NEW HAVEN, May 6 (AP) - A New York University senior was arrested on Friday and charged with concocting a $43 million scheme to shuffle bogus multimillion-dollar checks between banks in Switzerland and Greenwich, Conn. Hakan Yalincak, 21, whose parents are major donors to N.Y.U., wept in court as Magistrate Judge Joan G. Margolis of the United States District Court ordered him held at Wyatt Detention Center in Rhode Island until a hearing on Thursday. "I have a graduation on Wednesday," Mr. Yalincak said. Mr. Yalincak, a mathematics major from Pound Ridge, N.Y., whose parents donated $21 million to the...