a private company that does not release financials, its annual sales were north of 0 million as of 2015. In addition to the hundreds of retail stores that sell the company’s merchandise, Burton has 30 flagship shops in America, 11 more in Europe and another 11 spread across the Pacific and Asia — a burgeoning market that Carpenter started developing a decade ago, during a time when the IOC was beginning the process of awarding three straight Winter Games to the continent.At a bar in Pyeongchang, South Korea, not far from where snowboarding celebrated its 20th anniversary at the Olympics last year, there was a wall filled with Burton pictures and memorabilia — as sure a sign as any of the global reach of a company that remains headquartered not far from where it was founded in Carpenter’s garage, in Londonderry, Vermont.For all his financial success, folks were always more likely to run into Carpenter wearing a snowsuit than a sportscoat. He was a fan of early morning backcountry rides, and he had to stay in good shape to keep up with some of the company he rode with.Burton sponsored pretty much every big name in the business at one time or another— from Seth Wescott to Shaun White, from Kelly Clark to Chloe Kim.Indeed, it is virtually impossible to avoid the name “Burton” once the snow starts falling at any given mountain around the world these days. The name is plastered on the bottoms of snowboards, embroidered on jackets, stenciled into bindings and omnipresent in the shops around the villages.The Burton U.S. Open, held each winter in Vail on a rider-friendly halfpipe traditionally recognized as the best on the circuit, remains a signature event on the snowboarding calendar.“I had no clue whatsoever that you’d be building parks and halfpipes and that kind of thing,” Burton said in his 2010 interview, when asked about the reach his modest little snowboard had had over the decades. “We’re doing something that’s going to last here. It’s not like just hitting the lottery one day.”His final years were not the easiest.Not long after being given a clean bill of health following his 2011 cancer diagnosis, Carpenter was diagnosed with a rare autoimmune disease, Miller Fisher Syndrome, that left him completely paralyzed for a short time.After a long rehab, he was back on the mountain, and in 2018, he was standing near the finish line to watch White win his third Olympic gold medal.“Jake embraced me and told me how proud he was of me and my career, and I’ll never forget that,” White said late Thursday in 5397

  羊胃解剖模型哪里有   

Two centuries after its invention, the stethoscope — the very symbol of the medical profession — is facing an uncertain prognosis.It is threatened by hand-held devices that are also pressed against the chest but rely on ultrasound technology, artificial intelligence and smartphone apps instead of doctors’ ears to help detect leaks, murmurs, abnormal rhythms and other problems in the heart, lungs and elsewhere. Some of these instruments can yield images of the beating heart or create electrocardiogram graphs.Dr. Eric Topol, a world-renowned cardiologist, considers the stethoscope obsolete, nothing more than a pair of “rubber tubes.”It “was OK for 200 years,” Topol said. But “we need to go beyond that. We can do better.”In a longstanding tradition, nearly every U.S. medical school presents incoming students with a white coat and stethoscope to launch their careers. It’s more than symbolic — stethoscope skills are still taught, and proficiency is required for doctors to get their licenses.Over the last decade, though, the tech industry has downsized ultrasound scanners into devices resembling TV remotes. It has also created digital stethoscopes that can be paired with smartphones to create moving pictures and readouts.Proponents say these devices are nearly as easy to use as stethoscopes and allow doctors to watch the body in motion and actually see things such as leaky valves. “There’s no reason you would listen to sounds when you can see everything,” Topol said.At many medical schools, it’s the newer devices that really get students’ hearts pumping.“Wow!” ″Whoa!” ″This is awesome,” Indiana University medical students exclaimed in a recent class as they learned how to use a hand-held ultrasound device on a classmate, watching images of his lub-dubbing heart on a tablet screen.The Butterfly iQ device, made by based by Guilford, Connecticut-based Butterfly Network Inc., went on the market last year. An update will include artificial intelligence to help users position the probe and interpret the images.Students at the Indianapolis-based medical school, one of the nation’s largest, learn stethoscope skills but also get training in hand-held ultrasound in a program launched there last year by Dr. Paul Wallach, an executive associate dean. He created a similar program five years ago at the Medical College of Georgia and predicts that within the next decade, hand-held ultrasound devices will become part of the routine physical exam, just like the reflex hammer.The devices advance “our ability to take peek under the skin into the body,” he said. But Wallach added that, unlike some of his colleagues, he isn’t ready to declare the stethoscope dead. He envisions the next generation of physicians wearing “a stethoscope around the neck and an ultrasound in the pocket.”Modern-day stethoscopes bear little resemblance to the first stethoscope, invented in the early 1800s by Frenchman Rene Laennec, but they work essentially the same way.Laennec’s creation was a hollow tube of wood, almost a foot long, that made it easier to hear heart and lung sounds than pressing an ear against the chest. Rubber tubes, earpieces and the often cold metal attachment that is placed against the chest came later, helping to amplify the sounds.When the stethoscope is pressed against the body, sound waves make the diaphragm — the flat metal disc part of the device — and the bell-shaped underside vibrate. That channels the sound waves up through the tubes to the ears. Conventional stethoscopes typically cost under 0, compared with at least a few thousand dollars for some of the high-tech devices.But picking up and interpreting body sounds is subjective and requires a sensitive ear — and a trained one.With medical advances and competing devices over the past few decades, “the old stethoscope is kind of falling on hard times in terms of rigorous training,” said Dr. James Thomas, a cardiologist at Northwestern Medicine in Chicago. “Some recent studies have shown that graduates in internal medicine and emergency medicine may miss as many of half of murmurs using a stethoscope.”Northwestern is involved in testing new technology created by Eko, a Berkeley, California-based maker of smart stethoscopes. To improve detection of heart murmurs, Eko is developing artificial intelligence algorithms for its devices, using recordings of thousands of heartbeats. The devices produce a screen message telling the doctor whether the heart sounds are normal or if murmurs are present.Dennis Callinan, a retired Chicago city employee with heart disease, is among the study participants. At age 70, he has had plenty of stethoscope exams but said he feels no nostalgia for the devices.“If they can get a better reading using the new technology, great,” Callinan said.Chicago pediatrician Dr. Dave Drelicharz has been in practice for just over a decade and knows the allure of newer devices. But until the price comes down, the old stalwart “is still your best tool,” Drelicharz said. Once you learn to use the stethoscope, he said, it “becomes second nature.”“During my work hours in my office, if I don’t have it around my shoulders,” he said, “it’s as though I was feeling almost naked.” 5223

  羊胃解剖模型哪里有   

WASHINGTON, D.C. – The Department of Transportation (DOT) is suspending all public charter flights between the U.S. and Cuba other than to Havana’s José Martí International Airport (HAV). Secretary of State Mike Pompeo 231

  

Whatever it takes. Watch the brand new trailer for Marvel Studios’ #AvengersEndgame, in theaters April 26. pic.twitter.com/0sOetnYzPu— The Avengers (@Avengers) March 14, 2019 186

  

WARNING: Some viewers may find some of the content in this video difficult to watch. Three years ago, Lee Brook went on a hunting trip with family in the mountains of Wyoming. One day, while hauling elk back to his camp, Brook encountered a grizzly bear.Before Brook's could react, the grizzly started to attack him. During the attack, Brook says he remembered saying to himself, "Lord I can use a little help about now. Not really understanding he'd already been at work, because I'm alive."Brook, whose face was disfigured in the gruesome incident, is still recovering.He says he lost consciousness during the attack. When he awoke, Brook could hear the bear sniffing him. He recalls reaching for his knife and stabbing the bear, before quickly making his escape. Badly injured, Brook says he saw his nose on the ground. He quickly grabbed it, put it in his pocket and ran, screaming for help. Brook was flown to Swedish Medical Center in Denver, Colorado, where he was placed into a coma for 30 days. Miraculously, Brook lived. Then, his remarkable facial reconstruction journey began. Plastic surgeons Dr. Lily Daniali and Dr. Benson Pulikkottil--a husband and wife duo who work at the hospital’s burn and reconstructive center--were in charge of reconstructing Brook’s face. Areas of Brook’s face that sustained the most damage were his nose and upper lip. Fortunately, doctors had Brook’s nose. "Ultimately, we took a chance to see if it would take, which it did," says Dr. Pulikkottil. But how the doctors were able to save his nose is a miracle within itself. The surgeons sewed Brook’s nose to his forearm to keep it alive. Meanwhile, Brook underwent dozens of surgeries. Doctors used cartilage and tissue from all over his body to put his face back together. Using skin from his legs, the surgeons created a new upper lip for Brook. Hair on his head was used to create a mustache. This week, the surgeons were finally able to reattach Brook’s nose to his face. They say the surgery was successful and Brook is doing well. “I'm super proud of him, super proud," says Brook’s wife, Martha, who has been his side through it all.The Brooks have kept their spirits bright, but there’s one thing Brook says he’ll miss the most about his old life. “I'll never feel my wife kiss,” Brook says. “I'll never. That's probably the biggest one for me."Following the surgery, Brook lost the ability to feel in some places of his face. However, his wife says the most important thing is her husband is the same person. “The whole fact that the way he looks is not his focus, and he’s still the [same] Lee,” she says. A 2625

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