Focused ultrasound and microbubbles have been extensively used to generate therapeutic bioeffects. Despite encouraging in vivo results, there remains poor control of the magnitude and spatial distribution of these bioeffects due to the limited ability of conventional pulse shapes and sequences to control cavitation dynamics. Thus current techniques are restricted by an efficacy-safety trade-off...

Virtually all MRI sequences produce images with some degree of T1 weighting, in fact probably the only sequence that has no T1 weighting would be a single RF pulse acquisition such as gradient echo EPI performed in isolation (with an infinite TW). Therefore in principle the vast majority of pulse sequences could be used to measure T1 by simply adjusting their timing or flip angles to change the...

The robustness of quantum gates in the presence imperfections classical control fields that drive is an important issue computation. authors extend technique composite pulses and construct two pulse sequences provide against time-dependent drift amplitude pulses.