The complexity of many biological, social and technological systems stems from the richness
of the interactions among their units. Over the past decades, a variety of complex systems …

Social relationships promote health and wellbeing. Brain regions regulating social behavior
continue to develop throughout adolescence, as teens learn to navigate their social …

Cytoscape is a popular bioinformatics package for biological network visualization and data
integration. Version 2.8 introduces two powerful new features—Custom Node Graphics and …

Here, we review the research we have conducted on social contagion. We describe the
methods we have employed (and the assumptions they have entailed) to examine several …

Social networks show striking structural regularities,, and both theory and evidence suggest
that networks may have facilitated the development of large-scale cooperation in humans …

We live life in the network. We check our e-mails regularly, make mobile phone calls from
almost any location, swipe transit cards to use public transportation, and make purchases …

A growing literature in human social genomics has begun to analyze how everyday life
circumstances influence human gene expression. Social-environmental conditions such as …

Human populations are both highly cooperative and highly organized. Human interactions
are not random but rather are structured in social networks. Importantly, ties in these …

Work in political communication has discussed the ongoing predominance of negative
news, but has offered few convincing accounts for this focus. A growing body of literature …

Theoretical models suggest that social networks influence the evolution of cooperation, but
to date there have been few experimental studies. Observational data suggest that a wide …