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...treat people as interchangeable nodes. There’s heterogeneity at the level of nodes of network that needs to be accounted for,” Christakis said. The researchers developed a new model, called the “attract and introduce” model, which outperformed the previous models by including heritable traits of social networks. This new model is based on two parameters: people’s attractiveness level and their tendency to introduce their friends to one other. “The basic idea is that if people are interconnected, their healths are interconnected, if we really...
...expected to rise to 8.2% in 2009, up from 6.7% last year. The country, which boasts a 4,500 km-long coastline, is also on the front line of African immigration into Europe. Some 36,000 immigrants arrived on Italian shores in 2008, up from 22,000 the previous year, according to the United Nations High Commission on Refugees. (As a measure of how desperate people are to get to Italy, at least 525 died trying.) (See pictures of the Venice floods...
...Between the crippling ice storms that left millions stranded during the Chinese New Year holiday last January and February and the Sichuan earthquake in May that killed 88,000, catastrophes touched a wide swath of the country and caused nearly $200 billion in damage - more than four times the previous year...
...connections established on the trip to help him find an internship this summer. Today, $40 in annual dues to Harvardwood unveils myriad potential connections, but in the mid-80s—when the current generation of Hollywood executives and producers moved to Hollywood after graduation—few previous alums had established themselves in the industry. The Harvard diploma meant little more than the absence of a film degree. “When I first came out here, you could count the Harvard people on two hands,” Mostow said. “Moving to Hollywood was like...
...Sunni identity. Since then, he and his party have been working to promote a more secular approach to Iraqi governance, and the preliminary returns released on Thursday for Iraq's provincial elections show they are making gains - at least relative to their marginalization in the two previous national elections. (See pictures of the return to normalcy on Iraq's streets...