Abstract: We describe an evaluation of photoplethysmography (PPG) signals with two wavelengths channels (infrared and red) using a wrist-worn sensor for the estimation of heart rate variability (HRV) ...

Abstract: In this work, a detection and classification method for sleep apnea and hypopnea, using photopletysmography (PPG) and peripheral oxygen saturation (SpO 2) signals, is proposed. The detector ...

When fall has given way to winter and snow covers the ground while lights twinkle from house to house, you know that Christmas is coming. Christmas is one of the most important Christian and cultural ...

The ring itself is made from titanium with a PVD coating and there’s a non-allergenic and seamless inner surface that sits ...

Marshall Hargrave is a stock analyst and writer with 10+ years of experience covering stocks and markets, as well as analyzing and valuing companies. Yarilet Perez is an experienced multimedia ...

Apple Watch Ultra 3 is in the process of redefining what it means to wear a real, rugged, high-performance smartwatch. It’s ...

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Irish and Irish Americans tend to throw around phrases like "Sláinte" and "Top of the morning to ye" - especially on St. Patrick's Day! - but how many of us really know what these beloved Irish ...

Now up to 30% off in what remains of the brand's Boxing Day sale, shoppers can get as much as £150 off. This includes the ...

Timi is a news and deals writer who's been reporting on technology for over a decade. He loves breaking down complex subjects into easy-to-read pieces that keep you informed. But his recent passion ...