濮阳东方医院做人流评价比较高(濮阳东方医院男科治疗早泄技术比较专业) (今日更新中)

According to a new study from Common Sense Media and Boston Consulting Group, 30% of students in the U.S. either don't have internet access or access to a device adequate for distance learning. There are 9 million students across the country that don't have either.As another school year affected by COVID-19 inches closer, there are movements not only to prep kids but also to close the digital divide."It's an absolute national tragedy that we can fix," said James Steyer, the founder and CEO of Common Sense Media. "First of all, there needs to be money immediately appropriated in the next stimulus bill that would cover the cost of devices and connectivity for every student and every family in the United States. That's imminently doable and critical to our educational needs."Steyer says it's "shocking" that so many students lack the resources to e-learn — but the students aren't alone. The study also found that teachers are underpaid and working in under-resourced areas."Between 300,000 and 400,000 teachers in this country — essentially 10% of the teaching force — also have the digital divide and don't have the device and connectivity they need to teach in a distance learning environment," Steyer said. "We have a huge challenge, and we need to meet it now."Steyer is leading the charge for change. In a letter to Congress, he and more than a dozen well-known organizations called on lawmakers to "connect all students."One of the organizations in that group was Khan Academy — a non-profit funded by philanthropic donations. The online educational site offers free learning for anyone, anywhere — no strings attached."We've been talking about it well before COVID-19 — that learning should not be bound by time or space," founder Sal Khan said. "Wherever a student is, they should have support to fill in the gaps — to be able to practice things, to get immediate feedback on things, to get lessons on things — wherever they are."There's always a "summer slide" for students — a time when students regress as they fall out of pattern and often spend a portion of the new school year reviewing content. But the slide is deeper this year, thanks to the pandemic."Some of the research partners we work with think there may be a year of loss learning," Khan said. "Not only are kids not learning for those few months, but they're also atrophying — forgetting. And they're going to be out of school for so long; they'll have lost the habits of school."Khan said entire school districts and states aren't doing the educational prep they should be doing. Districts everywhere are scrambling to figure out what school will look like this fall and what their curriculum should entail."If we don't do a full-court press here, some very bad things could happen," Khan said.Right now, Khan Academy is working with school districts to prepare. They estimate a huge increase in users this fall."It's great, we're reaching 30 to 40 million. But, how do we reach them deeply, and how do we move the dial for them?" Khan said. "There's a billion kids we need to reach and reach deeply."Steyer says the way to reach those kids is through Congressional funding."We have been in touch with leaders on both sides of the aisle in House and Senate," Steyer said. "We almost had funding for the digital divide in the first major stimulus package, but it got taken out at the last minute. But we are optimistic that people will do the right thing once and for all and put the resources into the next stimulus package that will make it possible for all kids to do quality distance learning in this country."Steyer says the time is now for supporters to join their charge, or call local leaders so that they can, in some way, affect the learning loss and close the digital divide. 3778

Amazon is going to Middle Earth.The streaming service on Monday announced it is bringing J.R.R. Tolkien's fantasy epic to television, with a multiple season commitment.The television series will take place before the 2001 feature film "The Fellowship of the Ring," which kicked off the trilogy directed by Peter Jackson. 328

After almost two years circling an ancient asteroid hundreds of millions of miles away, a NASA spacecraft this week will attempt to descend to the treacherous, boulder-packed surface and snatch a handful of rubble.The drama unfolds Tuesday as the U.S. takes its first crack at collecting asteroid samples for return to Earth, a feat accomplished so far only by Japan.Brimming with names inspired by Egyptian mythology, the Osiris-Rex mission is looking to bring back at least 2 ounces (60 grams) worth of asteroid Bennu, the biggest otherworldly haul from beyond the moon.The van-sized spacecraft is aiming for the relatively flat middle of a tennis court-sized crater named Nightingale — a spot comparable to a few parking places here on Earth. Boulders as big as buildings loom over the targeted touchdown zone.“So for some perspective, the next time you park your car in front of your house or in front of a coffee shop and walk inside, think about the challenge of navigating Osiris-Rex into one of these spots from 200 million miles away,” said NASA’s deputy project manager Mike Moreau.Once it drops out of its half-mile-high (0.75 kilometer-high) orbit around Bennu, the spacecraft will take a deliberate four hours to make it all the way down, to just above the surface.Then the action cranks up when Osiris-Rex’s 11-foot (3.4-meter) arm reaches out and touches Bennu. Contact should last five to 10 seconds, just long enough to shoot out pressurized nitrogen gas and suck up the churned dirt and gravel. Programmed in advance, the spacecraft will operate autonomously during the unprecedented touch-and-go maneuver. With an 18-minute lag in radio communication each way, ground controllers for spacecraft builder Lockheed Martin near Denver can’t intervene.If the first attempt doesn’t work, Osiris-Rex can try again. Any collected samples won’t reach Earth until 2023.While NASA has brought back comet dust and solar wind particles, it’s never attempted to sample one of the nearly 1 million known asteroids lurking in our solar system until now. Japan, meanwhile, expects to get samples from asteroid Ryugu in December — in the milligrams at most — 10 years after bringing back specks from asteroid Itokawa.Bennu is an asteroid picker’s paradise.The big, black, roundish, carbon-rich space rock — taller than New York’s Empire State Building — was around when our solar system was forming 4.5 billion years ago. Scientists consider it a time capsule full of pristine building blocks that could help explain how life formed on Earth and possibly elsewhere.“This is all about understanding our origins,” said the mission’s principal scientist, Dante Lauretta of the University of Arizona.There also are selfish reasons for getting to know Bennu better.The solar-orbiting asteroid, which swings by Earth every six years, could take aim at us late in the next century. NASA puts the odds of an impact at 1-in-2,700. The more scientists know about potentially menacing asteroids like Bennu, the safer Earth will be.When Osiris-Rex blasted off in 2016 on the more than 0 million mission, scientists envisioned sandy stretches at Bennu. So the spacecraft was designed to ingest small pebbles less than an inch (2 centimeters) across.Scientists were stunned to find massive rocks and chunky gravel all over the place when the spacecraft arrived in 2018. And pebbles were occasionally seen shooting off the asteroid, falling back and sometimes ricocheting off again in a cosmic game of ping-pong.With so much rough terrain, engineers scrambled to aim for a tighter spot than originally anticipated. Nightingale Crater, the prime target, appears to have the biggest abundance of fine grains, but boulders still abound, including one dubbed Mount Doom.Then COVID-19 struck.The team fell behind and bumped the second and final touch-and-go dress rehearsal for the spacecraft to August. That pushed the sample grab to October.“Returning a sample is hard,” said NASA’s science mission chief, Thomas Zurbuchen. “The COVID made it even harder.”Osiris-Rex has three bottles of nitrogen gas, which means it can touch down three times — no more.The spacecraft automatically will back away if it encounters unexpected hazards like big rocks that could cause it to tip over. And there’s a chance it will touch down safely, but fail to collect enough rubble.In either case, the spacecraft would return to orbit around Bennu and try again in January at another location.With the first try finally here, Lauretta is worried, nervous, excited “and confident we have done everything possible to ensure a safe sampling.”___The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content. 4807

A woman who was caught on camera calling 911 dispatchers on a Black bird watcher in New York City’s Central Park will face charges.The Manhattan District Attorney announced Monday his office has initiated a prosecution of Amy Cooper for falsely reporting an incident.Cooper was walking her dog in the park in May and was seen on camera having a confrontation with a Black man, who was birdwatching at the time. The man, Christian Cooper (no relation to Amy Cooper) told Amy Cooper that by not putting her dog on a leash in that section of the park, she was in violation of park rules.In the cell phone video taken by Christian Cooper, Amy Cooper is heard talking to 911 dispatchers and telling them a Black man was threatening her life. Cooper was issued a Desk Appearance Ticket for an arraignment in October.In a statement posted online, the DA is asking others who have been “the target of false reporting to contact our Office. We are strongly committed to holding perpetrators of this conduct accountable.” 1019

Actor Rick Moranis was punched in the head, knocking him to the ground, in an unprovoked attack on Manhattan's Upper West Side, officials said Friday.New York City police confirmed a 67-year-old man was walking south on Central Park West near West 70th Street when an unidentified man hit him in the head with a closed fist Thursday around 7:24 a.m.Surveillance images of a person suspected of the attack were released by police. The images appear to show a man wearing a dark-colored "I (heart) NY" sweatshirt.Police also tweeted out the video of the unprovoked attack. 579

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