潍坊算命哪里准-【火明耀】,推荐,五莲算命需要多少钱,通许算命哪里准,杭州有个算命的,六盘水有算命没,靖江哪里有算卦准的,石河子算命较准确的大师在哪
潍坊算命哪里准福州算命谁比较好,饶阳哪里有算命比较准的人,镇安算命哪个准,泊头哪里算命算得比较准,尚志有看相的吗,石门算命准点的地方,忠县哪里有算命的师傅
As the polar ice caps retreat, polar bears could struggle to survive by the end of this century, a number of university researchers wrote in a study published in the Nature Climate Change journal.The study looked at a number of sub-species of polar bears who live in the arctic and how they have adapted to reduced sea ice from 1979 to 2016. The group of researchers said that all but a few sub-species of polar bears will be able to reproduce and survive given projected conditions by 2100.Polar bears use sea ice to capture seals for food. When sea ice erodes for the summer, polar bears fast. Although polar bears are capable of fasting for months, there are limits to how long the bears can go without food.The researchers examined energy needs of polar bears, and that the amount of time polar bears would fast would lengthen to a point that makes it too challenging to survive and reproduce.While resting female polar bears can generally fast for longer periods of time, reproducing females, males and cubs all require shorter fasting periods, the research found.“Avoiding continued sea-ice decline requires aggressively mitigating greenhouse gas rise,” the researchers wrote, “and our results explicitly describe the costs to polar bears of avoiding that mitigation.”To illustrate how much sea ice is being lost, NOAA is projecting that the arctic could have ice-free summers by 2042.Scientists have long discussed the possibility that polar bears could become nearly extinct by the end of the century. Beyond reducing carbon emissions, proposals have included relocating cubs to areas of the Arctic expected to retain higher levels of sea ice have been proposed. To read the full study, click here. 1714
As the world sputters amid a global coronavirus pandemic that may have originated from bats in China, researchers released a study on Monday indicating that pigs could transmit a pandemic-level flu strain to humans.The Chinese and British based researchers, who published their findings in the Proceedings of the National Academy of Sciences on Monday, said that G4 EA H1N1 viruses in pigs should be closely monitored in human populations, especially among workers in the swine industry.The researchers said that pigs are intermediate hosts for the strain of influenza, which researchers are concerned could spread to humans. A further concern is that humans could spread the virus to other humans, prompting a pandemic. While the study notes that the virus had spread to workers in the swine industry, it likely has not been transmitted from humans to humans.“G4 viruses have all the essential hallmarks of a candidate pandemic virus,” the team of UK researchers wrote.The researchers said G4 viruses bind to human-type receptors, produce much higher progeny virus in human airway epithelial cells, and show efficient infectivity and aerosol transmission in ferrets.While the study indicates cause for some concern, Martha Nelson, an evolutionary biologist at the U.S. National Institutes of Health’s Fogarty International Center, told Science Magazine the chances of a pandemic from G4 viruses are “low,” but added that no one knew the pandemic risk of H1N1 until 2009.“Influenza can surprise us,” Nelson told Science. “And there’s a risk that we neglect influenza and other threats at this time” of COVID-19.Nelson added to Science that given the warning, it would be ideal to produce a human G4 vaccine as the world still needs to be vigilant on other pandemics besides COVID-19.Domestically, the University of Missouri reviewed the research. 1855
As the Thanksgiving holiday approaches, college campuses across the country will empty out. Tens of thousands of students will head home for the break, and public health experts fear mass travel and indoor gatherings could spark a super spreading of the coronavirus.Within days of returning to campus this fall, Brianna DeWall contracted the coronavirus.“We went out to party, and with all my friends, got it,” recounted the Oklahoma State University junior. “So, we're assuming someone at that party had it and didn't know.”According to the Centers for Disease Control and Prevention (CDC), the return to college campuses in August and September coincided with a 55 percent increase nationally of COVID-19 cases in young adults ages 18 to 22.Next week, DeWall is headed home for the holidays, but she plans to get tested before she travels.“I will be flying, so I feel like that's a precaution I should take,” said DeWall.While her school isn’t requiring mandatory exit testing, other schools are.Penn State is offering free, voluntary exit tests. The University of Michigan has made exit testing mandatory, and New York State’s university system is also mandating a negative test result for all of its 140,000 students before they leave campus.“Some people may get a test that's not going to decrease the risk to zero, but it is going to decrease the risk substantially,” said Dr. Amesh Adalja, a senior scholar with the Johns Hopkins Center for Health Security.Dr. Adalja warns that without extra precautions like frequent testing, mask-wearing, social distancing, and self-quarantining ahead of the holiday, the risk of community spread is increased.“It is going to be a major challenge when you have your student body moved from campus back home and come back on campus because that's likely to introduce more levels of infection,” he said.Earlier this year, researchers at Ball State University tracked 7.5 million students at more than 1,300 universities and concluded that thousands of college students may have picked up COVID-19 while at densely-packed spring break destinations, only to return to infect others with the virus.Some schools like DeWall’s are not having students return to campus until January and have canceled spring break. But once again, testing is voluntary.“I think we should have to get tested before we come back,” said DeWall. “I think it's very careless that they aren't requiring us to get tested before we go home.”The CDC hasn’t issued any specific COVID-19 guidance on colleges and break, and while the American College Health Association encourages testing, it stops short of calling for it to be mandatory.“Colleges we know have been hot spots for infection, especially with off-campus activity,” said Dr. Adalja. “So, I do think this is going to be particularly challenging to accomplish.” 2839
As screen time becomes a bigger part of students’ lives, preserving their vision is something to keep an eye on.Dr. Lauren Schneider, an ophthalmologist who has been treating patients in New York and Connecticut for six years warned screen time can cause a number of symptoms, including squinting and eye-crossing.“We do know that prolonged near work can place some children at risk for progressive myopia, which is worsening nearsightedness,” Dr. Schneider said.Doctors say tips on preserving your kids' vision during remote learning include making sure they keep a safe distance from their devices — at least 15 inches away from the screen is recommended — having them take screen breaks every 20 minutes and investing in a blue light blocker, which can be put on devices or glasses.“Some of our data suggests blue light emitted from our electronic devices may potentially be harmful long term to the center of the retina,” said Schneider Sunday.As school districts in the tri-state area continue to reopen this fall with full remote or hybrid learning models that include screen-based instruction, eye protection is another safety measure doctors say parents should have their sights on.“We want to make sure that while our students are hard at work which is going to require a lot of time in front of the computer that we’re avoiding unnecessary eye strain," Schneider said.According to medical experts, the full long term impacts on the eyes from remote learning are still being looked at, regular eye exams are highly recommended.For more tips and resources:www.visiontolearn.orgwww.childrenseyefoundation.orgwww.kidshealth.orgThis story was first reported by Jennifer Bisram at PIX11 in New York City, New York. 1726
BALTIMORE — Scammers are using the COVID-19 pandemic and financial crisis to take advantage of unemployed workers.Like millions of others, Daniel Martin recently lost his job, but he caught a break with a new company.“I was really excited. It sounded like a really good position with a lot of possibilities of growth within the company. It just seemed like something I was looking for,” said Martin.He received a contract and was assigned a project. The company, Gap Systems LLC, was moving their offices to Baltimore and needed him to procure new equipment. Since he wasn’t full-time just yet, he’d have to purchase the laptops with his credit card and the company would reimburse him.“The next two weeks, I completed a total of three purchase orders and all of the payments were posting perfectly fine,” Martin said.A few weeks later, the charges suddenly reversed and Martin’s credit card balance exceeded ,000.After speaking with a bank representative, he learned the account owner had reported the charges as fraudulent.“They probably in some other way scammed someone else to get their account and routing number and then they gave me that information to pay my credit card,” said Martin.Martin feels he should’ve known better, but his excitement clouded his judgment. And this is happening to job hunters around the country. According to the Federal Trade Commission, consumers reported losing 0 million to these scams in the first nine months of 2020.This week, the FTC along with 19 federal, state, and local law enforcement partners, announced a crackdown on scams targeting consumers with fake promises of income and financial independence.More than 50 enforcement actions were taken against operators of work-from-home and employment scams, pyramid schemes, investment scams, bogus coaching courses, and other schemes.“If at any point during any part of the process they ask you to buy anything, just don’t,” said Martin.Especially with checks. It’ll likely bounce then you’re on the hook for that money.And if someone contacts you about a j