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广东自然大头针模型
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钱江晚报

发布时间: 2025-06-03 23:48:24北京青年报社官方账号
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  广东自然大头针模型   

“We found out our house was totally leveled. I couldn’t find one piece of a 2 by 4 left,” recalls Ed Anderson, a wildfire survivor. In 2012, the Waldo Canyon fire ripped through Ed Anderson’s house in Colorado Springs, Colorado. There was nothing left, and Anderson and his wife just barely escaped. “We collected up a few more things, got in my pickup, collected up the cat, and we took off," he says. "And the fire at that time was coming over the mountain rolling like a tornado. And it hit our house, they said, about 15 to 20 minutes after we evacuated." His home was one out of more than 300 destroyed in that fire. He decided to rebuild on the same exact spot. It’s what many people do. “If it burns, we rebuild it, we fight back, and it’s a very human thing to do,” says Brian Buma, a professor at CU Denver. Buma is trying to get people to think differently about fires, especially because he says there will be more of them. “The problem is, we have an ecosystem that is highly flammable, many years, and we have a lot of people living in it. That’s compounded by the fact that the climate is warming up, things are getting dryer, things are getting more flammable,” says Buma. Buma says climate change is creating conditions that will end in more wildfires. He and other researchers published a study outlining how communities can be more proactive with how they get ready for fires. “Maybe we need to rethink how we deal with fire and be more accepting of prescribed fires, for example, be more accepting of smoke when foresters in the forest service are clearing out the underbrush every year, more accepting of the fact there won’t be trees everywhere on these hills,” he explains. The trees that surround Anderson’s home are still scorched and barren from that fire more than seven years ago. He says watching his home burn was hard, but he still had the most important thing. “Your life is what’s important, not the material things that you have lost,” Anderson says. That’s not how things played out last year in California. “The fires in California, last year, were really indicative of the challenges we are going to face moving forward into the future,” Buma says. The most infamous, the Camp Fire, killed more than 80 people. “The fuel is building up, the tinder is building up, it’s getting warmer, it’s getting dryer," Buma says. "To me, as a scientist, what that says is we need to make some clear-eyed decisions about how we’re going to deal with this new reality. We know more of these things are coming, it’s simply a question of how we choose to deal with them." Buma’s study shows communities can plan better to prevent wildfires from destroying homes. “They can do things to mitigate that risk. They can put parking lots on the outside of their community, or ball fields on the outside of their community, to provide a large fire break integrated into their community planning,” he says. He thinks these types of communities will be better prepared, more resilient to flames, and hopefully won’t have to rebuild like Anderson did. 3082

  广东自然大头针模型   

CVS Health is encouraging employers to cover Sleepio as an employee benefit. This app is supposed to help people with insomnia. Through a six-week program, it’s supposed to help people fall asleep faster and stay asleep by using cognitive behavioral therapy. It's encouraged by doctors because it tackles sleeping habits by changing people's negative thinking patterns. But do sleep apps really work? One expert at the University of Colorado says they do help provide certain information that your doctor may not have, like how long you're sleeping every night. But there are other things sleep apps can't do. “Where they fall short is when they're sort of estimating your sleep stages,” says Christopher Depner, a sleep expert at the University of Colorado. “That's gonna be your light sleep, your REM sleep and your deep sleep. In some people they're accurate, in other people they're less than 50% accurate. So, for right now, we really can't use them medically to assess sleep staging.” If an app alerts you that you're getting less than seven hours of sleep, talk to your doctor. These sleep apps are not actual medical diagnostic devices because they're not approved by the FDA. That's not to say they won't ever be approved, but right now, app makers are having a hard time getting the green light.The same applies to any other app that intends to treat other conditions. 1391

  广东自然大头针模型   

Dec. 11-23: 9 a.m.-10 p.m.Dec. 24 (Christmas Eve): 8 a.m.-6 p.m.Dec. 25 (Christmas Day): CLOSEDWestfield UTC (4545 La Jolla Village Dr.) 152

  

Arnold Kee has always pushed his two sons to do well in school. Then, an email he received from their high school last year alarmed him. It alerted parents about high levels of lead found in the water. “Fortunately, they've both done well, but it's the type of thing that makes you wonder would they have performed even better had they not been exposed to whatever lead was in the system,” Kee says. According to the Environmental Protection Agency (EPA), even low levels of lead can cause behavior and learning problems, including lower IQ scores. The school replaced water fountains and installed filters at the school designed to reduce lead. “What I like is the idea of the school being proactive and trying to address it, but then also the city itself trying to address it, because I do think it takes more than the just the city to be on top of what's happening,” Kee says. Washington, D.C. law now requires filters to be put on water fountains at schools, daycares and even at parks. However, D.C.’s efforts are the exception. An alarming report by Environment America found most schools are not doing enough to protect students from drinking water contaminated with lead. “We see pervasive contamination of drinking water at schools and pre-schools across the country,” says John Rumpler, co-author of the report.The report looked at states across the country and found most received failing grades. Millions of children are being exposed to lead from contaminated pipes and drinking fountains. “If your kid’s school was built before 2014, chances are the pipes, the plumbing, the fountains, the faucets have significant amounts of lead in them and those faucets and fountains should be replaced and filters should be put on,” Rumpler says.Rumpler urges parents to pressure their schools and lawmakers to make those changes. He also any parents concerned about lead contamination should talk with their pediatrician. 1937

  

BALTIMORE, Md. – Maryland has confirmed its first cases of the novel coronavirus in the state.On Thursday, Governor Larry Hogan announced on Twitter that the state’s Public Health Laboratory in Baltimore confirmed three positive cases of the virus, which causes an upper respiratory disease called COVID-19. The state’s Public Health Laboratory in Baltimore has confirmed the first three positive cases of novel coronavirus in Maryland. The patients, who contracted the virus while traveling overseas, are in good condition.— Governor Larry Hogan (@GovLarryHogan) 577

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