CLiP 2006 King's College London, 29 June - 1 July, 2006 PAPER ! " # # $ % " " & ' ( " % ) & # ' &* " " & + + # # , - # # - # - . & # - ' - # - - # ' - ' " "" ) , - - ' - & - # " & - &- ' " / ! ! "" &* & CLiP 2006 King's College London, 29 June - 1 July, 2006 ( " & 0 " # 1 - " &- # & 2 " ' # / " " & # # $ 3 % " 4 .# . % - " - - - % 5 . & - & "- '- % 6 5 . ' - - - " - - - - - & " 4 1 # . 3,*7*%*8- 89*8, & 69$ % 3,*7*%*8 ) & ' - - "" "- " ' % 89*8, ) "" - " & - - ' % 69$ ". ) & ( ) . & # - ". & # . " ) # * + % 6 1:: ; <;98 !/: ; =" , -$ . / # # & " " ! , ( $ 1 2 > / 3 CLiP 2006 King's College London, 29 June - 1 July, 2006 , ! / 0 ? - !@@!.!A1( # !A(: % % 9 B- ," C 3 6 & 0 # 7 !A(( % $ 9 D 7 , / 0 8 # , - !@E( . !AFA 8 ; - " !@EF . !AF@ # !A(F % ; 9 D 6 & 0 % 9 7 , / 0 9 3 - ! " ! #!! !!" $$ % && ' !A(E % $ 9 8 3 6 7 ,= # #- 8 3 - $ !A(E CLiP 2006 King's College London, 29 June - 1 July, 2006 ,( / (0 9 D .9) G !@EA.!AF1 $# & ($## !A2F , 7 ," " # 6 # # & $ $ - 7= HI ,* % / *0 9 ? # J 7 % ) & $ ;- )- J- $ (::2