A PaO2 test measures partial pressure of oxygen, or PaO2—the oxygen pressure in arterial blood. The PaO2 reflects how well oxygen is able to move from the lungs to the blood. It is often altered by ...

O2 has revealed the first area set to lose a long-running service as the UK prepares for a major shake-up to data connections. And it's a change that will affect other networks running off the ...

Virgin Media O2 has issued an update ahead of a major change to services this year. The mobile phone and telecoms provider will shut down its 3G mobile data service later this year following ...

Specifically, the blue-green algae (or cyanobacteria) that emerged and proliferated about 2.4 billion years ago would have been able to produce more oxygen as a metabolic by-product because Earth's ...

One of the most common first sensors people buy for their home is a motion sensor. But in almost all cases, you want a presence sensor instead. The one I'd want is the FP300, which Aqara released ...

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level ...

O2 is closing down its pay-as-you-go data only mobile SIM services later this month. These SIMs allow you to pay for internet data which you have to use within a certain number of days. There are ...

People with obstructive sleep apnea (OSA) typically have low oxygen levels when they sleep because of gaps in their breathing. Blood oxygen during sleep is considered low if levels are below 95%.