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佛山照明:揭秘2017年LED照明市场走势

Editorials

Covid-19: breaking the chain of household transmission

BMJ 2020; 370 doi: 北京去年底常住人口2151.6万 增量增速持续下降 (Published 14 August 2020) Cite this as: BMJ 2020;370:m3181

Read our latest coverage of the coronavirus outbreak

  1. Shamil Haroon, clinical lecturer in primary care1,
  2. Joht Singh Chandan, academic clinical fellow in public health12,
  3. John Middleton, president3,
  4. Kar Keung Cheng, professor of public health and primary care1
  1. 1Institute of Applied Health Research, University of Birmingham, Birmingham, UK
  2. 2Warwick Medical School, University of Warwick, Coventry, UK
  3. 3Association of Schools of Public Health in the European Region (ASPHER)
  1. Correspondence to: S Haroon s.haroon{at}bham.ac.uk

LED照明巨头“智能照明”理念与实践对比 谁最“拼”?

The UK is one of the countries most severely affected by covid-19. Recent outbreaks in English towns such as Oldham, probably involving transmission within large multigenerational households, show the importance of getting the right public health measures in place now to prevent more widespread surges in infections.1

Current test and trace policies have mainly focused on preventing spread in care homes, hospitals, and in the community.2 However, contact within households is thought to be responsible for roughly 70% of SARS-CoV-2 transmission when widespread community control measures are in place.3 In Wuhan, the reproduction number (R) dropped from 3.54 to 1.18 after lockdown and cordon sanitaire. But the epidemic was only brought under complete control when Fangcang (field) hospitals were introduced to isolate cases outside the home, with R dropping to 0.51 after two weeks.4

Current UK guidance advises household contacts to isolate within the same home as the index case for 14 days.5 They make up the majority of contacts for infected individuals and are likely to remain exposed to the infected household member during this period of isolation.6 Despite guidance advising household members to socially distance, contacts are likely to interact repeatedly—during mealtimes, for example—and to share facilities such as bathrooms.

We know that transmission is more likely to occur indoors than outdoors.7 The cumulative risk to household contacts from an infected person is likely to be substantial during peak viral shedding. In one study in New York State, 38% of household contacts tested positive for SARS-Cov-2, and similar secondary infection rates have been reported in China.89 Transmission may be even higher among household contacts of essential workers, who are at greater risk of being infected than the general population.10

Household members who are older, have underlying medical conditions, or share a bed or vehicle with the index case are the most susceptible.91112 Children seem to be at lower risk of being infected.13 However, their stool samples and nasopharyngeal swabs can remain positive for SARS-CoV-2 for more than two weeks after symptom resolution,14 although their role in transmission remains to be established.

Governments should consider new public health measures to prevent household transmission as we prepare for a potential second wave. Household quarantine is likely to remain an important pandemic control measure, and government support for people quarantined at home is conspicuously absent in the UK: this position has been challenged by independent experts.15

Effective isolation

Effective isolation of index cases from household members could reduce secondary infections.12 Wearing masks within quarantined households may help, particularly if used by the index case as soon as infection is suspected.16 The World Health Organization recommends that infected people and unavoidable close contacts, particularly those in vulnerable groups, should wear medical masks, but Public Health England does not currently recommend this. Other measures that should be considered (and evaluated) include clear advice on enhanced personal hygiene; cleaning and disinfecting shared toilets and other common spaces, door handles, and touch points; and staggering mealtimes.

People who are unable to self-isolate safely at home could be accommodated in special isolation facilities such as hotels and hostels, an approach adopted by some other countries, including Italy, Finland, and Lithuania.17 In China, field hospitals were created to manage and strictly isolate patients with mild-to-moderate covid-19.18 Nightingale hospitals in the UK could be similarly repurposed to support isolation of infected people with mild-to-moderate disease. As medical and nursing care needs are mostly modest, the cost would be relatively low. However, such a system depends on access to rapid testing for anyone with symptoms or possible exposure so that infection can be confirmed and isolation started before transmission occurs. It would also require public trust that isolation in these facilities would be voluntary, safe, and supportive.

Miranda Lambert “Bathroom Sink” (RCA Nashville)
Overall, 36 percent point to end times and 63 percent to climate change.
The average pay for executives in educational companies was the lowest, just over 2.8 million yuan and about one tenth that of their counterparts in the financial sector.
不要马上接受一个工作录用。你需要好好考虑一下。你要是一签文件了,就没有商量的余地了。
工业生产者出厂价格指数(PPI)通常被认为是中期通胀的代表,该指数仍留在负值区间,但下降速度有所放慢。
先锋(Vanguard)的亚洲投资组合审查主管Yan Pu怀疑,亚洲的产品结构可能阻碍了ETF的发展。例如,亚洲ETF公司提供大量的股票ETF产品,但很少有固定收益产品。她指出,在美国,固定收益ETF增长迅速。
单词slouch 联想记忆:

10. Neuroscientists have discovered a whole new role for the brain's cerebellum. It's long been assumed that the cerebellum functions largely outside the realm of conscious awareness, coordinating basic physical activities like standing and breathing, but it could actually play a key role in shaping human behaviour.
Susan Chan, head of iShares Asia-Pacific at BlackRock, says ETFs are more popular among institutional investors in the region.
The consequences are more parochial than those of Chinese data distortion. British law requires the ONS to produce the RPI and, given that it refuses to improve the measure, its fiddling affects hundreds of billions of pounds of contracts which continue to be linked to the RPI.
Brian Kendrella, president of New York-based Stack's Bowers Galleries, says the auction drew half a dozen bidders from six countries. The winning bidder Thursday was an individual collector from Asia who asked to remain anonymous.
Still relevant

Footnotes

  • 专家避谣:大理石无辐射 将全面进入家装市场
  • How the longer maternity leave policy is implemented is up to local governments to decide. Specific and legally-binding measures should be worked out at the national level to ensure the policy is carried out and properly enforced to ensure that women are not discriminated against by employers obsessed with minimizing their labor costs.

It was billed as the year in which female film-makers and women's issues would be in the spotlight. The festival opened with a film by a female director for the first time in 28 years, Isabella Rossellini chaired the Un Certain Regard jury and Salma Hayek convened a high-profile panel to discuss the role of women in cinema. There was plenty to talk about – but had anything really changed? The numbers seemed to speak for themselves: of the 19 films in competition, only two were directed by women. And then came 'Heelgate' – of which, more later… Faced with suggestions that the festival is sexist, artistic director Thierry Frémaux was having none of it. Cannes was being held to an unfairly high standard, he claimed, one not applied to other festivals like Venice or Berlin. His suggestion? Instead, people should “attack the Oscars”.
求职者犯的错,他们:
Stephen Curry scored 37 points to lead the defending NBA champions to their 12th straight win to open the season, a hard-fought 115-110 victory over the Toronto Raptors on Tuesday night.
The next step? Jalava plans to upgrade the finger with an RFID tag and add wireless support. He also wants to add more memory, which seems pointless to us. If he needs more storage, he has nine other fingers he can chop off and replace with flash drives.
由于今年是意大利标志性导演米开朗基罗·安东尼奥尼逝世10周年,为向大师致敬,将放映他的13部经典作品--从他的出道作品《某种爱的记录》到1995年的爱情片《云上的日子》。
大众创业,万众创新

欧普照明“基因式”升级 LED行业不破不立

References

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