PNG IHDR dC$ tEXtSoftware Wolfram Mathematica 7.0C[ !tEXtCreation Time 2011:02:01 00:03:175 IDATxyuU{{ƒ&gh@XBA$&ClCO@IIUR@L12 ㄊcbhzsk{9n۽zu{^^wrI DŽWJ"" ߤD( N",K"e HG!Wq "qB'mu LZGa>?)cfܦPyºp XvHAPJTt{ j:8uhVDD 95z4D>m.(%z&҉_-bՠB(_b!ɕ?۵dH8߿4TRO=@ J붲piS"JcBh[ & dYrO,(%{QuGcXlߠ'ZG@=W$y;$$td"^ITqw 9<4!\v&Ԭ$TNUq5Õ$LEZxq+¿\D"{^i Ts/P+b=K ͌2Ne7^!d]*p⭇0Q`1+ sZoz Y!/t,D [kGbXaY`_*~%e'}jD V)ZwEzlyOcOk~-=ۀ N"<5"3|N;IpZ Dr8a=p*I =2RqsȮp;q{jP~HB9_~0Xl>Q+CC5yIH4[CZc:>~A sC膝dRRv<`r͑~R+(T3;c'y._!6X,?S[6-LNb~qH`|Gۀ`n uPݻ K=MQ|y0l[ F4l린k܃ NJ!l8Z Ľh6sM{$s<MB[&8 {a_8+ ϸ~rY5g&O8< Njo{xD$&38kwna $<{S`v$H9]I.8C {TG|>SOu pC0o\i 8˚rl;#byA ;"/??Kp CI̸o