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昆明腹腔镜训练系统
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发布时间: 2025-05-25 10:42:17北京青年报社官方账号
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  昆明腹腔镜训练系统   

Yosemite National Park is investigating about 170 reports of gastrointestinal illnesses and has confirmed two cases of norovirus, officials said Thursday.The National Park Service began investigating after visitors and employees started reporting illnesses this month. Most cases occurred in early January.“We’ve had very few the last week or so,” park spokesman Scott Gediman said. “We’re hoping that we’re over the hump.”Norovirus is highly contagious and can be spread through direct contact with an infected person, touching a contaminated surface or eating or drinking contaminated food. It can cause vomiting and diarrhea and its symptoms are especially severe for elderly people, young children and people with health issues.Most of those who reported becoming sick in Yosemite had symptoms consistent with norovirus, although some might have had food poisoning or the flu, Gediman said.The origin of the outbreak was unclear. Park officials also haven’t determined whether people who became ill contracted something inside or outside of the park.Most of the people who got sick had spent time in Yosemite Valley, where park offices, visitor services, snack shops, hotels and restaurants are clustered.The park hasn’t tested food or facilities in the park for traces of norovirus, but Gediman said the park and its concession operators have been working to clean and disinfect public buildings, including the famous Ahwahnee Hotel.Aramark, which operates the hotel, received numerous complaints from visitors about poor food quality, shuttle and other services since it began managing Yosemite’s concessions four years ago.The company is working with the park to prevent future illnesses, Gediman said.“They’ve been a great partner,” he said. 1761

  昆明腹腔镜训练系统   

(AP) -- Not even the coronavirus could stop the 30th annual Ig Nobel ceremony, which annually recognizes sometimes dubious but always humorous scientific achievement. The event is usually held live at Harvard University, but Thursday's awards presentation was a virtual prerecorded affair. One winner is an anthropologist who tried to fashion a knife out of frozen human feces. Another is a researcher who found that people who study insects for a living are creeped out by spiders. President Donald Trump and several other world leaders also won Ig Nobels for insisting they're smarter than scientists in dealing with the pandemic. 640

  昆明腹腔镜训练系统   

(CNN) - As the Dow was on pace for its best day of the year, and a report showed American stores had their best holiday season in six years, JCPenney's stock fell below for the first time since it started trading in 1929.That's pretty much everything you need to know about the state of JCPenney (JCP).The 110-year old company hasn't been profitable since 2010 and its prospects are bleak. JCPenney is billion in debt with a junk credit rating, a sinking cash hoard and no sign of a turnaround.With few shoppers coming to stores, JCPenney faces inventory and supply chain struggles and no clear marketing plan or strategy. The company has been forced to offer steep discounts on clothing to clear its massive inventory glut.Last month, JCPenney reported a 1 million third-quarter loss and a 5.4% drop in sales. The stock has fallen 68% this year and nearly 30% in December alone.Jill Soltau, formerly the boss of Jo-Ann Stores, became CEO in October — the company's fourth in six years. Soltau has her work cut out for her.The company's leaders said they are considering closing some of JCPenney's remaining 860 stores. That might help JCPenney in the near-term, but its long-term prospects are questionable. The company has a .1 billion debt payment due in 2023. Wall Street analysts are skeptical about JCPenney's ability to repay that money.A spokeswoman for JCPenney declined to comment.The company never really recovered from the Great Recession. It lost shoppers to cheaper sellers a decade ago and struggled to bring them back as the economy began to rebound.JCPenney plowed through its cash reserve in an expensive makeover after it hired former Apple Store chief Ron Johnson as its CEO in 2011. The plan didn't work, and Johnson was fired after 17 months on the job.It lacked the cash to improve stores, buy trendy merchandise or hire more employees.The company switched its focus several times over the past few years: from older shoppers to younger, trendier ones, back toward middle-aged women.JCPenney has recently changed its merchandising strategy, chasing proven sales trends instead of filling up stores with inventory. It started selling appliances a few years ago, but that strategy hasn't paid off either. 2244

  

(AP) - Pacific Gas & Electric Company says it will cooperate with any investigations stemming from a massive wildfire in Northern California.The utility told state regulators Thursday that it experienced a problem on an electrical transmission line near the site of the Camp Fire minutes before the fire broke out. The company said it later observed damage to a transmission tower on the line.PG&E spokeswoman Lynsey Paulo said Friday the information was preliminary and stressed that the cause of the fire has not been determined.RELATED: 10News Coverage of California WildfiresThe fire has killed at least nine people and destroyed more than 6,000 homes. It forced the evacuation of roughly 30,000 people in the town of Paradise, about 180 miles (289 kilometers) northeast of San Francisco.PG&E had planned earlier this week to launch a Public Safety Power Shutoff in portions of eight Northern California counties but canceled the plan, as weather conditions did not warrant the safety measure, according to a news release.PG&E later notified customers directly via automated calls, texts and emails that the potential Public Safety Power Shutoff had been canceled.RELATED: New California law helps utilities with wildfire lawsuits / Power company turns off lines to residents to prevent firesThe power company had notified approximately 70,000 customers in portions of Northern California of the potential that the company would turn off power for safety given forecasts of extreme fire danger conditions.   1570

  

"I'm not going to waste my time on a virtual debate" -- Trump, on with Maria Bartiromo, begins his first post-coronavirus interview by saying he's pulling out of the second debate. (He sounds a little hoarse.) pic.twitter.com/R43JSszfll— Aaron Rupar (@atrupar) October 8, 2020 284

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