Professor Fawaz Gerges, head of the Middle East Centre at the London School of Economics, said Syrian President Bashar al-Assad looked "confident" and "defiant" in his speech in Damascus today.
Professor Gerges added that the speech showed that Assad was not on the "verge of imminent collapse."
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Mr Kim has made two recent visits to China.
The study looked at the development of 422 children over the course of eight years.
The president said they will come into force if China refuses to change its practices.