Internet emerges as social research tool

For the past two decades, the Internet has been used by many as an easy-to-use tool that enables the spread of information globally. Increasingly, the Web is moving beyond its use as an electronic "Yellow Pages" and online ...

Tracking the digital traces of social networks

Why do we create and maintain social networks? Most people can immediately think of a few natural reasons -- we get something from the interaction, or the person is nearby and is close to us in proximity, age or gender.

Exploring planets in distant space and deep interiors

In recent years researchers have found hundreds of new planets beyond our solar system, raising questions about the origins and properties of these exotic worlds—not to mention the possible presence of life. Speaking at ...

Molecules self-assemble to provide new therapeutic treatments

Researchers in the laboratory of Samuel I. Stupp at Northwestern University have an interesting approach for tackling some major health problems: gather raw materials and then let them self-assemble into structures that can ...

US petroleum dependency factor of history

When the Drake Oil Well in Titusville, Pennsylvania began seeping crude oil 150 years ago, humanity allowed itself to become engulfed in the ecology of oil, according to a Penn State environmental historian. Now in the midst ...

Decisive action needed as warming predictions worsen, says expert

Greenhouse gases in the atmosphere are rising more rapidly than expected, increasing the danger that without aggressive action to reduce emissions the climate system could cross a critical threshold by the end of the century, ...

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