New York’s weather has lately been more like late March than the first month of the year but the ebullient "January effect” remains much evidence on the New York Stock Exchange. Stocks scored a second straight day of increases with Zale Corp. (ZLC) — which bills itself as “America’s diamond store since 1924″ — surging 11.69%. Alas Ruby Tuesday (RT) was strictly rhinestone on Thursday after announcing iffy earnings on Wednesday. It fell 5.78%. Taco Bell owner Yum Brands (YUM) rebounded 2.21% this as one of its employees was sent to the slammer for handcuffing himself to a female co-worker in the hope she would ...