Science news articles about 'nicholas a christakis'

... by the Robert Wood Johnson Foundation. Researchers Nicholas A. Christakis, M.D., Ph.D ... living miles apart and in separate households,” said Christakis. “Rather, the closeness of the relationship in the network was key ...

... . Fowler, UCSD Department of Political Science and Nicholas A. Christakis, Harvard Medical School, mapped the social networks of 8,349 adolescents in grades ...

... David G. Rand, Martin A. Nowak, and Nicholas A. Christakis, Hill broke down the spread of obesity into three components: the rate at which obesity has spread ...