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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

广州:全力推动大湾区建设不断取得新成效

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 美《财富》杂志发布2014年度顶级家居十大品牌 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

总的来说,在选择就读EMBA的原因中,创业排在最末(10分中得5.5分)。学员的主要动机是学习管理(9.1分)、拓宽人脉(8.3分)及增加收入(8.1分)。
乌拉圭之所以取得成功,不仅仅是因为它对足球的激情,还因为其早期文化的包容性。在1950年世界杯上,当时其邻国巴西仍然对黑人球员心存怀疑,乌拉圭队却以拥有一位黑人队长、杰出的巴雷拉而感到自豪。此外,乌拉圭在世界杯成型期的胜利造就了延续至今的血统,它的很多球员如今都在海外的一些世界豪门俱乐部踢球,如利物浦的苏亚雷斯和巴黎圣日耳曼的卡瓦尼。

今年选秀中还有很多选秀权交换的情况,有湖人给费城的前三保护的选秀权,有孟菲斯给丹佛的前五保护的选秀权,还有那个无耻的萨克拉门托给芝加哥的前十保护的选秀权(然而费城球队会控局的,他们的前总经理山姆-辛基会来复仇的)。

The theory that exercise boosts your intelligence might have some basis in fact according to a study conducted at Georgia Tech. Even if you don't like lifting weights, and the inside of a gym makes you want to run for the nearest doughnut shop, it might take just 20 minutes to enhance your memory, according to the 2014 study. Researchers asked participants to work out for 20 minutes in an intense manner and found that just 20 minutes of activity could help improve "episodic memory" by as much as 10% in young adults.
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脸型。不要吃!要瘦!瘦出能切开黄油的颧骨。
注册人数:424人
● “奥巴马总统证实,如果特朗普当选他将拒绝离开白宫”
“I am proud of my position as a boss, as a person that runs my own company,” Perry told FORBES for our Celebrity 100 cover story this past summer. “I’m an entrepreneur. … I don’t want to shy away from it. I actually want to kind of grab it by its b---s.”
李说,记者职业排名靠后已经有一段时间了(去年在200个职业中排名第196位)。他说,这次被挤到最后一位很可能是因为有些情况更糟了,如职业前景变差、平均薪资继续下滑、工作时间持续增加等,而且这些因素也让记者的压力更大。
6. Photojournalist

"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

intended
adj. 粗糙的,粗略的,粗暴的,艰难的,讨厌的,不适的

'One of the challenges of writing the book was that attitude that a heterosexual man can change a woman's life and make her go weak at the knees.
The enterprise storage company boosts company morale by hosting a mid-summer "Dog Day". Employees bring their pets to work and enjoy a vendor fair (local groomers, store owners, and trainers are often present), as well as a doggie talent show. A raffle runs the week leading up to the event, and all proceeds are donated to a local animal charity.
adj. 肌肉的,肌肉发达的
当时,身为首席执行官的库克也承受着压力,因为苹果除了从iPhone攫取利润之外,缺乏清晰的产品开发方向。维权投资者嗅到了血腥,开始围攻这家公司,打头的是大卫?艾因霍恩(David Einhorn),接着是卡尔?伊坎(Carl Icahn),他们游说改变苹果的经营和财务管理方式。伊坎施压要求苹果筹集巨额债务,向股东返还1500亿美元,并敦促苹果发布包括电视机在内的更多产品。

排名:第四
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节目24 土耳其风情舞蹈《火》,土耳其火舞舞蹈团
昨日,中国四大国有银行中的两家——中国工商银行(ICBC)和中国银行(BoC)——均报告称,2015年全年净利润增长低于2%。
总体来看,36%的人相信末日论,而63%的人相信是气候变化的结果。

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

But the impact of corporate stinginess can go beyond simply ruining employees’ lunar new year holiday, possibly coming back to bite employers: 39 per cent of respondents said they would look for work elsewhere if their year-end bonus was not up to snuff, an increase of 2.3 percentage points from 2015.
2014年、2015年的研发经费增速分别为9.9%和8.9%。研发经费在去年国内生产总值(GDP)中的占比为2.11%,比上年提高0.05个百分点。

CDC

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5. How to play poker

源于:qualify(v 使具有资格;限制)
自1983年以来,每年的央视春晚就成为了中国人民春节必不可少的重要组成部分,也难怪主办方的每个举动都能成为关注的焦点。
史蒂夫?乔布斯(Steve Jobs)去世后的三年中,维权投资者对苹果发起了攻击,一些人对没有乔布斯的苹果是否还能成功也失去了信心,但现年54岁的库克一直沉着应对。今年,他走出了前任的影子,以自己的一套价值观和议程给苹果公司打上了印记:他引进了新鲜人才,改变了苹果管理巨额现金的方式,扩大了苹果与外部的合作,更加关注社会问题。
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。

报告发现,三线城市是最适合居住的地方。
Local educational authorities have since revoked Zhengzhou Boqiang New Idea Life Training School's license and launched an investigation into its record. Hauntingly, the school's website remains online, replete with photos of students in camouflage uniforms performing drills and attending what the site labels "wonderful lectures."
Halloween is just a few days away. Which means, if you haven’t gotten your costume or decorations sorted out yet, you might want to start doing that pretty soon.
sen年老+ior表形容词,“较…的”→年长的

美国品牌如Chipotle、德克萨斯仪器公司和通用动力第一次出现在了该榜单上。
5. The 2012 Ig Nobel Chemistry Prize
我经常心情不好
Tsinghua University and Peking University are ranked in 14th and 17th place respectively -- the same positions they held in last year's rankings.
Song “Friends Forever” (Yang Kun and Zhang Liangying)

“I think the best way to engage young people in the process is to win,” he says.
律师本质上是谨慎的,但他们中的大多数人已经认识到,技术是处理他们需要梳理的大量信息的关键。没有技术,披露和合规等一些需要处理很多文件的工作几乎不可能完成。
It was also the "most liked" tweet of the year, with 4.59 million likes.
Next year will be the 60th anniversary of the beloved talking bear. And to mark the occasion, Paul King, who directed 2014’s critical and commercial smash, simply titled Paddington, is back for this sequel. In a time where even children’s entertainments are suffused with darkness and violence, this quiet celebration of the everyday English is needed more than ever. The plot of this film? Well, not much really: following the events of the last film, Paddington is quite comfortably installed with the Brown family of Windsor Gardens. He wants to buy a pop-up book for his aunt from a local bookseller, but finding himself a few quid short he puts on his wellies and duffel coat and finds employment in various odd jobs – only to have the book stolen from the shop! A (not so serious) mystery begins. Expect many more jokes about Paddington’s love of marmalade. Released in the UK November 10, November 23 in Germany and November 30 in Cambodia and Malaysia. (Credit: StudioCanal)
在不久的将来,罗根(休?杰克曼饰)已迈入暮年。他在墨西哥边境附近的一个藏身所里照顾着重病的X教授(帕特里克?斯图尔特饰)。他计划隐世度日,但他遇见了一个非常像他的年轻变异人劳拉(达芙妮?基恩饰)后,这个计划搁置了。罗根必须保护这个女孩,与要捕杀她的黑暗势力斗争。

Tsinghua University and Peking University are ranked in 14th and 17th place respectively -- the same positions they held in last year's rankings.
不过,我不在叹息之列。
推出迷你iPhone后,加上中国今年或明年颁发LTE执照,就能最终说服拥有7亿用户的中国移动(China Mobile)和苹果签约。
“As we work to keep and attract more young professionals and job creators, we appreciate every young person who is engaged and invested in our state.”

The Chinese mainland had a population of 1.37 billion, an increase of 33.77 million people over the census taken in 2010, meaning the annual growth rate was 0.5 percent.
vt. 包含,容纳,克制,抑制
当发生问题时,库克会迅速而无情地采取行动。2012年底,苹果过早推出了有缺陷的苹果地图(Apple Maps)应用之后,库克解雇了乔布斯的亲密盟友、领导开发iOS的斯科特?福斯托(Scott Forstall),以及前Dixons首席执行官、掌管苹果零售部门不到一年的约翰?布劳伊特(John Browett)。此举传递出一条信息:库克不会容忍业绩不佳或内部政治。
Mavericks owner Mark Cuban has made riskier bets than this, though, and he didn't part with much of consequence (Justin Anderson and a fake first-round pick) for a shot at working Noel into a lob-finishing/rim-protecting life as the next Tyson Chandler.
Taobao, subsidiary of Alibaba, came in second place, with a brand value of $42.9 billion, overtaking China Mobile, Baidu and ICBC.
中国正在清除自由市场上的障碍,促进国际参与,并增强了对发展中城市基础建设,改善社会条件并壮大中产阶层,展现信心和国力。基于此,我们认为中国作为世界第二大经济体在2014年之后还会继续高速发展

由于新出口订单增幅与上月基本持平,新订单总量增长趋缓。但就业流失加速,投入品价格增幅收窄,企业对客户收取的价格略有回升。
"Migration should be an option, a choice. But for 200 million people, it's a necessity," he told the Thomson Reuters Foundation in a phone interview.
单词pressure 联想记忆:

谁会与一位王室成员击掌呢?尽管他年龄不大。
该世界大学学术排名主要考核六个客观指标,包括校友和员工赢得诺贝尔奖的数量和奖牌、高度援引研究人员的数量、发表在《自然》和《科学》期刊上的文章数量、科学引文索引收录的文章数量以及师均学术表现。
深入推进“互联网+”行动和国家大数据战略;
Stand: Wal-Mart U.S. President and CEO Bill Simon pledged to hire veterans
第三步 练习古怪表情