J H Lensen, S E M J Stoltz, M Kleinjan, A E M Speckens, J T Kraiss, R H J Scholte
Mindfulness-based stress reduction intervention for elementary school teachers: a mixed method study
Trials
chemical elementary composition internal arrangement spatial distribution components ancient greek copper coins studied using xrf analysis neutron diffraction neutron tomography methods studied coins interesting historical cultural point view charons obols coins discovered location ancient greek settlement archaeological excavations volna1 necropolis krasnodar region russian federation determined coins mainly made bronze alloy tin content falls range 112793 wt coins highly degraded corrosion patina areas occupy volumes 27 62 original coin volumes neutron tomography method provided 3d data spatial distribution bronze alloy patina corrosion contamination inside coin volumes also restored minting pattern several studied coins taking account obtained results origin use coins light historical economic processes bosporan kingdom discussed