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The theme throughout the memo was how to slow the increase in benefit costs without giving more ammunition to critics who contend that Wal-Mart 's wages and benefits are dragging down those of other American workers . A theme throughout these elements is that of close linkage with industrial experts to complement the fundamentals of the material presented . Peace and persuasion were strong Greenpeace themes throughout 2004 . The impact of African American music on American society is an important theme throughout the exhibition . For the time being , it is best to adopt a sceptical approach to anti-ageing products.A common theme throughout in many suggested treatments is their antioxidant activity . Another re-occuring theme throughout the convention was the 25th anniversary of the invasion of Cyprus . While Egoyan has remained remarkably consistent in his themes throughout the shift in his means of presenting them , it is important to note the increased self-consciousness with which those themes are presented in the post-Exotica films , a self-consciousness in which the above claim to continuity participates . These ideas remained important themes throughout his life . The key themes throughout all three goals are to fund new research and to translate research into practice .