Egypt blocks more internet sites

Egypt, under fire for muzzling freedom of expression, has blocked access to around 60 news websites and service providers since the end of May, rights groups and media figures said Monday.

Winning climate strategy demands details

When understanding a country's climate - especially vast countries like the United States or China - to protect food security, biodiversity and human health, the devil is in the details.

Chemists perform 'surgery' on nanoparticles

A team of chemists led by Carnegie Mellon University's Rongchao Jin has for the first time conducted site-specific surgery on a nanoparticle. The procedure, which allows for the precise tailoring of nanoparticles, stands ...

Learning with light: New system allows optical 'deep learning'

"Deep Learning" computer systems, based on artificial neural networks that mimic the way the brain learns from an accumulation of examples, have become a hot topic in computer science. In addition to enabling technologies ...

Peatlands, already dwindling, could face further losses

Tropical peat swamp forests, which once occupied large swaths of Southeast Asia and other areas, provided a significant "sink" that helped remove carbon dioxide from the atmosphere. But such forests have been disappearing ...

page 1 from 8