呼和浩特白内障模型(松原静止期女性乳房解剖模型) (今日更新中)

A student at Equestrian Trails Elementary School in Wellington, Florida nearly died last week from a freak accident. If it weren't for the quick thinking of his teachers, he likely would have.Annalisa Moradi and her 8-year-old Kolston are counting their blessings."Without them, this story would have been different,” Moradi said.Kolston, a third-grader, nearly died last Wednesday, all because of a wooden pencil."He's a hockey player, he's a lacrosse player. I think and worry all day long about what's going to happen to him and little did I know that it would be a pencil that would ultimately almost end his life,” Moradi said.Kolston had just sharpened the pencil and placed it point up in his backpack sleeve."When I went to go sit down, it stabbed me in my artery," Kolston said.The brachial artery in his arm was impaled. Half the pencil sank into the skin just above his armpit."I didn't really feel anything,” he said.And that’s why Kolston accidentally pulled the pencil out when he stood up. With blood pouring everywhere, Kolston immediately ran and told his nearest teachers."We plan for so much with our schools, our crisis response teams. Our first aid training and everything but this was just one of those things that wouldn't be written on a piece of paper to prepare for,” said Elizabeth Richards, one of the teachers who helped Kolston. "It was one one of those freak accidents, we knew that he needed medical attention immediately."Richards actually studied in nursing school before becoming a teacher. That background expertise took over, despite being surrounded by countless children walking around the hallways during class dismissal."We laid him down on the floor, applied continuous pressure to the point,” she said. "Other instincts take over and everything else around us didn't seem to matter. Kolston really is the true hero here. He came right out and got an adult."Teacher Mandi Kapopoulos used her own shirt sleeve create a tourniquet."I pulled my arm out of the sleeve and wrapped it around his arm where it was bleeding,” Kapopoulos said. "He was brave. He wasn't crying. He wasn't screaming."It took paramedics 20 minutes to arrive but the teachers stayed with Kolston the entire time, applying pressure to the wound."As a teacher and as a mother, I would want the same thing for my children, to put the kids first and to try in any situation like that to do what we need to do quickly and calmly," Kapopoulos said.Since the injury happened toward the end of school, Annalisa Moradi was actually at the front of the school waiting to pick her son up. Teachers informed her of what happened and helped take care of the other children while waiting for the ambulance."He was covered in blood and I knew if was obviously very serious," Moradi said. “Without the teachers and the principal, this story would have been different."It wasn’t until Moradi was en route that paramedics told her just how serious the injury was."When we were taking the ride in the ambulance, they told me if these teachers didn't place a tourniquet on his arm, we would have lost him," she said.With two staples in his arm, Kolston went back to school the very next day.His teachers hope this experience can be a lesson for other parents."As a mother of two children myself, knowing how precious life is -- our thanks and gratitude comes everyday when we watch Kolston walk through these hallways," Richards said.Moradi will make sure her son is more careful next time he packs his backpack."Even if you're in a hurry, there's a place for your pencil -- your pencil box! Slow down, take the time to put it in there," she said. "Just be aware of what's going on around you."Medical experts suggest that if you get impaled or stabbed, it’s best to leave the object in until paramedics arrive so that blood can’t escape the wound.As for Kolston, he did not need to get a blood transfusion, thanks to the teachers helping to stop the bleeding. His staples in his arm should be removed in a few days. 4091

A new species of prehistoric reptile has apparently been discovered within the depths of the Petrified Forest National Park in northeastern Arizona.Named Skybalonyx skapter, the fossilized remains are believed to be a new species of drepanosaur, a reported 220-million-year-old burrowing reptile that potentially looked like a combination of an anteater and chameleon, the Petrified Forest National Park said Tuesday in a news release.Skybalonyx skapter, though, may have looked even more peculiar, the release said.Drepanosaurs have been noted to have interesting features, such as "enlarged second claws, bird-like beaks, and tails ending with a claw," the release said.The discovery was made by research teams from Petrified Forest National Park, Virginia Tech, University of Washington, Arizona State University, Idaho State University, and the Virginia Museum of Natural History, according to the release.Their findings were reportedly published on Oct. 8 in the Journal of Vertebrate Paleontology. The study compared the claws of drepanosaurs to Skybalonyx skapter to modern animals, and reportedly found that Skybaonyx skapter's claws were similar to moles, echidnas, and mole-rats.Adam Marsh, the lead paleontologist at the Petrified Forest, said in an email that the bones were discovered during the summers of 2018 and 2019 as part of a paleontological dig.Due to their small size, the remains were reportedly difficult to find using traditional methods. Essentially, research teams used a series of metal screens and water to sift and break down rocks to find the fossils.He said the bones were found in the eastern expansion of the forest that was acquired in 2011. He said more than 3,000 fossils have been discovered there in the last two years.As for the drepanosaurs project, he said "we are just starting this project, and we will be continuing to collect fossils from this and other sites."This story was originally published by Josh Frigerio at KNXV. 1977

A nor'easter that left at least one person dead in the Northeast has mostly passed but hundreds of thousands of homes remain without electricity Friday.More than 530,000 customers are without power along the East Coast from Virginia to Maine after the region's second major storm in a week whipped the area with heavy snow and stiff winds, downing power lines and leaving precarious road conditions.Boston recorded six inches of snow on Thursday while parts of northwestern Massachusetts saw up to 24 inches, the National Weather Service said.A few lingering bands of snow and snow flurries are expected to move out of the region by Friday afternoon, CNN meteorologists said.  689

A news anchor has accused actor Kevin Spacey of groping her son, bringing the number of those accusing him of sexual misconduct to 14.Former TV news anchor Heather Unruh came forward on Wednesday with the new allegations and said the assault took place in July 2016. Unruh spoke during a press conference about the incident. She said Spacey sexually assaulted her son in 2016 when he was 18 years old. 424

A recent study by the U.S. Centers for Disease Control and Prevention found that 6% of more than 3,000 health care workers who were tested had antibodies to coronavirus. Still, after being retested 60 days later, 28% of them had antibody levels so low they were no longer detected."These results suggest that serology testing at a single time point is likely to underestimate the number of persons with previous SARS-CoV-2 infection, and a negative serologic test result might not reliably exclude prior infection," the authors of the study said.According to the CDC, blood samples were taken from 3,248 frontline health care personnel at 13 hospitals between April 3- June 19, 2020.194 of those healthcare workers had detectable antibodies to COVID, the agency said.Participants with higher initial antibody responses were more likely to have antibodies detected at the follow-up test than were those who had a lower initial antibody response, the study concluded.The authors added that the study shows that the window is limited for collecting potentially useful "convalescent plasma" from the blood of patients who have fought off COVID-19. 1151

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