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山东头部肌肉加血管模型
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发布时间: 2025-05-31 16:22:07北京青年报社官方账号
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  山东头部肌肉加血管模型   

With many conferences scrapping fall sports, the NCAA announced that it will postpone all fall Division I championships for 2020 amid the coronavirus pandemic.The decision does not impact the College Football Playoff, although the future of that competition is in question. The announcement, however, impacts athletes from other sports including soccer and women’s volleyball.NCAA President Mark Emmert said that college championships cannot be held as long as 50% of conferences are not participating.Emmert said that his staff has been already looking at ways of ensuring college athletics can move forward with winter and spring sports. Emmert said the NCAA should make it a priority to ensure winter and spring championships in 2021 are played given that the NCAA had to cancel all winter and spring championships in 2020.“I am confident we can do it,” he said. 873

  山东头部肌肉加血管模型   

With a mask covering his face and his fingers playing a disinfected piano, musician Purnell Steen and his band, Le Jazz Machine, are back to doing what they love: playing music in front of a live audience, but now from a regulated distance.“It is a new learning experience for all us,” Steen said.After being shut down for months due to coronavirus concerns, Steen is back on his home stage at Dazzle in downtown Denver, one of the top 100 jazz bars in the world.“For the entire month of June, we did as much as much revenue as we used to do on a good Saturday,” said Matt Ruff, Dazzle general manager.Ruff says new safety guidelines that allow live music venues like his to operate are impacting his bottom line.“Capacity went from 50 to 100 people,” he said. “But it’s still 6-foot distancing between tables and the closest table to the stage has to be 25 feet away from the stage.”Though he’s thankful to reopen, Ruff is also questioning some of those safety measures, like no longer allowing wind instruments to be played on stage.“I think that’s based on faulty information,” he said. "People think that horns project something, but the science is just not there.”Some scientists, however, believe those brass instruments could hit a sour note when it comes to health.“You’re blowing from the lungs, so they are respiratory droplets and that’s the primary means by which this virus is transmitted,” said Sheryl Zajdowicz, Ph.D., a biology professor at Metropolitan State University of Denver.This infectious disease specialist says while live music could be good for the soul, social distancing could be even better for one’s health.“When you’re at a music venue, you’re kind of up against each other,” she said. “It’s going to be very challenging to limit that from happening.”That’s where Live Nation comes in.This entertainment group is now promoting “Live from the Drive-In,” a new live music experience where people can watch and listen to top artists from their own individual tailgate zones at outdoor concerts across the country.Back at Dazzle, fans say live music is what they need during this pandemic.And while the new normal on stage could be confining for artists, they believe live music will help calm emotions as the virus moves towards a crescendo.“If we can bring a few moments of joy to somebody than we have performed our mission,” Steen said. 2376

  山东头部肌肉加血管模型   

With hurricane season in full swing, there's a lot of talk from meteorologists about hurricane "categories." What do they mean, and what do they tell us about a storm?It turns out, a hurricane's category is only based on one thing: wind speed.According to the National Hurricane Center's website, the agency relies on the Saffir-Simpson Hurricane Wind Scale to determine a storm's strength. The scale categorizes a hurricane on a 1-5 scale, based on the storm's maximum sustained winds — the one-minute average of the wind speed taken from inside the storm.When storms over the Atlantic begin to organized into a rotating system around a central "eye," and sustained wind speeds in the storm reach 39 mph, it's classified as a tropical storm. Once wind speeds in the system reach 74 mph, it becomes a hurricane.From there, the NHC uses the Saffir-Simpson Scale to determine how much destruction a hurricane is expected to inflict on an area. While any hurricane is expected to cause damage to homes and topple some trees in its path, higher wind speeds can lead to trees blocking roads and downing power lines, isolating communities without power or access to water for weeks — or even months.STRENGTHMAX SUSTAINED WIND SPEEDDESTRUCTION CATEGORY 1Between 74 mph and 95 mphWell-constructed houses could have damage to roof, shingles, vinyl siding and gutters. Large branches of trees will snap and shallowly-rooted trees may be toppled. Extensive damage to power lines and poles likely will result in power outages that could last a few to several days. CATEGORY 2Between 96 mph and 110 mphHouses could sustain major roof and siding damage. Many shallowly rooted trees will be snapped or uprooted and block roads. Near-total power loss is expected with outages that could last from several days to weeks. CATEGORY 3 (major)Between 111 mph and 129 mphHouses may incur major damage or removal of roof decking and gable ends. Many trees — regardless of root depth — will be snapped or uprooted, blocking roads. Electricity and water will be unavailable for several days to weeks after the storm passes.CATEGORY 4 (major)Between 130 mph and 156 mphHouses can sustain severe damage with loss of most of the roof structure and possibly some exterior walls. Most trees will be snapped or uprooted and power poles will topple. Fallen trees and power poles will isolate residential areas. Power outages will last weeks to possibly months. Most of the area will be uninhabitable for weeks or months.CATEGORY 5 (major)Above 157 mphA high percentage of framed houses will be destroyed, with total roof failure and wall collapse. Fallen trees and power poles will isolate residential areas. Power outages will last for weeks to possibly months. Most of the area will be uninhabitable for weeks or months.Any hurricane that reaches Category 3, with sustained winds above 111 mph, is considered a "major" hurricane. According to the NHC, that's because "of their potential for significant loss of life and damage." But that doesn't mean Category 1 and 2 hurricanes can't be deadly.The NHC itself says that Category 1 and 2 hurricanes are "still dangerous" and "require preventative measures."While Hurricane Sandy peaked at Category 3 intensity when it made landfall in Cuba in 2012, it had collapsed into a post-tropical cyclone by the time it reached New Jersey on Oct. 29. Even though the storm only had Category 1 strength winds, it still resulted in the deaths of 131 people in America, according to media reports, and an estimated billion in damages — the second-costliest hurricane in U.S. history up to that point.The Saffir-Simpson Scale also doesn't take into account storm surge in coastal areas and flash flooding caused by the surge and heavy rain. Flooding can cause significant property damage and make main roads — including expressways — inaccessible. 3864

  

With a total of six adopted and foster children, Keri Penland’s family is an exercise in planning and patience.“Trying to do school with them has been insane,” she said.All of her kids are school-aged; some have learning disabilities. When the coronavirus pandemic hit, they--along with tens of millions of other students across the country--became part of a nationwide experiment in remote learning.Her verdict?“I don't know how anybody is doing this, to be honest,” Penland said. “It's not possible.”And it turns out, she's not alone.“We found that remote learning is really failing our most vulnerable learners,” said Justin Ruben, who is with the nonprofit “ParentsTogether.” The group recently conducted a survey of more than 1,500 families across the country to see how remote learning was going.Among the findings:When compared to a family making 0,000 a year, lower-income families--making ,000 or less-- are ten times more likely to have children doing little to no remote learning.Those families are also five times more likely to attend a school not offering distance learning materials at all and 13 percent of them didn’t even have a computer device or internet access.Yet, the numbers were even worse for families of children with special needs, who usually get individualized support at school. Out of those families, 40 percent said that with remote learning, they were receiving no support at all.“A huge chunk of students are being left behind by remote learning,” Ruben said.ParentsTogether wants the federal government to step in with 5 billion more in funding for education, especially since the coronavirus pandemic slashed tax revenues for local and state budgets and, in turn, education programs.“Schools are making budgets right now and kids are falling behind right now, and schools are making plans for the fall right now,” Ruben said. “And so, there's this surreal lack of urgency in Washington, D.C., and there’s literally like a whole generation of vulnerable kids is being allowed to languish.”Back at Penland’s house, it’s been an unusual ending to the school year.“I'll tell you, if school doesn't start again, the kids are gonna be way, way behind,” she said. “It's a different time than we've ever experienced.”Given everything that happened with schools and the pandemic, experts have some suggestions for how to keep kids engaged and learning over the summer.Keep some semblance of structure. A visual schedule that everyone can see will help and make it easier for you and your kids to get back into the swing of things when summer ends.Read to your children or encourage them to read, write or draw--anything that engages their minds, as long as it does not involve a computer or phone screen.Outdoor hikes, walks or scavenger hunts can help kids get exercise and keep them engaged in discovering new things.Make sure your kids get enough sleep and proper nutrition, to keep them in top shape and ready for when it’s time to return to school. 2998

  

Whether kids learn at school or at home this fall, Nick Rose wants them to learn and practice music. That's Rose’s goal behind his Band In A Box program.Rose has been distributing hundreds of plain brown boxes with the gift of music inside. It's a spinoff from his Band In A Bus program.“We believe it’s like giving away a box of joy,” said Rose.With more and more questions about what classes and extracurriculars will look like as the coronavirus pandemic continues, Band In A Bus is changing its approach to hand out recorders and drum sticks to as many kids as possible.“The least we can do in these trying times is help kids feel some type of happiness and excitement every day,” Rose said. "That’s kind of why we’re trying to pilot this program.”Band In A Bus says budget cuts due to the coronavirus are forcing some schools to cut back music programs even more, which makes these free boxes even more important for kids.“The worst thing that we can do to a kid is strip them of this creative outlet,” Rose said. “As a growing young person, the most valuable thing is learning who you are and your tone of voice.”The Band in a Box program has enough money to help about 500 kids, but it is raising more money to try to impact as many families as possible.“That’s the experience that every kid can kind of relate to – that excitement, that fun,” Rose said. “You could see their smiles as they were drumming. It’s such a powerful emotion.”You can donate to Band In A Box at GoFundMe.com.WCPO's Josh Bazan first reported this story. 1543

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