Anyone with an older phone that’s currently connected to the O2 network needs to upgrade immediately. The popular UK provider has just issued a final warning, and ignoring it could leave some without ...

The Chief Technology Officer (CTO) of broadband and mobile provider Virgin Media and O2 (VMO2), Jeanie York, has today confirmed that they’re “set to complete” their switch-off of the old legacy 3G ...

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If your oxygen saturation level drops below 92%, seek medical help right away. A dangerously low oxygen level can make you feel short of breath or confused, or cause chest pain. Low oxygen can lead to ...

Photocatalytic synthesis of H2O2, as a potential alternative to the industrial anthraquinone process, does not require additional energy input and is a nontoxic and pollution-free process, which has ...