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• a  having a single pole

• The unipolar moment will surely last for at least a generation.
• All that talk of one superpower us bestriding a "unipolar" world seems as dated as Seinfeld reruns.
• Anyway, the world will not be unipolar.

• bipolar

News & Articles

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• Hall Effect Sensor ICs serve automotive applications.
  Unipolar S-57A1, used to detect open/close conditions (doors, seat belts, CD/DVD players, shift levers), and bipolar S-57K1, used to detect/measure rotation and direction (EPS motors, power windows, and windshield wipers), offer high-speed operation with respective tCYCLE times of 16 and 8 µsec. Operating from -40 to +125°C, products comes in SOT-23-3 (2.9 x 2.8 x 1.3 mm) and lead (Pb)-free ...
  June 11, 2013 - ThomasNet

Quotes

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• Yukio Hatoyama in Berkeley Daily Planet
  As a result of the failure of the Iraq War and the financial crisis, the era of the US-led globalism is coming to an end, and we are moving away from a unipolar world led by the US toward an era of multipolarity,Hatoyama told the Financial Times.
• Joe Lieberman in Forbes
  Sen. Joseph Lieberman, D-Conn., said the charge that the US "aspired to get unipolar power or acted unilaterally is just not borne out by the facts."
• Sergey Lavrov in FOXNews
  It proceeds from the philosophy of the unipolar world,Lavrov said. "Russia will demand an end to such practice that is absolutely incompatible with a modern world order."