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.
Here's origins lie in Navteq (styled NAVTEQ), an American company founded in 1985 as Karlin & Collins, Inc., later known as Navigation Technologies Corporation and eventually as Navteq. The company was acquired by Finnish telecommunications firm Nokia in 2008 and became a subsidiary. Nokia ran Navteq's business along with their own Nokia Maps (later known as Ovi Maps, then again as Nokia Maps from 2011), which was based on technology from Gate5, a Berlin-based company that Nokia purchased in 2006.
A couple of weeks ago we took a look at the top 25 tech workplaces, based on employee reviews at Glassdoor. We're here to tell you there's been a little shakeup atop the list. Facebook is now the best place to work in tech. Previously, Facebook had been excluded from our list thanks to technicalities.We arrived at our original list by considering companies Glassdoor.com categorizes as tech that also had at least 25 reviews of both the company and its chief executive officer.e're here to tell you there's been a little shakeup atop the list. Facebook is now the best place to work in tech. Previously, Facebook had been excluded from our list thanks to technicalities.