Abstract: This paper proposes a structure composed of two-dimensional periodic columns to reduce the start current density of multi-beam which excites Super-radiant Smith-Purcell radiation. The ...

German authorities said Thursday they have taken down a major online marketplace for drugs, cybercrime services and fraudulently obtained credit card data. Investigators seized the Nemesis Market ...

China's manufacturing PMI remains below growth threshold at 49.8 Non-manufacturing PMI slows to 50.0 from 50.3 in August Separate private sector factory activity PMI at 51.2 from 50.5 Overall economic ...

The torture and killing of two young women and a teenage girl, live-streamed on social media to an audience of dozens, has sent shockwaves through Argentina and triggered protests across the country.

A man is dead after being hit by two vehicles in Minneapolis on Saturday afternoon. Minneapolis police say that at about 3:07 p.m., officers responded to a crash at Franklin Avenue East and Cedar ...

WOODHAVEN, Queens (WABC) -- A 4-foot python was rescued in a Queens park on Wednesday, but two others are still on the loose. A rescuer from Puppy Kitty NYC spotted a man poking at three snakes in the ...

Julia Falcon is a digital content producer at CBS News Texas. Julia has previously written for news outlets across Dallas-Fort Worth like the Denton Record-Chronicle, D Magazine, 1080 KRLD and 105.3 ...

Britons are being hit by a tidal wave of 'robo calls' which use technology to mimic the voices of human call centre agents. The Information Commissioner's Office, which enforces data protection rules, ...

Get the latest federal technology news delivered to your inbox. Department of Government Efficiency personnel have jeopardized the security of Americans’ personal information by uploading sensitive ...

Megyn Kelly has claimed that Erika Kirk, widow of the slain conservative activist Charlie Kirk, was left “genuinely rattled” by a tongue-in-cheek article by a journalist claiming to have paid a witch ...

Ukrainian drones struck the Russian port city of Novorossiysk on Wednesday, attacking from both the air and the sea. The city is home to Russia’s largest seaport, which houses a major oil terminal and ...