Operating Margin: What It Is and Formula

A company's operating margin is the profit it makes on a dollar of sales after accounting for the direct costs involved in ...

Is your VO2 max confusing you? Here’s how bodyweight impacts this metric and how to find the right score

VO2 max is more nuanced that you might think – so here’s how to know where your aerobic fitness really stands ...
IEEE

Exploiting Multiwavelength Pulse Transit Time to Improve the Calibration of RGB-Camera-Based SpO

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 ...
Australian Broadcasting Corporation

Mortgage repayment calculator: How much extra you could be paying now the cash rate is 4.1 per cent

The Reserve Bank of Australia (RBA) has hiked interest rates by 0.25 of a percentage point. That means the cash rate is now 4.1 per cent. Leading economists predicted the hike, given inflation was ...
Scientific American

Mathematicians find one pi formula to rule them all

Celebrate Pi Day and read about how this number pops up across math and science on our special Pi Day page. For more than two millennia, mathematicians have produced a growing heap of pi equations in ...