Artem Yakovliev: Laboratory X-ray Spectroscopy and Imaging as a Preliminary Step

New channel Kyiv Academic University: title sample judged 'pick' (Mostly genuine graduate-level lectures, seminars, and technical webinars, but mixed with a handful of promotional/testim); passed a second screen for sellers/exam-prep/re-uploads; 0 of 3 sampled transcripts showed teaching, 0 not; titles picked one by one, checked strictly; oEmbed verified.