河南全口制作步骤(人体针灸模型 26CM 中文多少钱) (今日更新中)

Uranium ore stored at the Grand Canyon National Park museum may have exposed visitors and workers to elevated levels of radiation, according to the park's safety, health and wellness manager.Elston Stephenson told CNN that he began asking officials from the National Park Service and Department of the Interior last summer to warn workers and tourists they had possibly been exposed to unsafe levels of radiation. After his requests were ignored, he said he sent an email to all park staff at the Grand Canyon on February 4."If you were in the Museum Collections Building (bldg 2C) between the year 2000 and June 18, 2018, you were 'exposed' to uranium by OSHA's definition," said the email, which Stephenson provided to CNN."Please understand, this doesn't mean that you're somehow contaminated, or that you are going to have health issues. It merely means essentially that there was uranium on the site and you were in its presence. ... And by law we are supposed to tell you."The National Park Service is investigating what happened and working with the Occupational Safety and Health Administration and the Arizona Department of Health Services, according to the Department of the Interior, which oversees the park service."Uranium naturally occurs in the rocks of Grand Canyon National Park. A recent survey of the Grand Canyon National Park's museum collection facility found radiation levels at 'background' levels -- the amount always present in the environment -- and below levels of concern for public health and safety. There is no current risk to the public or Park employees," the department said in a statement provided to CNN. The National Park Service also said there is "no current risk" to the public or park employees."The museum collection facility is open and employee work routines have continued as normal," Emily Davis, spokeswoman for the Grand Canyon National Park, said in a statement. "The NPS takes public and employee safety and the response to allegations seriously. We will share additional information about this matter as the investigation continues."Stephenson told CNN that in early June he found out about three 5-gallon buckets of uranium ore that had been stored next to a taxidermy exhibit at the park's museum for nearly two decades. He said he immediately contacted a park service radiation specialist to report the danger.According to a report from a park service radiation safety officer who responded to Stephenson's request on June 14, 2018, testing results were positive for radioactivity above background levels near the buckets, but elsewhere the radiation levels were not elevated.Still, according to the report, the park service decided to remove the buckets on June 18 and dispose of the contents in the nearby Lost Orphan uranium mine, where the ore had come from.Stephenson told CNN that park service workers were inadequately prepared to handle the radioactive material, moving the buckets wearing gardening gloves purchased at a general store, and using mop handles to lift the buckets into pickups for transport.Stephenson said that after trying and failing for months to get National Park Service officials to inform employees and the public about the possible uranium exposure, he filed a complaint with OSHA in November.The next day, Stephenson said, OSHA sent inspectors in protective suits to check the museum and found that park service workers brought the buckets back to the park facility after dumping the uranium ore."OSHA has an open investigation on the issue that was initiated on November 28," OSHA spokesman Leo Kay said in statement to CNN, declining to comment further on an active investigation.Staff for US Rep. Tom O'Halleran, D-Arizona, met with Stephenson in December, according to Cody Uhing, the congressman's communications director."We flagged this to the Natural Resources Committee, which is responsible for oversight for that area. They and we have requested the Department of the Interior's Office of the Inspector General to look into it and provide us with a report," Uhing said.The Department of the Interior's Office of the Inspector General confirmed Tuesday that it had received a letter from O'Halleran and that it would review it.Anna Erickson, associate professor of nuclear and radiological engineering at Georgia Tech, said the uranium exposure at the museum is unlikely to have been hazardous to visitors."Uranium ore contains natural (unenriched) uranium which emits relatively low amounts of radiation," Erickson said. "Given the extremely low reading (zero above background) 5 feet away from the bucket, I'm skeptical there could be any health hazards associated with visiting the exhibit."Stephenson told CNN that tours of schoolchildren often walked by the buckets at the museum, but his larger concern was for park employees and high school interns working near the uranium every day."A safe workplace really is a human right," he said. 4984

Vacationers headed to Florida for the Labor Day holiday and the unofficial close of summer are in for a nerve-racking weekend. 138

Wednesday is World Kindness Day, and WQED is encouraging YOU to express your kindness by wearing a cardigan sweater in the spirit of Fred Rogers. Happy #CardiganDay! ?? https://t.co/j3i8DzClit— WQED Pittsburgh (@wqed) November 10, 2019 247

When Jill Lorentz was in her 20s, she said her mother started showing signs of forgetfulness. “As we got a little bit older, she started having mild memory loss and we didn’t think anything of it really," she recalled. "We just thought it comes with age.” However, she later learned her mother had Alzheimer’s Disease, a form of dementia.“She would ask you the same question that you had just answered,” Lorentz explained.Dementia causes a decline in memory, language, and problem solving.“The disease takes them in a place in the progression where they start losing the ability to go A to Z on any action,” Lorentz said. Lorentz saw this happen to her mom over the years, and eventually, to other members of her family, too. “We have had eight people in our family with some type of dementia,” she said.Every 65 seconds, someone in the U.S. develops Alzheimer’s Disease. Nearly six million people in the U.S. over the age of 65 are living with it, according to 2020 stats from the Alzheimer’s Association. “A lot of the focus is on today, what do we do now that we don’t have a cure and every little in the way of a treatment,” Amelia Schafer, the executive director of Alzheimer’s Association Colorado Chapter, said. “We now have more people living with Alzheimer’s and dementia than ever in our country and when we look at the trajectory we know it’s not slowing down.”One of the biggest risk factors is age.“Age is the number one risk factor so as we are aging as a population here in the U.S. it’s possible we’re more at risk,” said JJ Jordan, the Community Chair for Dementia Friendly Denver, a nonprofit that educates communities about dementia.As more people enter the later years of their life, with more awareness and more knowledge of the warning signs, different types of dementia are able to be diagnosed easier today than before.“I get about 90, 95 percent of my diagnosis from talking to them, getting to know them,” Dr. Samantha Holden, a behavioral neurologist with University of Colorado Health, said. “Even though we can’t cure these things, we can definitely manage them and make sure we’re improving people’s quality of life.”That’s where caregivers like Lorentz play an important role in the life of someone who has been diagnosed. After learning lessons taking car of her mom, she is now a caregiver to her sister, Judy, who also has dementia and lives in another state.“The one thing that I’ve done with my sister is having really open and honest conversations with her and having a safe place for her to come,” Lorentz said. 2561

WESTERVILLE, Ohio - Former Vice President Joe Biden said on Tuesday at the Democratic presidential debate that he and his son Hunter did not commit any wrongdoing by advocating for the dismissal of a Ukrainian prosecutor while his son was employed by a Ukrainian company under investigation. "My son did nothing wrong," Biden said. "I did nothing wrong. I carried out the policy of the United States government in rooting out corruption in Ukraine. And that's what we should be focusing on."The issue did not get much airplay on Tuesday from other candidates. The only candidate who was asked about Biden's conduct was Sen. Bernie Sanders, who opted not to attack Biden. In 2016, Sanders also did not go after opponent Hillary Clinton for her handling of government emails on a personal server. But it appeared at least one other candidate wanted to expound on Biden's conduct as moderators moved on. One of the candidates who tried to interject could be heard saying, "It is wrong to move on."Candidates agree on impeachmentThe opening question at Tuesday’s debate was on why President Donald Trump should be removed from office instead of waiting for voters to decide next November. All 12 Democrats on stage have come out in support of impeachment of Trump.Several candidates, including Sanders and Biden, said that Trump is the “most corrupt president in history.”Among those on stage, there were six current members of Congress. Among them are five U.S. senators who could be asked to consider convicting Trump and removing the president from office. “The president has not been putting America ahead of his own interests,” Minnesota U.S. Senator Amy Klobuchar said. The candidates agreed that Trump’s phone call to Ukraine’s president was an impeachable offense. While the candidates agreed that Trump crossed a red line, some of the candidates cautioned fellow Democrats. "If the House votes to impeach, the Senate does not vote to remove Donald Trump, he walks out and he feels exonerated, further deepening the divides in this country that we cannot afford," said Congresswoman Tulsi Gabbard, who said Democrats should accept that Trump won the 2016 election. Warren refuses to say 'Medicare For All' would increase taxesMassachusetts Sen. Elizabeth Warren, a supporter of "Medicare For All," was pressed on whether taxes would go up under her plan. Warren refused to say that middle class taxes would go up, instead saying that costs would go down. "I have made clear what my principles are here. Costs will go up for the wealthy and big corporations,” Warren said.South Bend Mayor Pete Buttigieg said it was a simple yes or no question that Warren refuses to answer. "That didn't get a yes or no answer,” Buttigieg said. “This is why people here in the Midwest are so frustrated with Washington in general and Capitol Hill in particular.”Sanders, also a supporter of "Medicare For All," said that it is fair to say taxes would go up with the plan. "As somebody who wrote the damn bill, let's be clear: Under the Medicare For All bill I wrote, premiums are gone, co-payments are gone, deductibles are gone. All out of expenses are gone," Sanders said.Sanders said that a "Medicare For All" plan would cost trillion over 10 years. Overall, Americans spend .5 trillion in healthcare per year, the Congressional Budget Office says. But the CBO could not put an estimate on exactly how much the average person would spend with a Medicare-for-All system. A CBO report says a number of factors, such as whether state governments will pay into the system and whether citizens can opt out of public insurance all options, would affect costs.The CBO states that the federal government has lower administrative costs than private insurance. The cost to administer all of Medicare was 6 percent, compared to 12 percent for private insurers in 2017, the CBO says.The CBO added that administrative costs could decrease even further as a Medicare-for-All system would have fewer eligibility exclusions.Protests line streets near the debateHundreds of protesters supporting Trump and other Democratic candidates lined the streets of Westerville as debate attendees walked by. At times, police officers used bicycles to push protesters back onto the sidewalk. Most of the protesters remained several city blocks away as the debate was held at a private university. 4377

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