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发布时间: 2025-06-01 04:01:34北京青年报社官方账号
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CHICAGO, Ill. – A futuristic innovation is changing the way doctors set broken bones. A startup company called Cast21 has created a new type of cast that completely overhauls its plaster and fiberglass predecessors. It takes just minutes to put on and lets patients enjoy an active life, even allowing them to swim and shower with it.A couple of weeks ago, 12-year-old Jett Karrick took a hard fall during a basketball game.“He went over and stopped himself with his left hand and he ended up having a bicortical radius fracture,” said his father Tony.A trip to the emergency room put him in a traditional fiberglass cast, but he was instantly unhappy.“Was itching quite a bit,” said Karrick. “He didn't like the way it smelled, the whole drama associated with getting in the shower and the garbage bag.”An internet search led the Karricks to the innovative new cast, a futuristic sleeve that's waterproof, lightweight and breathable.“This product is completely waterproof. You can wash your hands, shower, jump into a hot tub, go to the beach, and it'll dry right off afterwards,” said Ashley Moy, CEO and co-founder of Cast21. The company believes it could make smelly and itchy plaster casts a thing of the past.The casts start with a flexible hollow net sleeve.“So, we're going to be able to move your arm and whatever orientation we need to best keep the bones and fractures in place,” said Moy.Then a proprietary liquid is pumped into the cast’s tubes.“The liquid is going to take up any of the negative space that you had in there so that we can get a really acute and comfortable fit for you,” she said.Within minutes, the cast hardens.Earlier this week, Jett got his old cast removed and a Cast21 as a replacement.“This cast just gives me a lot more freedom. It lets my hand breathe and it doesn't stink as bad.”Nine-months into production and Cast21 is available in 13 states. While the Karrick family's insurance is covering the high-tech cast, costs can depend on the individual provider.“Our process is also way more efficient to apply and remove,” said Moy. “It's about six times quicker to put on and it only takes seconds to remove.”No saw is needed.And while the immobilization net is currently only available for lower arm fractures, the company says they are currently in research and development on new sleeves for other limbs. 2355

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CAPE CANAVERAL, Fla. (AP) — Mars is about to get its first U.S. visitor in years: a three-legged, one-armed geologist to dig deep and listen for quakes.NASA's InSight makes its grand entrance through the rose-tinted Martian skies on Monday, after a six-month, 300 million-mile (480 million-kilometer) journey. It will be the first American spacecraft to land since the Curiosity rover in 2012 and the first dedicated to exploring underground.NASA is going with a tried-and-true method to get this mechanical miner to the surface of the red planet. Engine firings will slow its final descent and the spacecraft will plop down on its rigid legs, mimicking the landings of earlier successful missions.That's where old school ends on this billion U.S.-European effort .Once flight controllers in California determine the coast is clear at the landing site — fairly flat and rock free — InSight's 6-foot (1.8-meter) arm will remove the two main science experiments from the lander's deck and place them directly on the Martian surface.No spacecraft has attempted anything like that before.The firsts don't stop there.One experiment will attempt to penetrate 16 feet (5 meters) into Mars, using a self-hammering nail with heat sensors to gauge the planet's internal temperature. That would shatter the out-of-this-world depth record of 8 feet (2 ? meters) drilled by the Apollo moonwalkers nearly a half-century ago for lunar heat measurements.The astronauts also left behind instruments to measure moonquakes. InSight carries the first seismometers to monitor for marsquakes — if they exist. Yet another experiment will calculate Mars' wobble, providing clues about the planet's core.It won't be looking for signs of life, past or present. No life detectors are on board.The spacecraft is like a self-sufficient robot, said lead scientist Bruce Banerdt of NASA's Jet Propulsion Laboratory."It's got its own brain. It's got an arm that can manipulate things around. It can listen with its seismometer. It can feel things with the pressure sensors and the temperature sensors. It pulls its own power out of the sun," he said.By scoping out the insides of Mars, scientists could learn how our neighbor — and other rocky worlds, including the Earth and moon — formed and transformed over billions of years. Mars is much less geologically active than Earth, and so its interior is closer to being in its original state — a tantalizing time capsule.InSight stands to "revolutionize the way we think about the inside of the planet," said NASA's science mission chief, Thomas Zurbuchen.But first, the 800-pound (360-kilogram) vehicle needs to get safely to the Martian surface. This time, there won't be a ball bouncing down with the spacecraft tucked inside, like there were for the Spirit and Opportunity rovers in 2004. And there won't be a sky crane to lower the lander like there was for the six-wheeled Curiosity during its dramatic "seven minutes of terror.""That was crazy," acknowledged InSight's project manager, Tom Hoffman. But he noted, "Any time you're trying to land on Mars, it's crazy, frankly. I don't think there's a sane way to do it."No matter how it's done, getting to Mars and landing there is hard — and unforgiving.Earth's success rate at Mars is a mere 40 percent. That includes planetary flybys dating back to the early 1960s, as well as orbiters and landers.While it's had its share of flops, the U.S. has by far the best track record. No one else has managed to land and operate a spacecraft on Mars. Two years ago, a European lander came in so fast, its descent system askew, that it carved out a crater on impact.This time, NASA is borrowing a page from the 1976 twin Vikings and the 2008 Phoenix, which also were stationary and three-legged."But you never know what Mars is going to do," Hoffman said. "Just because we've done it before doesn't mean we're not nervous and excited about doing it again."Wind gusts could send the spacecraft into a dangerous tumble during descent, or the parachute could get tangled. A dust storm like the one that enveloped Mars this past summer could hamper InSight's ability to generate solar power. A leg could buckle. The arm could jam.The tensest time for flight controllers in Pasadena, California: the six minutes from the time the spacecraft hits Mars' atmosphere and touchdown. They'll have jars of peanuts on hand — a good-luck tradition dating back to 1964's successful Ranger 7 moon mission.InSight will enter Mars' atmosphere at a supersonic 12,300 mph (19,800 kph), relying on its white nylon parachute and a series of engine firings to slow down enough for a soft upright landing on Mars' Elysium Planitia, a sizable equatorial plain.Hoffman hopes it's "like a Walmart parking lot in Kansas."The flatter the better so the lander doesn't tip over, ending the mission, and so the robotic arm can set the science instruments down.InSight — short for Interior Exploration using Seismic Investigations, Geodesy and Heat Transport — will rest close to the ground, its top deck barely a yard, or meter, above the surface. Once its twin circular solar panels open, the lander will occupy the space of a large car.If NASA gets lucky, a pair of briefcase-size satellites trailing InSight since their joint May liftoff could provide near-live updates during the lander's descent. There's an eight-minute lag in communications between Earth and Mars.The experimental CubeSats, dubbed WALL-E and EVE from the 2008 animated movie, will zoom past Mars and remain in perpetual orbit around the sun, their technology demonstration complete.If WALL-E and EVE are mute, landing news will come from NASA orbiters at Mars, just not as quickly.The first pictures of the landing site should start flowing shortly after touchdown. It will be at least 10 weeks before the science instruments are deployed. Add another several weeks for the heat probe to bury into Mars.The mission is designed to last one full Martian year, the equivalent of two Earth years.With landing day so close to Thanksgiving, many of the flight controllers will be eating turkey at their desks on the holiday.Hoffman expects his team will wait until Monday to give full and proper thanks.___The Associated Press Health & Science Department receives support from the Howard Hughes Medical Institute's Department of Science Education. The AP is solely responsible for all content. 6433

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Cereal company General Mills announced on Thursday that its employees are eligible for up to 20 weeks of paid maternity leave under a new company policy, effective Jan. 1, 2019. Also part of the announcement, General Mills said it will offer up to 12 weeks for paid paternity and adoption leave for its employees. While the United States' Family Medical Leave Act requires most employers to allow staff to take up to 12 weeks off, the act does not require employers to pay employees for leave. General Mills said the new rules apply to its salaried and non-union employees. Other changes in family leave policy announced by General Mills include:      ● Caregiver Leave: A new benefit in 2019, General Mills will now offer caregivers a two-week paid leave for the care of immediate family members with a serious health condition. 882

  

CARLSBAD, Calif. (KGTV) -- Border Patrol and the Coast Guard are investigating after a Panga Boat washed ashore in North County Monday morning. According to agents, the 18-foot-long boat was found early Monday morning on Tamarack State Beach in Carlsbad. Agents discovered several life jackets and gas cans inside the vessel. RELATED: Possible human smuggling boat found in Del Mar beachMarkings on the boat indicate it may have come from Ensenada, but Border Patrol hasn’t confirmed that information. It’s unclear at this time how many people were aboard the boat. 574

  

CHICAGO, Ill. – Chicago’s police commissioner says more than 100 people were arrested following a night of looting and unrest that left 13 officers injured and caused damage in the city’s upscale Magnificent Mile shopping district and other parts of the city.Police Superintendent David Brown says it “was not an organized protest” but instead “an incident of pure criminality” that began following the shooting of a person by police the previous day in the city's Englewood neighborhood.It wasn’t immediately clear what led to the unrest, which began shortly after midnight, but anti-police graffiti was seen in the area.At one point early Monday, shots were fired at police and officers returned fire.Many of the businesses that were ransacked had recently opened after Chicago protests of George Floyd’s May 25 death in Minneapolis devolved into chaos.Brown says a heavy police presence is expected in the downtown area until further notice.Mayor Lori Lightfoot described it as “straight up, felony criminal conduct” and “an assault on our city." 1057

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