上海胶质脑瘤能活多长时间(上海乳类结节影符合bⅰ-rads分3) (今日更新中)

SEATTLE (AP) — U.S. scientists said Friday they will investigate why an unusual number of gray whales are washing up dead on West Coast beaches.About 70 whales have been found dead so far this year on the coasts of California, Oregon, Washington and Alaska, the most since 2000. About five more have been discovered on British Columbia beaches. That's a very small fraction of the total number of whales believed to have died, because most simply sink and others wash up in such remote areas they're not recorded.NOAA Fisheries on Friday declared the die-off an "unusual mortality event," providing additional resources to respond to the deaths and triggering the investigation."Many of the whales have been skinny and malnourished, and that suggests they may not have gotten enough to eat during their last feeding season in the Arctic," agency spokesman Michael Milstein told reporters during a conference call.The eastern North Pacific gray whales were removed from the endangered species list in 1994, after recovering from the whaling era.The population has grown significantly in the last decade and is now estimated at 27,000 — the highest since surveys began in 1967. That has raised questions about whether their population has reached the limit of what the environment can sustain. Another theory suggests that the loss of Arctic sea ice due to global warming is a culprit.The whales spend their summers feeding in the Arctic before migrating 10,000 miles (16,000 km) to winter off Mexico. Though they eat all along their route, they are typically thinning by the time they return north along the West Coast each spring.They eat many things, but especially amphipods, tiny shrimp-like creatures that live in sediment on the ocean floor in the Arctic. For many years, researchers noted that fewer calves tended to be born following years when the ice in the Chukchi Sea, north of the Bering Strait between Alaska and Russia, was late to melt. The whales had less time to feast because they couldn't access the feeding area, and thus had less blubber to sustain them on their next migration.Last year, though, the Artic was unusually warm. The whales weren't blocked from the feeding area, and yet are still struggling this year. That has scientists wondering if the loss of sea ice has led to a loss of algae that feed the amphipods. Surveys show the amphipod beds moving farther north, said Sue Moore, a biological oceanographer at the University of Washington."The sea ice has been changing very quickly over the last decade or so," she said. "The whales may have to shift to other prey, such as krill or other things they eat."In an average year, about 35 whales wash up in the U.S.In 2000, more than 100 did, prompting NOAA to declare an "unusual mortality event" then as well. The resulting investigation failed to identify a cause. The die-off followed strong changes in ocean conditions in the mid-1990s, suggesting that warmer water patterns affected the availability of prey, but scientists were often unable to perform necropsies, Moore said."It's sometimes very difficult to get to these whales in a timely fashion," she said. "You can't always get the kind of samples you would need for diagnostic reasons."Since then, researchers have built up an improved network of volunteers and have better educated the public to help report and respond to whale deaths, said Deborah Fauquier, veterinary medical officer at NOAA's Office of Protected Resources. This time around, scientists have been able to perform necropsies on 20 of the whales, she said.John Calambokidis, a research biologist with the Cascadia Research Collective, noted that as the whales search farther afield for food, they've entered areas where they're not normally seen so often, including San Francisco Bay and Puget Sound. That puts them at higher risk of being struck by ships or entangled in fishing gear.Four of the 10 gray whales found dead near San Francisco this year were struck by ships, and a number of shipping companies have slowed their vessels in the area to avoid collisions. 4086

SANTEE, Calif. (KGTV) - A heartbroken dog owner in Santee is hoping to warn others after coyotes attacked her dog while she was walking him on a leash.Presley, an eight-year-old Silky Terrier, was small with a big personality. "Just a loving dog and wild personality. He would always protect me," said Michelle Cimmarrusti.The instinct was on display around 5 a.m. Tuesday. On Palm Glen Drive, on the edge of her condo complex, Cimmarrusti was taking Presley out for a quick walk. Her retractable leash was stretched out about five feet. "On the sidewalk near a bush, I felt Presley tug. Thought he wanted to sniff a bush. That's when the two dogs came out," said Cimmarrusti.Cimmarrusti quickly realized they weren't dogs, but aggressive coyotes."Just horrifying. My brain just went numb at the time," said Cimmarrusti.The protective Presley barked and lunged. As she pulled frantically on Presley, the clasp on her collar broke, and Presley took off. Cimmarrusti says it was a blur, but Presley and the coyotes ended up in the street before disappearing into the complex."I kept screaming at the top of my lungs for his name," said Cimmarrusti.About ten minutes later, a neighbor found a bloodied Presley, who died in Cimmarrusti's arms on the way to the pet emergency clinic."I just couldn't get to him quick enough," she said, choking back tears.She has since learned another dog was killed by a coyote in the same area weeks ago. Experts say coyotes attacking a leashed dog is a sign they're getting more aggressive in an area and getting less afraid of humans, whether it's food scarcity or the unintentional feeding of coyotes."Please be cautious. If I can help one person and their dog, I'll be grateful. Keep them on a tighter leash. Don't let them far and keep aware of your surroundings," said Cimmarrusti. 1825

Sen. Elizabeth Warren says she isn't running for president in 2020."I am not running for president in 2020," Warren told CNN's Jim Acosta on Saturday.Warren, a Massachusetts Democrat and staunch critic of President Donald Trump, made the statement in an interview for CNN's "State of the Union."Acosta also asked if she gets upset when President Donald Trump refers to her as "Pocahontas.""It's about my family's story. Because my family's story is deeply a part of me and a part of my brothers," Warren said. "It's what we learned from our parents. It's what we learned from our grandparents. It's what we learned from our aunts and uncles."I went to speak to Native American tribal leaders and I made a promise to them that every time President Trump wants to try to throw out some kind of racial slur, he wants to attack me, I'm going to use it as a chance to lift up their stories," she added.While speaking at a campaign rally in western Pennsylvania Saturday night, President Trump brought back his derisive nickname for Warren. He predicted that the media would be bored covering her 2020 election campaign."If I don't win the election, (news) ratings are going to go so far down, they'll be out of business, every one of them," Trump told a crowd of supporters. "Can you imagine? Can you imagine covering Bernie or Pocahontas? Pocahontas, how about that?"The lawmaker said the same thing about her political future to Chuck Todd of NBC News in an interview for "Meet the Press" when pressed about her Senate re-election campaign and her pledge to fulfill her six-year term."For the people of Massachusetts, and for the people across this country," Warren said. "This government is working better and better and better for a thinner and thinner slice at the top. I am in these fights, and I am in this fight to retain my Senate seat in 2018. That's where I'm focused. That's where I'm going to stay focused. I'm not running for president." 1954

SEASIDE HEIGHTS, N.J. — Police in Seaside Heights had their hands full Monday night, doing crowd control to break up hundreds of young people partying at the infamous "Jersey Shore" house.The large gathering at the famous MTV reality show property was hosted by popular YouTube stars the Nelk Boys, NJ.com reported.The Nelk Boys are a trio known for pulling extreme pranks and stunts for their videos.Clips from the YouTubers' Instagram account – which boasts more than 3 million followers – showed throngs of fans cheering and crowding Monday afternoon outside the Jersey Shore house reportedly rented by the trio.Police and security are seen trying to keep the crowd at bay, with most young people seen in the videos not wearing masks.Video posted to Twitter by user @PastryChefTracy shows hundreds of people streaming out of the property as police surrounded the area Monday night. 892

SANTEE, Calif. (KGTV) — Santee voters this November will weigh in on two measures that deal with limits on serving as a City Council member or as Mayor.Measure Q and R each intend to address term limits on City Council and Mayoral positions in the city of Santee, however, they each take a different approach to limit how long someone can serve.The text of Measure Q reads as follows:City of Santee - Measure Q: "Shall the measure amending the Santee Municipal Code to require that no person shall serve as an 'Elected Official,' defined to include the offices of Mayor and Member of the City Council, for more than twelve years, or three terms, whichever is less, with any portion of term, whether by election or appointment, counting as a full term, be adopted?"Measure Q would not allow anyone to serve as either Mayor or a City Council member, or any combination of those positions, for more than 12 years, or three four-year terms, with any portion of a term counting as a full term.The competing measure, Measure R, reads as follows:City of Santee - Measure R: "Shall an ordinance amending the Santee Municipal Code to establish a three-term lifetime limit on City Council service and a separate two-term lifetime limit on Mayoral service, be adopted?"In other words, no one can serve as Mayor for more than two, four-year terms and, separately and in addition, as a City Council member for three, four-year terms, regardless of the district a person represented. For both term limits, a partial term of more than two years, whether held by election or appointment, would be counted as a full term.You can read the full text and arguments for Measure Q here.You can read the full text and arguments for Measure R here. 1732

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