In a recent study published in the journal Nature Biomedical Engineering, researchers developed a three-dimensional (3D) photoacoustic tomography (PAT) scanner for rapid vascular imaging. Visualizing ...
1. The stem of Piper methysticum consists of two systems of bundles, peripheral and pith, the latter being in two rows. 2. The peripheral bundles are of two sizes: primary, the larger; secondary, the ...
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