a positive wave following an upright T wave of the electrocardiogram. It is negative following an inverted T wave. a small, rounded wave that follows the T wave on an electrocardiogram. Normally its polarity is that of the T wave. Its mechanism is unknown. The U wave becomes taller in hypokalemia and inverted in heart disease. It may signify decreased potassium levels in the blood.
Also part of the field of autonomous vehicles and automated driving is the Live Roads technology. Here is currently developing such a technology that will be able to alert drivers of conditions such as weather to alert other drivers of possible hazards, or to avoid a particular area whilst driving.
Technology Provides Context. One of the positive aspects of today's technologies is the potential to provide learners with a context for their language study. Part of this is because technology can help imitate and create the associations, the social settings, the events, the sounds, the sights, etc. Through video we see things in context.