2011 Nobel Peace Prize has "included the Arab Spring... but we have put it in a particular context."

Unless the new governments include women "there will be no democracy."

The Nobel Committee characterizes the prize to Yemeni rights campaigner Tawakkul Karman as a "signal" to the Arab world to deal with "the oppression of women."

Sharing the prize are Liberian President Ellen Johnson Sirleaf, Liberian activist Leymah Gbowee.

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Ellen Johnson Sirleaf — Africa's first elected female head of state — is a graduate of the University of Wisconsin. She received a degree in accounting in 1964.