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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

净水设备线上销售呈井喷式增长 市场接受度变高

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 解码中央经济工作会议公报:从“三去一降一补”到“三大攻坚战” the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

There will no longer be any legal obstacle to the implementation of a universal two-child policy, if the draft amendment to the family planning law is approved by the top legislature by Sunday.
Soon after the conclusion of the 2016 national post-graduate entrance examination on Sunday, the Ministry of Education was informed of suspected leaks of exam questions.

For the students interested in comparing school options around the world, US News released the fourth edition of its annual Best Global Universities rankings.

Data from the Ministry of Industry and Information Technology showed the production of new-energy vehicles last month surged by 144 percent year-on-year to 16,100 units, and the output of fully electric passenger vehicles tripled from the same period last year, reaching 7,952 units in January. Official data showed that 97 percent of new-energy vehicles produced in January would be eligible for favorable taxation policies.
当你和他/她打电话打到很晚,他/她挂了电话,你仍然想念他/她,即使电话只挂了2分钟
韩美林在他的社交媒体上表示,他只设计了吉祥物的水墨画原始版本,对3D版并不知情。某网友对此回应了这位德高望重的艺术家:“我们当然相信这只丑猴和韩大师无关。”
36岁的阿德里亚娜·利马排在第四位,其收入为1050万美元,初为人母的罗西·亨廷顿-怀特利(950万美元)与25岁的卡莉·克劳斯(900万美元)分别位列榜单的第六位和第七位。
中美两国人民都是伟大的人民,我们有智慧来管控分歧,我们有需要也有条件来扩大共同利益。
这篇文章指出,食用有益于心脏的食物是防止痴呆、保护记忆力的关键。一些心脏病的并发症和阿尔茨海默症以及痴呆症的并发症十分相似,因此研究阿尔茨海默症和痴呆症的教授们认为,有益于心脏的食物大概也有益于大脑和记忆。水果、蔬菜、全麦面包、豆子、坚果和橄榄油都有对心脏有益。如果这10个方法你不能都采用的话,一个健康的饮食至少能让你不要丢失记性。
Making the cut for the first time, Gigi, 22, and Bella Hadid, 21, are ranked at number five and number nine respectively, with the former making $9.5 million and the younger sibling taking in $6 million.
New York's inactivity begs two questions. Does Jackson have the energy needed to undo the damage he's created during his tenure?

"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

妮诗原来就读于奥顿肖杨树街小学,现在就读于威辛顿女子学校,今年九月会进入奥尔特林厄姆女子语法学校。她与父母尼朗加和施若咪一起生活, 2001年,一家三口从斯里兰卡搬到了曼彻斯特。44岁的父亲尼朗加称赞妮诗在杨树街小学的启蒙老师们功不可没。他说:“我们很早就知道她有天赋,她很小就开始阅读和写字,而且非常擅长数学计算。我们让她做一些有挑战又有趣味的事。作为父母,你不想让孩子的天赋荒废掉,但是在他们的童年时期又需要平衡。她只是一个普通的10岁小孩,真的就像任何其他的10岁小孩。她喜欢阅读、骑车、散步,我们都为她感到骄傲。”
The survey discusses projections for going forward: "The cost of living is always changing and there are already indications of further changes that are set to take place during the coming year."

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。
办事处副局长卢华东说:“自治区已投资40亿元人民币(约合6亿美元),用于推动贫困地区特色的产业,去年重新安置了77000名贫困人口。”
在《渴望生活》这张专辑的第一首歌《爱》中,拉娜·德雷唱着“过去的一切造就了今天的你,但未来由你决定”。
《佛罗里达乐园》

31岁的C罗的足球圈中的死敌、今年一月击败其荣膺世界足球先生的里奥·梅西在2015-2016年度收入5600万英镑,位居第二。
It organized two large-scale inspections last year, involving more than 5,300 batches of imported consumer goods, such as air purifiers, car brake blocks, household electrical appliances and clothes, with more than 1,500 found to be substandard, Han said.
Even though we are apart, you are in my heart this season.千山万水,隔不断我在佳节对你的思念。
TextPride changed its name to Swyft Media and launched a platform that pushes emojis and stickers from new brands into messaging apps. Brands pay for the privilege, as they would with a regular ad campaign.
Maryam Sharif

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

At Japan Expo, we are very honored to interview Gen Urobuchi and also begraced with the presence of Nitro+ president Takaki Kosaka.Let's begin.Translated by Emmanuel Bochew.
*喜剧类最佳客串男演员:彼得?斯科拉里(Peter Scolari),《都市女孩》(Girls)

CDC

Landing a superstar like Cousins for pennies on the dollar won't singlehandedly help the Pelicans carve out a larger slice of the sports landscape in New Orleans, but it's an excellent first step.
The expansion would be considered impressive in most markets, but it represents an ongoing slowdown for China, the world's second-largest film territory and a continual source of growth for Hollywood for the better part of a decade.

自2017年初,金价上涨了15%,交易价为每盎司1334.78美元。
根据1894家上市公司公布的2016年财务年报的数据显示,金融和地产业的高管薪酬最高。
The contiguous United States set a temperature record in 2012, a year of scorching heat waves and drought. But, mostly because of the unusual chill in the East, 2014 was only the 34th warmest year on record for the lower 48 states.
201103/129769.shtmlEveryone tells a white lie on occasion, it’s just a question of why. Some white lies save relationships, some ease a hectic situation, and others buy us time. We all do it, so there is no reason to deny it. As long as we aren’t hurting others or breaking the law, these innocent lies can make life more pleasant. Most of these white lies only stretch aninterpretation of what the truth actually is anyways. Here’s a list of the 10most common white lies and why we tell them.

他说,杂志和作者在这起最近发生的丑闻中都有不可推卸的责任,声明中还说,《肿瘤生物学》在2015年就已经因同行评议过程存在类似问题而撤销一些论文。
安联:小奥运会
The workers, who were part of a crew building a football stadium, were taken in the mainly Shi'ite Habibiya district in northeastern Baghdad.
借助于Artnet等公布拍卖结果的数据库,如今购买艺术品的富豪非常清楚要想在早期绘画大师的作品上获利非常困难。

公司:技术服务公司Binary Group
“他还是抽雪茄的,他抽很多、很多雪茄。”
11月份以美元计算的中国出口和进口额都增加了,此前它们经历了两个月的收缩,而且这一增长是在上月美国总统选举后美元升值背景下实现的。
9. 设身处地也能提高记忆力
时间:2010-05-31 编辑:francie

上周四公布的一项数据显示,两所中国顶尖大学跻身今年《泰晤士报高等教育专刊世界大学声誉排行榜》的前20名。
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500个品牌来自28个不同国家,其中近半(227个)来自美国。
“Brands that are known for going it alone are partnering with unexpected allies,” Gilbert says. “If you dig into Apple’s investment, the special projects team reads like a who’s who list of some of the best talent in the world coming from every sector imaginable.”
卡恩在宣布收购交易的博客文章中表示,尽管移动设备在改变我们的日常生活,但“大多数文章和网页的格式是为PC端设计,适合用鼠标点击浏览。在手机或平板电脑上浏览它们可能构成重大难题——读者希望更方便地找到对自己重要的内容。”

墓地主人的身份依然是个迷。这座墓地曾经被盗过,而且墓地中没有任何的文字记录来表明这些死者的名字以及他们的职位。
中国人民大学近日发布的我国大学生创业报告显示,学生学位与其创业意愿成反比。
The U.S. is set to add nearly 3 million jobs in 2014 — the biggest increase since 1999. The burst in job creation, expected to continue in 2015, is sure to fuel consumer spending. So, too, will a plunge in gasoline prices that's given households extra cash to spare on other goods and services. See: Americans saved $14 billion as gasoline prices declined in 2014.
在这两个新指标方面,英国商学院的表现都优于法国商学院。在职业发展方面表现最好的英国商学院——华威商学院(Warwick Business School)在这一指标的总体排名中位居第二,高于法国在这方面表现最好的巴黎高等商学院(HEC Paris) 30个名次。在毕业后首份工作薪资与当下薪资比较方面,英国商学院校友的薪资增幅更大,为62%,法国商学院校友的薪资增幅为45%。然而,英国商学院校友的平均薪资仍低于与法国商学院校友,分别为5.5万美元和6.4万美元。

扎克伯格还协助成立了一个名为FWD.us的游说团体,旨在推动美国的移民和教育改革。
Leadership
但崩盘还是来了。经济下滑,衰退持续了30个月,华尔街把我们的退休金拿去亏了超过八万亿美元。从2000年网络股崩盘到2010年的灾难,在21世纪的头10年里,华尔街经通胀因素调整后的绩效为负。今天华尔街的回报率也只是刚刚战胜通货膨胀。难怪投资者觉得被华尔街的赌场骗了。
注册人数:503人
人力资源和社会保障部的一位官员称:“根据往年的经验,在报名窗口快关闭时,报名人数会剧增,尤其是在最后三天。”
A fascinating study from researchers at the University of North Florida reveals that running barefoot may actually improve your memory more than running with shoes. While most memory studies seem to take place in a laboratory or room where everyone sits at a table, this experiment definitely introduced an interesting idea to the search for a better memory. The experiment focused on something called "working memory," which is the human ability to process information and recall details throughout life. The scientists published the results of their study in "Perceptual and Motor Skills," and found that running barefoot resulted in a not-insignificant memory boost when compared with memory performance after running with shoes. The researchers found that tossing your shoes off and running for about 16 minutes at a comfortable pace could result in a 16% improvement in working memory performance.

是的,州市层级的退休金妨碍了复苏。公司养老金也是一个大问题,它加剧了美国的贫富分化:药品公司麦克森(McKesson)的CEO才当14年的老大,但退休时将有1.59亿美元的退休金,而美国一般打工族的收入已经30年止步不前。
我们只把精力在应该关注的地方
第一步 拥有傲娇的造型

To Craig Bennett, Abigail Baird, Michael Miller, and George Wolford for demonstrating that brain researchers, using a combination of complicated equipment and simple statistics, can find meaningful brain activity anywhere, even in a dead fish.
以下是专家提供的,明年的生存和发展建议:
Others will look for ways to use tech to help people spend less time online. Tristan Harris, a former Google employee, is building a following for his Time Well Spent movement, tackling what it describes as the “digital attention crisis” by encouraging designers to understand the subtle psychological forces they control. Tim Kendall, formerly of Pinterest and Facebook, is reported by Recode to have plans for a start-up focused on fighting device addictions.
Vawter climbed 103 floors of a Chicago skyscraper on his bionic leg, but its designers are still working on improving it. To optimize it for everyday use, they have to make it even thinner and lighter. Its successor (the iLeg Air?) may meet the Army's stated goal for a bionic leg—10,000 steps without recharging.
除了这一综合排行榜,《美国新闻与世界报道》还提供了地区、国家、特定专业大学排行榜,方便大家进行更为细致的搜索。