''Most roads allow cars to flow in both directions. However, in some circumstances, such as congested city streets, it makes sense to limit traffic to one direction only. With electricity it is also useful to "rectify"currents -- that is, make them move ...'

''Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced two new fully integrated analog front ends (AFEs) with a continuous wave (CW) Doppler mixer for mid- to high-end, Spectral Doppler ultrasound equipment [view video]. The AFE5807 and AFE5808 ...'

''Researchers have developed an automated 3-D mapping and labeling system that reduces scan time and improves the work flow, efficiency, and accuracy of routine freehand ultrasound exams, according to a study to be presented at the ARRS 2010 Annual Meeting ...'

''Mental stress causes carotid artery dilation and increases brain blood flow. A series of ultrasound experiments, described in BioMed Central's open access journal Cardiovascular Ultrasound, also found that this dilatory reflex was absent in people with ...'

''(PHILADELPHIA) Using a special ultrasound technique to spot areas of blood flow in the prostate gland may substantially reduce the number of unnecessary biopsies, according to a new study by urologists and radiologists at the Jefferson Prostate ...'

''DALLAS - Sept. 10, 2007 - A vascular surgery technique pioneered at UT Southwestern Medical Center, in which veins are removed from the thigh to repair the aorta does not create blood-flow problems and painful side effects in a majority of patients, ...'