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山西哪里肛肠科好
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发布时间: 2025-05-30 13:18:18北京青年报社官方账号
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The holiday shopping season is upon us and it’s never too early to start scoping out gift ideas, especially for the children in your life. It can be hard to shop for kids because of rapidly changing toy trends and the sheer amount of choices in stores. To help make things easier, some of the nation’s largest retailers have already released toy catalogs highlighting some of the year’s hottest toys. 413

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The father of a South Carolina fifth-grader who died last week after a fight at her elementary school is demanding answers over his daughter's death. 161

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The moon is slowly shrinking over time, which is causing wrinkles in its crust and moonquakes, according to photos captured by NASA's Lunar Reconnaissance Orbiter.Unlike Earth, the moon doesn't have tectonic plates. Instead, as the moon's interior has cooled over the last several hundred million years, it has caused the surface to wrinkle as it shrinks. Unlike the flexible skin of a grape when it shrinks into a raisin, the moon's brittle crust breaks. This creates stair-step cliffs called thrust faults as part of the crust is pushed up and over another close part of the crust.There are now thousands of cliffs scattered across the moon's surface, averaging a few miles long and tens of yards high. The orbiter has taken photos of more than 3,500 of them since 2009. In 1972, Apollo 17 astronauts Eugene Cernan and Harrison Schmitt had to ascend one of these cliffs, the Lee-Lincoln fault scarp, by zig-zagging the lunar rover over it.Today the moon is 50 meters "skinnier" because of this process. And as it shrinks, the moon actively produces moonquakes along the faults. Researchers re-analyzed seismic data they had from the moon to compare with the images gathered by the orbiter.Data from the seismometers placed on the moon during the Apollo 11, 12, 14, 15 and 16 missions revealed 28 moonquakes recorded between 1969 and 1977. Researchers compared the location of the epicenters for those quakes with the orbiter imagery of the faults. At least eight of the quakes occurred due to activity along the faults. This rules out the possibility of asteroid impacts or rumblings from the moon's interior.This means that the Apollo seismometers recorded the moon shrinking, the researchers said. The study of Apollo seismic data and analysis of more than 12,000 of the orbiter's photos were published Monday in the journal 1841

  

The Dow hit 27,000 points for the first time ever on Thursday, as stocks climb higher on hopes of an interest rate cut later this month.Federal Reserve Chairman Jerome Powell shored up rate cut hopes with his testimony before the Senate Banking Committee Thursday and House Financial Services Committee Wednesday.The Dow rose to a fresh all-time intraday high before pulling back slightly. It is up 0.4% or 111 points.The S&P 500 is up a modest 0.1%. 466

  

The American Academy of Pediatrics is calling on the U.S. Consumer Product Safety Commission to immediately recall the Fisher-Price Rock 'n Play after it has been tied to at least 32 sleep-related infant deaths. A new analysis by Consumer Reports, published on April 8, has tied 32 infant deaths to the rocker. This comes after it was tied to AAP says the previous warning did not go far enough to ensure safety and protect infants. That warning asked parents to stop using the product when the infant reaches 3 months of age or is capable of rolling over. The new Consumer Reports analysis concluded that the 32 deaths, which took place between 2011 and 2018, included babies that were less than 3-months old. The cause of death listed for some of the babies was asphyxia, or the inability to breathe caused by the babies’ position. “This product is deadly and should be recalled immediately,” said Kyle Yasuda, MD, FAAP, president of the American Academy of Pediatrics. “When parents purchase a product for their baby or child, many assume that if it’s being sold in a store, it must be safe to use. Tragically, that is not the case. There is convincing evidence that the Rock ‘n Play inclined sleeper puts infants’ lives at risk, and CPSC must step up and take immediate action to remove it from stores and prevent further tragedies.” AAP is urging parents of children of all ages to stop using the product immediately. They say stores should remove the rocker from their shelves. “We cannot put any more children’s lives at risk by keeping these dangerous products on the shelves,” said Rachel Moon, MD, FAAP, chair of the AAP Task Force on SIDS. “The Rock ‘n Play inclined sleeper should be removed from the market immediately. It does not meet the AAP’s recommendations for a safe sleep environment for any baby. Infants should always sleep on their back, on a separate, flat and firm sleep surface without any bumpers or bedding.” 1949

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