Disclosed are a light sensitive composition comprising an addition polymerizable ethylenically unsaturated monomer, a photopolymerization initiator and a polymer binder, and a light sensitive planographic printing plate material comprising a hydrophilic support, and provided thereon, the light sensitive composition, wherein the photopolymerization initiator is a trihalomethyl group-containing oxadiazole compound represented by the following formula 1 or 2, ##STR1##

 
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> Anti-bacterial compounds directed against pilus biogenesis, adhesion and activity; co-crystals of pilus subunits and methods of use thereof

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