One glance at the Major World Markets map on this page shows a picture that begs explanation. Two of the hottest emerging markets, China and Brazil, have dipped into losses for 2010. The big winner worldwide is Russia, with a 9.6% return. Holding the No. 2 slot is Japan — hardly the country you'd associate with fat growth. The iShares FTSE/Xinhua China Fund ETF gapped down Tuesday morning after the People's Bank Of China announced its