Abstract: Recent studies investigated the feasibility of using an RGB camera to estimate peripheral oxygen saturation (SpO2), i.e., “Ratio of Ratios” by red (R) and green (G) channels and calibration ...

Marketing is arguably one of the largest and most scrutinized investments in any business, but for too long, marketers have had to rely on lagging indicators, dashboards, and attribution models that ...

Gallup will no longer track presidential approval ratings after more than eight decades doing so, the public opinion polling agency confirmed to The Hill on Wednesday. The company said starting this ...

The monthly poll has been used to measure presidential performance for almost nine decades. By Ruth Igielnik After nearly 90 years, the Gallup Organization will no longer track presidential approval ...

Landon walked into my 10th-grade classroom holding his mother’s hand tightly. He was anxious about his score on the English Language Arts state test. A year ago, Landon’s score was in one of the ...

A bill before state lawmakers pushes back the date when Oregon’s stalled gun control Measure 114 would kick in and raises the cost of gun permits and other fees, should the state Supreme Court find ...

Placebo effects are real, powerful, and deeply human, as I've discussed in my previous article. But a thorny question remains: How can we tell whether a depression treatment is producing genuine ...

For most of our lives, power systems have been relatively predictable. We planned and operated grids dominated by large synchronous machines. Physical inertia was inherent, behaviors were well ...

As the biggest winter storm in four years blankets New England, snow will quickly begin accumulating on the ground with plenty of cold air in place across the region. That said, snowfall totals ...

Pennsylvanians woke up to a blanket of snow, a winter storm that was forecast throughout the week. But how can you measure exactly how much snow fell in your neighborhood? The National Weather Service ...

WASHINGTON — The Pentagon is shifting from height and weight tables and replacing them with a waist-to-height ratio methodology, according to a memo. The new body-fat standards are between 18% and 26% ...

WASHINGTON — The Senate fired a warning shot at President Donald Trump, voting Thursday to advance a bipartisan resolution to block him from using military force “within or against Venezuela” unless ...