沈阳的青春痘去哪治(沈阳市那家医院看皮肤科的好) (今日更新中)

BEIJING, China – China has decided to lock down three cities that are home to more than 18 million people in an unprecedented effort to try to contain the deadly new viral illness that has sickened hundreds and spread to other cities and countries in the Lunar New Year travel rush. Normally bustling streets, shopping malls, restaurants and other public spaces in Wuhan were eerily quiet Thursday. Barriers blocked the entrance to the city's train station, and the airport, ferries, subways and buses were also halted. Similar measures will take effect Friday in the nearby cities of Huanggang and Ezhou. The coronavirus, known as "2019-nCoV," emerged in Wuhan in December and has killed 17 people so far. All of them were in and around Wuhan. 756

BREAKING: @kcpolice & @CityOfIndepMO police on scene of a shooting at a nightclub on Highway 40 off South Noland Road. @41actionnews pic.twitter.com/uLgzLtgfLM— Andres Gutierrez (@AFGutierrez) January 20, 2020 225

As computers, tablets and cellphones have become a growing part of our lives, the exposure to blue light emitted from these devices increases. While blue light exposure has been known to cause strain in eyes, Oregon State University researchers studied the effect of blue light exposure on aging. Based on to their findings, exposure to blue light could cause aging to accelerate. For their study, researchers used common fruit flies and exposed them to 12 hours of blue LED light and 12 hours of darkness. To compare, researchers kept a group of flies in total darkness, as well as a group of flies that were exposed to light that had the blue wavelengths filtered out. The researchers said they chose fruit flies because their cellular and developmental mechanisms are similar to humans.The researchers said that flies exposed to blue LED light sustained damage to their retinal cells and brain neurons and had impaired locomotion. Even more stunning, some of the flies, which exhibited some brain damage, were mutants that did not develop eyes."The fact that the light was accelerating aging in the flies was very surprising to us at first,” said Jaga Giebultowicz, a professor of integrative biology at Oregon State. “We’d measured expression of some genes in old flies, and found that stress-response, protective genes were expressed if flies were kept in light. "We hypothesized that light was regulating those genes. Then we started asking, 'what is it in the light that is harmful to them,' and we looked at the spectrum of light. It was very clear cut that although light without blue slightly shortened their lifespan, just blue light alone shortened their lifespan very dramatically.” 1708

As colleges across the country have canceled classes for the remainder of the year in the hopes of limiting the spread of COVID-19, Liberty University in Virginia is welcoming students back to campus.An order by Virginia Gov. Ralph Northam that bans gatherings of more than 10 people means that Liberty won't be able to hold-in person classes. But the school will still hold online classes and plans to allow students to live on-campus for the remainder of the school year.A page on 495

As we enter the summer season, a reminder from the Centers for Disease Control and Prevention (CDC): you still need to keep a social distance. That means you should still stay 6 feet away from people, even in a swimming pool. Many large aquatic centers around the country have decided not to reopen for the summer season. The Florence Family Aquatic Center in Kentucky posted a message on their website, letting everyone know they will not be opening this summer.The national chain Great Wolf Lodge has closures stated on its website through June, and some locations will he closed for even longer.The CDC's 620

来源：资阳报