Black Lives Matter. Still

I wonder. In the case of hands-free sinks and dispensers, the problem is very simply that they only calibrated things to white people. In the case of oximeters though I think it might be genuinely harder to measure what’s going on inside a dark hand than a light one. I mean, just visually I can look at my finger and see color from hemoglobin, in a way that people with lots more melanin can’t. Algorithms can only correct for so much if the source data isn’t measured well.

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Oximetry doesn’t use the absolute value, though. It uses the differential signal between two wavelengths that are absorbed by oxyhemoglobin and deoxyhenoglobin at different levels. That’s why adding a third wavelength that doesn’t have different absorbtion would help set the baseline. It should also be possible for the system to detect low transmission (due to dark skin or even just a thicker finger) and increase LED output level to compensate.

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It could very be that the O2 sensors were also calibrated with that bias, like a sample of people who were already getting arterial blood draws to measure O2?

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There is a new biopic about Emmett Till and Mamie Till-Mobley:

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:thinking: How many PDs exist, and what’s the average town manager’s salary? Asking for a friend… :smiling_imp:

Real Housewives Goodbye GIF

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I’ve been all over the state of North Carolina, but I don’t remember driving through a Cauca City, NC…

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wow. that sure is one way to defund the police :confused:

It’s unclear whether race had anything to do with the exodus but the employees who left were all white and Jones is Black


also kind of telling that the town is only 36% white identifying and not one of the cops is a person of color

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Make It Stop Tiffany Pollard GIF

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The order, signed Tuesday by Tulsa County District Judge Caroline Wall, allows Lessie Benningfield “Mother” Randle, 106, Viola “Mother” Fletcher, 107, and Hughes Van Ellis, Sr., 101, to continue seeking reparations under state nuisance laws.

Partial win, I guess, but given the age of the plaintiffs, the city could choose to just delay and wait. Stay tuned.

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Meanwhile, a Karen came for T.O. and he posted video of the close encounter of the racist kind:

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Colonial Williamsburg tells the story of early American settlers. But in 1956 it paved over Black history to make a parking lot

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The arc of history does not bend on its own, after all…

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