颅骨带肌肉模型价格(长春平滑肌纤维模型) (今日更新中)

For more than a decade, Dawn Comstock has studied sports injuries among high school athletes, collecting data from hundreds of high schools across the country.She says after going over all the numbers, something began to stand out about men and women’s lacrosse.“We really just set out to ask the question, "how much of the concussions of girls lacrosse could be directly attributed to the fact that they are prohibited from wearing the hard shell helmet with the full facemask that’s required in boys lacrosse?" said Comstock.Ann Kitt Carpenetti from US Lacrosse says the differences create almost a different game with different issues.“The game rules are different, the culture is different, we do recognize that injuries do occur in both games," said Carpenetti.There’s no body checking, basically a running shove, in women’s lacrosse like there is in the men’s game. Because of that rule, women's lacrosse players don't wear helmets.But Comstock and fellow professor Sarah Fields found that rule isn't keeping female players from getting hurt.“What we found was 72.7% of all of the concussions among girls high school lacrosse players resulted from being struck by a stick or a ball," said Comstock.Almost three quarters of concussions among women's players have nothing to do with player-to-player contact.The researchers estimated that by requiring them to wear helmets, they could reduce the total concussions in the sport by 45%“61.5% of the concussions that resulted from being hit by the stick or the ball in girls lacrosse players could have been prevented if they had been wearing the same helmet the hard shell helmet with the full facemask that boys lacrosse players are required to wear,” said Comstock.US Lacrosse says it has a helmet designed for women’s lacrosse and is testing it in Florida“In terms of the rate of head injuries caused by stick and ball, some concussive, some other, we agree it was notable. And that’s why we led the development of the ASTM head gear back in 2008,” said Carpenetti.The helmet is softer and has less coverage than the male helmet, and right now it’s optional in all states except Florida. Depending on the results of an ongoing study of it’s effectiveness it could be rolled out across the country.But for Fields and Comstock, that rollout is inching along at a painful rate."Sport culture, loves to move at a glacial pace, I mean we're still arguing about designated hitters in baseball. So we don't like change in sport and we pretend like change can't happen in sport," said Sarah Fields, CU Denver.Change Comstock and Fields say would help prevent nearly half the concussions in women’s lacrosse. 2662

First lady Melania Trump's spokeswoman went after rapper T.I. Tuesday, whose most recent music video features a Trump lookalike dancing without clothes in a fake Oval Office."Like it or not, she is the first lady and this is the White House," Stephanie Grisham, Trump's communications director, told CNN in a statement. "It's disrespectful and disgusting to portray her this way simply because of politics. These kinds of vulgar attacks only further the divisiveness and bias in our country -- it needs to stop." 520

Former Michigan Governor Jennifer Granholm has been picked by President-elect Joe Biden to run the Energy Department, the Associated Press confirmed and was first reported by Politico.The department plays a key role in helping develop the technologies needed to fulfill Biden's pledge to move the country off fossil fuels.Granholm served two terms as Michigan's Governor and is experienced in dealing with the auto industry, which could be an advantage as the president-elect seeks to speed up the roll out of electric vehicles and the network of charging stations used to power them.If confirmed, Granholm would be the second woman to lead the department since its creation in 1977."She really worked very hard in 2016 to place herself as Energy secretary with the Clinton team," said Skip Pruss, the director of the Michigan Department of Energy, Labor, and Economic Growth under Granholm. "She’s really a student of the [energy] transition. If you were to ask me what was a limitation in Michigan, I would say that she was slightly ahead of her time."This article was written by Kellen Voss for WXMI. 1111

FRESNO, Calif. (AP) — An elementary school superintendent in Central California says he allowed a janitor to wear a mask and carry a fake gun during an active shooter drill to "make sure this was realistic."A teacher told KSEE-TV that the drill, which happened at Raisin City Elementary School before the summer break, went too far.Kim Copper said the masked gunman pounded on her classroom door and tried to open it as she huddled in a corner with terrified students.School Superintendent Juan Sandoval admitted teachers and students were not told about the janitor's role. He said active shooter drills have become routine and he wanted students to understand the gravity of the situation.A school board official told the station the school will improve its active shooter training procedure. 802

For the most part, we've already been sheltering in our homes as we all try to get a grip on the pandemic. And this holiday season, which started Thursday with the first day of Hanukkah, families are looking for ways to make it special.Rabbi Robert Nosanchuk says his team is helping families celebrate Hanukkah safely at home through live stream services online.“Many participants will light candles together on Zoom. So, we'll literally light up the internet,” Nosanchuk said.And while you may not be able to give gifts in person this year, you can still offer the traditional monetary Hanukkah gift virtually.But this year, Nosanchuk is asking families to focus ways to build a more peaceful and just society.“Whatever faith you may be representing, I hope you'll know that your Jewish neighbors are holding their Hanukkah menorah by the window to publicize that miracles do happen,” Nosanchuk said. “I pray strongly that we'll all be healed. We'll feel well in the new year.”This story was originally published by Taneisha Cordell at WEWS. 1051

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