Metals 69 Dissertations, Academic (Ph.D) 65 Chemistry 41 Heavy metals 34 Nanostructured materials 29 Engineering 28 Transition metals 26 Consolidation and merger of corporations 25 Thesis (Ph.D)-Chemistry 24 Rare earth metals 23 Mites 22 Research 22 Thesis (Ph.D)-Physics 21 Mergers and acquisitions 20 History 19 Mergers 19 Biochemistry 17 Economics 17 History and criticism 17 Literature 17 Catalysis 16 China 16 Nanotechnology 16 Organometallic compounds 16 Methodology 15 Organic compounds 15 Religion 15 Organometallic chemistry 14 Philosophy 14 Analysis 13