A biohybrid hand which can move objects and do a scissor gesture has been created. The researchers used thin strings of lab-grown muscle tissue bundled into sushilike rolls to give the fingers enough ...

24.3 x 29.7 cm. (9.6 x 11.7 in.) ...

As a consequence, the echoes generated in the focal zone have higher amplitudes. It is therefore not surprising that the Doppler is very dependent upon focus positioning (fig 6). Some machines help us ...