Better models for studying the flow of information in networks

Physicist Atieh Mirshahvalad uses network models to better understand the connection between the flow of information and social structures. Among other things she has introduced a group formation model for social systems. ...

Why is language unique to humans?

New research published today in Journal of the Royal Society Interface suggests that human language was made possible by the evolution of particular psychological abilities.

Grocery stores add tech features to stay competitive

Like many grocery shoppers, Michele Ricketts dreads long checkout lines. But lately, she's been breezing by the cash register at her neighborhood Ralphs even with the usual crowds at the store.

Global warming has increased risk of record heat, scientists say

Drought shriveled crops in the Midwest, massive wildfires raged in the West and East Coast cities sweltered. The summer of 2012 was a season of epic proportions, especially July, the hottest month in the history of U.S. weather ...

Arresting model stops cars

Researchers in China have developed a mathematical model that could help engineers design a flexible vehicle-arrest system for stopping cars involved in criminal activity or terrorism, such as suspect car bombers attempting ...

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