Samsung teams up with DreamWorks, Technicolor for 3-D   Mobile phone use may stave off, reverse Alzheimer's: study   Maoist supporters shut down 3 Nepal districts over shootings+   Rockets strike Kabul neighborhood, 3 wounded   Woman named Oyama killed at hotel near Little Tokyo in LA+   Nikkei snaps 3-day rally to fall on profit-taking+   Japan's new finance chief vows to boost economy   LDP to ask Diet to summon Hatoyama's mom, Ozawa, oppose budget bill+   Shanghai tainted milk problem kept secret for year   Main events scheduled for Friday, Jan. 8+   Australia, N.Z. launch investigations into whale hunt crash+   Samsung expects strong 4th-quarter profit   Global travel group opposes Delta-JAL tie-up   Ford says China sales up 44 percent in 2009   Review criticizes police in Calif. cop shootings   Sandra Bullock steals show at People's Choice   LEAD: Japan protests N.Z. over collision involving whaling vessel+   Historic DC site for White House history center   Citi faces legal action over severance pay: report   U.S. firm sues China, PC majors over filtering software