By Deborah Levine
NEW YORK (MarketWatch) -- Treasury prices pared losses on Thursday, though still pushed yields up a second day, after the U.S. Labor Department said jobless claims unexpectedly rose by 17,000 in the latest week to 474,000. Ten-year note yields (UST10Y 3.43, +0.05, +1.42%) rose 2 basis points to 3.45%. Still to come, the main event for the day is the auction of $13 billion in 30-year bonds (UST30Y 4.41, +0.04, +0.94%) -- the last bond sale of the decade.