US moves to tackle scourge of 'robocalls'

"Hello? Who's calling?" For many Americans these days, the call is coming from a "bot" or automated program that seeks to trick them into giving up money or important personal data.

A new low-latency congestion control for cellular networks

Heavy traffic on narrow roads could be one of the leading causes of traffic congestion, which also applies to communication networks. If more data is collected than the allowed data capacity can accommodate, communication ...

Security gaps identified in internet protocol IPsec

In collaboration with colleagues from Opole University in Poland, researchers at Horst Görtz Institute for IT Security (HGI) at Ruhr-Universität Bochum (RUB) have demonstrated that the internet protocol IPsec is vulnerable ...

How to outwit noise in quantum communication

How to reliably transfer quantum information when the connecting channels are impacted by detrimental noise? Scientists at the University of Innsbruck and TU Wien (Vienna) have presented new solutions to this problem.

Severe ozone depletion avoided

We are already reaping the rewards of the Montreal Protocol, with the ozone layer in much better shape than it would have been without the UN treaty, according to a new study in Nature Communications.

Video: Earth's ozone layer

Several decades ago, chlorofluorocarbons (CFCs) were chemicals used in hairspray, deodorants, foam products, air conditioners and more. In 1974 chemists Sherwood Rowland and Mario Molina published a paper that indicated ...

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