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The Logic Behind A 14-Day Quarantine After Travel Or COVID-19 Exposure : Shots - Health News What's behind the "14 days of self-quarantine" guidance after exposure to someone with COVID-19 or after travel from a place with a high number of cases? Think of yourself as a potential incubator.
NPR logo The Science Behind A 14-Day Quarantine After Possible COVID-19 Exposure

The Science Behind A 14-Day Quarantine After Possible COVID-19 Exposure

A sign on the M8 motorway last week in Glasgow, Scotland. Jeff J. Mitchell/Getty Images hide caption

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Jeff J. Mitchell/Getty Images

智能涂料市场2020年将达58亿美元

Jeff J. Mitchell/Getty Images

To stop the spread of the coronavirus, health officials have a favorite refrain: After being in a city or region where there have been a lot of COVID-19 cases, spend 14 days in quarantine even if you feel perfectly fine — don't leave your house. Coming from New York? 14-day quarantine. Arriving in Hawaii? 14-day quarantine. Been in Italy or China or Iran recently? 14-day quarantine.

"That's a long-standing public health practice, and it's called 'traveler's quarantine,' " explains Lindsay Wiley, a professor at American University's Washington College of Law. "Fourteen days is not a made-up number here — it's based on what we know so far about COVID-19, and it's possible that over time we'll see that number change as we learn more [about the virus]."

The 14-day rule is widespread because public health agencies around the world work together on these guidelines. In the U.S., the 新房无优惠中介代销却可打9折?原来都是套路 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

9.Be Honest
vt. 作 ... 姿

For: A huge box office hit that could benefit from a slowly-changing Oscar voting demographic.

价格:197.5万元(约合人民币1264万元)
Goldie Blox是一家玩具公司,使命是重新定义玩具商店中的“粉红走道”。在科学、技术、工程和数学(STEM)教育和职业领域,男性数量要大大多于女性,大部分女孩往往在八岁前就对这些领域失去了兴趣。Goldie Blox所设计的玩具则通过吸引女孩发展强大的口头及故事讲述能力的方式——同时仍提供机会来发展日后可转化成对工程学兴趣的技能——来鼓励和启发未来的工程师们。说到机会,一家玩具初创企业如何能在和一开始就统治着玩具行业的大公司的抗衡中脱颖而出呢?Goldie Blox走出了明智的一步:最近,该公司发布了一段视频,采用了Beastie Boys的歌曲《女孩们》(Girls)做背景音乐,该视频得到了病毒式传播。尽管这段视频最终被撤下,但Goldie Blox在提高公众对让更多女性和女孩对STEM产生兴趣——以及对Goldie Blox玩具——的认知上,做了一份相当不错的工作。
有一颗大小与地球相近的行星围绕着距离太阳最近的恒星——半人马座比邻星运转。这颗行星的“一年”仅有11天。但因为比邻星是一颗红矮星,它比太阳暗100倍左右,因此行星位于宜居区。另一则热门消息称,40光年外的一颗相似恒星的宜居区可能存在三颗行星。
East New York in Brooklyn will be the test case when the Department of City Planning presents initial recommendations early next year. After that, the rezoning process could begin for the neighborhood, among the city’s poorest. A proposal for west Flushing in Queens is next.
It was the season of Light, it was the season of Darkness…
7.Make Practice Tests
蓝天在未来不会也不应该成为奢侈品。
On the a monthly basis prices fell by an average 0.5 per cent.

"The incubation period varies from virus to virus and sometimes from host to host," says Rachel Graham, a virologist at the University of North Carolina's Gillings School of Global Public Health.

For the virus that causes COVID-19 — its official name is SARS-CoV-2 — researchers have found that the typical incubation period is about five days. About 97% of the people who get infected and develop symptoms will do so within 11 to 12 days, and about 99% will within 14 days.

Canadian border agents are handing people entering Canada a sheet from the Public Health Agency of Canada that instructs them to self-quarantine for 14 days and monitor themselves for any symptoms that might signal COVID-19. Selena Simmons-Duffin/NPR hide caption

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Selena Simmons-Duffin/NPR

Why the difference? It wasn’t because of a difference in the available information. As Koudijs and Voth point out, everybody in Dutch financial circles knew and understood the magnitude of what had happened. Nor was it because the Seppenwolde lenders had to rebuild their own finances. Within weeks of the default, the lenders knew they hadn’t lost any money.
Zhu Xueqin, an NPC deputy and migrant worker from Shanghai.

So here are the main items to take into consideration if you’re trying to develop a business platform. These elements constitute will support a smart strategy for any new enterprise:
我们要求FlightAware对航班抵达延误情况进行统计,而不是航班出发延误情况,因为有时候,航空公司可以让飞机在空中飞行期间追回地面上失去的时间。
Influenced by the current economic situation, and resource relocation in China's financial market, the banking industry is away from the high-speed growth period, the expert added.
n. 妥协,折衷,折衷案

Dua Lipa, 'Dua Lipa'
Treasury Secretary Jacob Lew announced the plans for the new redesign Wednesday. Lew said the Treasury Department will launch a social media campaign dubbed "The New 10" to solicit ideas on whose portrait should be chosen for the new bill, along with a series of public meetings. He will reveal his decision sometime this year.
Henda Ayari
9. Add Personality
如果美国汽车行业杂志《沃兹汽车》(Wardsauto)的专家最新编撰的最佳引擎榜单可作为一种指示,那么在当代轿车、卡车和跨界车的引擎盖下面正发生一场静悄悄的革命。涡轮增压、机械增压和柴油引擎——甚至还有一款电动发电机——主导了第20届年度十大最佳汽车引擎奖;根据《沃兹汽车》,这些奖项“表彰了杰出的动力系统成就、世界级技术以及那些帮助推动汽车销售的稀有发动机或者电力推进系统。”

An illustration created at the U.S. Centers for Disease Control and Prevention conveys a likeness of the coronavirus that's behind the current pandemic. CDC hide caption

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CDC

A型与B型人格理论指出,A型人格的人外向、野心勃勃、严谨、地位意识强、敏感、不耐烦、焦虑、积极主动和注重时间管理。
Bored with your day-to-day life? It’s time to go on an adventure and refresh yourself! The Antarctic is undoubtedly a good choice. Watching native penguins playing and seeing millions of seabirds flying across the sky is much more exciting than watching TV documentaries. Imagine how cool and fascinating it is to be in a world of majestic icebergs and unexplored mountain ranges. But remember, it’s a polar region, so prepare well before you set off. Insulated boots, warm coats, gloves, wool socks and hats are a must.

CDC

看起来,数据造假会在官方层面得到宽容。公布真实数据会把你送上法院的被告席。如果还有更多这类情况发生,公众不再信任官方统计数据将是正确的。
民调显示,荷兰选举将是一场胶着战。吕特所属的中右翼自由民主人民党在大多数民调中位居榜首,但仅领先自由党3个百分点。大多数民调显示很大一部分选民仍未做出决定。

Maddie has now appeared in three of Sia's videos - Chandelier, Elastic Heart and Big Girls Cry.
(可可英语版权所有,未经允许请勿转载)
STEP 4: REMIND EVERYONE about what an "idiot" or "moron" they are
The runner-up was Lucy Kay, with Bars and Melody in third place.

答:其实我并不怎么关心作品火不火的,就是专注于自己的作品而已。每次我关注的就是要怎样用最好地推进剧情而已。我关注的是行为和故事,不是受欢迎程度。
这位当选总统承诺废除贸易协议:如果这些贸易协议被修订,可能会对美国大宗商品的进口和出口造成广泛影响。
朱克斯提醒,我们目前正处于第四次超级大泡沫之中,它是美联储在保守经济学兴起以来的30年时间里吹起来的。他将这个泡沫称为“暂时没有名字的泡沫”(Bubble With No Name Yet)。好,大家来给这个新泡沫命名吧。但不管你叫它什么,都要快点起名,因为它马上就要爆了,就像过去30年相继破灭的亚洲泡沫、互联网泡沫和信贷泡沫一样。
他说:“黄金披萨奢华至极。如果你想享受一顿奢侈大餐,那么这份披萨就是为你准备的。”

课程安排:每隔一个周末在芝加哥上课,共计大约18门课程,包括4门选修课。学员在芝加哥住校学习3周,在香港和伦敦分别学习1周。
8. Am I playing too hard? A lack of motivation to accomplish certain things can throw you off balance or make you feel stressed out and pressured later on. Taking breaks is very necessary, but if you take so many breaks that your productivity level drops, or you get into the habit of procrastinating too much, it might be time to balance out your schedule so that you will get a generous amount of things done and still have time for breaks and leisure.
威廉姆斯指出,来自巴西、越南、台湾和智利的11月初数据表明,出口形势自10月以来持续改善。
de去掉,but。去掉but?导演Z(平静):你可以上台了。女演员F:but我还没准备好呢?Z(有点儿烦):哪那么多事儿呀,快点儿!F:but我这可是第一次!Z(强忍):谁没有第一次呀,快!F:but…,Z(已经怒了):哪XX那么多but呀,全都给我de掉,再不上去我就X人了!!!
Many years before Bryan played "Walter White" on Breaking Bad, he and his brother worked in a restaurant in Florida. The head chef was a very mean man. In a 2011 podcast for Marc Maron, Cranston described him saying "No matter how nice you may have been to him, he hated you." Not surprisingly, all the wait staff routinely discussed how they wanted to kill him. Cranston says it was "all they talked about!"

斯蒂芬?韦格斯蒂尔(Stefan Wagstyl)柏林补充报道
Create a mood board for inspiration, including quotes and pictures that will invigorate your creative juices. You might even want to change it up once and a while if you have a major project due or need fresh ideas. Art or wall décor can also add a creative touch to your workspace. We recommend the 3 in 1 Board, $19.95, at CB2.com (pictured above).
2021届哈佛待入学新生的脸书官方主页提醒学生,“如果新生在诚信、成熟度或道德品质方面存在问题,那么校方保留针对恶劣情况取消学生入学资格的权利。
8.Prosthetic Hands That Sense Touch
今年2月的时候,玛蒂与希雅和克里斯汀?韦格(Kristen Wiig)一起担任2015格莱美音乐颁奖典礼(Grammy Awards)的表演嘉宾。当时金?卡戴珊(Kim Kardashian)和坎耶?韦斯特(Kanye West)坐在前排观看了这个表演。

Though bionic legs are of course a huge boon to amputees, they lack actual nerve connections with the body. As a result, walking on them is cumbersome and tiring. But last year, Seattle resident Zac Vawter was outfitted with the world's first thought-controlled leg, a bionic limb that takes signals directly from his mind.
China will remain an important engine for world growth amid sluggish global economic recovery.
“这是我们租户运动生死攸关的时刻,”大都会住宅委员会(Metropolitan Council on Housing)的项目总监伊拉娜·迈尔(Ilana Maier)说,“如果我们现在不能大举强化规定,那么这些政策在十年内都发挥不了作用。”
个人电脑使用周期延长,再加上智能手机和平板电脑带来的竞争,大大抑制消了消费者对PC的需求。据IDC数据显示,全球各地区的电脑出货量均连续5个季度出现下滑。

以美元计,上个月进口下跌了18.8%,跌至1141.9亿美元,跌幅超过了去年12月的7.6%,也超过了下跌3.6%的预期。
‘Hackers are using common terms from pop culture and sports to break into accounts online because they know many people are using those easy-to-remember words.’
The upshot: The world's largest economy can still function as an oasis in a desert despite the claims of doomsayers that those days are over.
Zheng Gang, a member of the CPPCC National Committee and deputy mayor of Danzhou city, Hainan province.
Economic forecasters are counting on 2014 to be a breakout year. But whether the economy finally moves past its sluggish growth will rest on several forces playing out differently than they have since the recovery began. Some of the key questions:
An escalating war on drugs in the Philippines has led to almost 1,800 deaths under new president Rodrigo Duterte, the country’s police chief has said.

经对比,科学家们发现,快跑之后心率变化和整体的跑步速度对记忆结果没有影响,但是穿不穿鞋却有影响。具体地说,脱下鞋慢跑16分钟就能够让“流水记忆”能力提高16%。这一研究结果后被发表在了《知觉与运动技能》一书上。科学家们推断 ,可能是因为不穿鞋跑步的时候,人们需要时刻担心石头或者其他障碍物,这个过程对记忆能力的提高产生了正面的影响。如果你是一个冒险主义者,也许在下次考试或者需要记忆什么重要事项之前可以试着在小区光着脚慢跑试试。
“学会让经济指标和人民主观的幸福感同步发展是很重要的,因为我们应该不仅仅是追求更强的经济能力,而应追求提高各个领域生活质量。”报告总结道。
Against: It might be that bit too far from the mainstream to make a huge awards impact.

Another slowdown in food prices pulled Chinese inflation lower in October, according to the National Bureau of Statistics.
A network of walking and biking trails leads to other lakeside neighborhoods and to downtown, which is about 15 minutes by bicycle and 10 by car. The Walker Art Center and other museums are nearby. Hockey and skating are popular on the lakes in winter; canoeing, swimming and fishing in the summer.
Pete Rossi can count on one hand the number of weeks out of the year that he works more than 50 hours. But the rest of the year, his job as an actuary with the Department of Defense, provides a good living with a minimum of stress.
卡梅隆·安东尼
How do you feel about workingwith Ei Aoki again in Aldnoah?