SSS 2010-09-03
时间：2019-01-08 作者：英语课 分类：Scientific American(九)月
Diseases can spread quickly. Someone with a cold infects a few casual contacts, who in turn infect others. Ideas can also spread that way, along so-called random 1 networks. But Damon Centola at MIT says that ideas and beliefs spread faster and more efficiently 2 when they’re reinforced in clustered networks, with overlapping 3 connections among the members.
Centola recruited more than 1,500 participants for what was billed as a Web-based health community. Each had an anonymous 4 profile and was matched with health buddies 5. In one group, a minimal 6 number of links connected the participants. The other group was denser 7, with redundant 8 links.
In each group, a seed participant was planted with an idea: to register for an online health forum 9. Whenever a member registered, the member’s contacts got the message. Ultimately, 54 percent of the participants in the clustered network signed up, compared with only 38 percent in the random network. And the behavior spread about four times faster in the clustered groups. The study is in the journal Science.
Centola thinks people are more swayed when they hear that multiple contacts are trying something new and that public health officials should take advantage of clustered networks to encourage people’s healthful behaviors.
Thanks for the minute.For scientific American's 60-Second Science.I' Cynthia Graber
- The list is arranged in a random order.名单排列不分先后。
- On random inspection the meat was found to be bad.经抽查，发现肉变质了。
- The worker oils the machine to operate it more efficiently.工人给机器上油以使机器运转更有效。
- Local authorities have to learn to allocate resources efficiently.地方政府必须学会有效地分配资源。
- There is no overlapping question between the two courses. 这两门课程之间不存在重叠的问题。
- A trimetrogon strip is composed of three rows of overlapping. 三镜头摄影航线为三排重迭的象片所组成。
- Sending anonymous letters is a cowardly act.寄匿名信是懦夫的行为。
- The author wishes to remain anonymous.作者希望姓名不公开。
- We became great buddies. 我们成了非常好的朋友。 来自辞典例句
- The two of them have become great buddies. 他们俩成了要好的朋友。 来自辞典例句
- They referred to this kind of art as minimal art.他们把这种艺术叫微型艺术。
- I stayed with friends, so my expenses were minimal.我住在朋友家，所以我的花费很小。
- The denser population necessitates closer consolidation both for internal and external action. 住得日益稠密的居民，对内和对外都不得不更紧密地团结起来。 来自英汉非文学 - 家庭、私有制和国家的起源
- As Tito entered the neighbourhood of San Martino, he found the throng rather denser. 蒂托走近圣马丁教堂附近一带时，发现人群相当密集。
- There are too many redundant words in this book.这本书里多余的词太多。
- Nearly all the redundant worker have been absorbed into other departments.几乎所有冗员，都已调往其他部门任职。