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How does the Darma - Smart Cushion work? Explanation of the new fiber loop ring-down spectroscopy

How does the Darma - Smart cushion monitor your sitting position and obtain the breathing rate, body movements, and BCG (Ballistocardiography) signals? The creators say that they accomplish this by ...
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Medical/Physics Question - Cut Off Finger Preservation

This question might require some knowledge of medical/tissue, but physicists seem to know everything, so figured I've give it a shot here ;) When people put cut off fingers they are told to put the ...
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Difference between conventional spiral/helix CT and multi-slice spiral CT

I'm currently learning about CT scanners, and come across conventional spiral/helix CT, and then multi-slice spiral CT. What I can get out of it is, that the multi-slice scanner have a lot more ...
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What is the difference between primary and volume currents in electromagnetism?

What is the basic difference between the two currents and how each is contributing to the magnetic field at source and the surface?
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The 4 R's of radiotherapy - redistribution

I'm having some trouble of getting a grasp of this term, so I hoped someone could enlighten me. As far as I understand, the idea behind it is, that cells have different cycles in their "life", and in ...