-\usefonttheme{structureitalicserif}
\usefonttheme{serif}
\setbeamerfont{author}{family=\rmfamily}
\setbeamerfont{footline}{shape=\scshape,family=\rmfamily}
-\setbeamerfont{title}{size=\large}
+\setbeamerfont{title}{size=\large,shape=\itshape}
\setbeamerfont{subtitle}{size=\normalsize}
\setbeamerfont{block body}{shape=\upshape}