Ionizing electromagnetic waves, usually harmful to most biological beings.

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Absorbed dose from a CT scan with relation to radiation accidents

I read somewhere that the average CTDIvol in CT scans at hospitals is ~40 mGy. This translates to the 'radiation intensity' at the center of the person, and can also be roughly interpreted as an '...
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E. coli UV exposure?

What amount of UV can E. coli survive? Or how should I phrase my query when searching for research on this topic? I know that UVC will kill E. coli after an amount of time, but I'm not finding much ...
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Lighting device efficacy for plant growth

Background Consider the following technologies: 100 lm/W OLED (2008, source) 303 lm/W LED (2014, source) 94 lm/W LEP (2015, source) For growing food, the preferred measurement is ...