Philosophy 50 Action research 44 History 40 Research 40 Management 39 Social action 38 Women 36 Biochemistry 35 Hormones 31 Pharmacology and Toxicology 30 Education 28 Sociology 28 Action research in education 26 Social aspects 25 Human rights 24 Economics 23 Enzymes 23 Social sciences 23 Social Sciences 22 Climatic changes 21 Feminism 21 Mass media 21 Social change 19 Evaluation research (Social action programs) 18 India 18 Psychology 18 Communication 17 Ethics 17 Economic development 16 Social conditions 16