Semyachkina-Glushkovskaya Oxana V. RussiaSaratovSaratov State University, 410012, Russia, Saratov, Astrakhanskaya street, 83glushkovskaya@mail.ru Author's articles Optical Clearing of Cranial Bone by Multicomponent Immersion Solutions and Cerebral Venous Blood Flow Visualization Dynamic and Spectral Characteristics of Time Series Describing Pulse Wave Velocity