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Current results range from 1975 to 2022
- Science and Technology324
- Information technology122
- Science and technology110
- Energy Technology44
- Government policy20
- Universities and colleges18
- Science education16
- Education--Study and teaching15
- Biotechnology14
- Protest movements14
- Power resources13
- Arts12
- Energy12
- Culture11
- Medical technology11
- Public safety11
- Business10
- Education10
- Energy policy10
- Environmental education10
- Geology10
- Political campaigns10
- Public administration10
- Engineering9
- Industries9
- Technical assistance9
- Mass media--Political aspects8
- Universities and students8
- Community development7
- Consumer protection--Economic aspects7
- Laws7
- Local government7
- Museum exhibits7
- Elections6
- Environment6
- Health6
- Labor unions6
- Transportation6
- Advertising5
- Animal welfare5
- Artists5
- Consumer protection5
- Hydrocarbons5
- Natural gas5
- Renewable energy resources5
- Rural development projects5
- Sustainable development5
- Banks and banking4
- City planning4
- Employment4
- International business enterprises4
- Labor4
- Military Technology4
- Political participation4
- Social justice4
- Animal rights3
- Biodiversity3
- Community organization3
- Diseases3
- Economic and social development3
- Employee rights3
- Energy conservation3
- Environmental protection3
- Foreign relations3
- History3
- Industrialization3
- Infrastructure (Economics)3
- Libraries3
- Literature3
- Local government --Economic aspects3
- Mass media3
- Medical care3
- Nuclear technology3
- Politics3
- Politics and government3
- Social conditions3
- Women's rights3
- Agriculture2
- Agriculture--Handbooks, manuals, etc.2
- Armed Forces2
- Astronautics2
- Bible2
- Catholic Church2
- Cities2
- Economic development2
- Economic development projects2
- Economic policy2
- Economics2
- Education and state2
- Education, Higher2
- Educational law and legislation2
- Family2
- Festivals2
- Forests and forestry2
- Freedom of expression2
- Gender2
- Health policy2
- Health--Environmental aspects2
- Human rights2
- Indigenous peoples2
- Indigenous women2
- Politics and government91
- Information technology49
- Science and technology21
- Government policy20
- Protest movements14
- Political campaigns10
- Public administration10
- Public safety9
- Energy Technology8
- Mass media--Political aspects8
- Laws7
- Local government7
- Elections6
- Transportation6
- Universities and students5
- Energy policy4
- Military Technology4
- Political participation4
- Science education4
- Community organization3
- Energy3
- Foreign relations3
- Hydrocarbons3
- Industries3
- Labor3
- Nuclear technology3
- Politics3
- Politics and government3
- Universities and colleges3
- Armed Forces2
- Employment2
- Engineering2
- Infrastructure (Economics)2
- Latin America--Relations--United States; United States--Relations--Latin America2
- Local government --Economic aspects2
- Mass media2
- Political parties2
- Power resources2
- Social justice2
- Women's rights2
- Administrative regulations1
- Advertising--Tourism1
- Arts--Political aspects1
- Biotechnology1
- Catholic Church1
- Child welfare1
- Citizen participation1
- City planning1
- Community development1
- Consumer protection1
- Consumer protection--Economic aspects1
- Courts1
- Democracy1
- Economic policy1
- Education1
- Education--Study and teaching1
- Environment1
- Environmental health1
- Environmental protection1
- Festivals1
- Fiscal policy1
- Gender1
- Genetically modified foods1
- Government accountability1
- Health facilities1
- Health--Environmental aspects1
- Imperialism1
- International business enterprises1
- International cooperation1
- Labor and globalization1
- Labor unions1
- Literature1
- Mass media--Economic aspects1
- Medical care1
- Medical technology1
- National security1
- Natural gas1
- Oil industries1
- Philately1
- Power resources--Environmental aspects1
- Presidents1
- Prisons1
- Public works1
- Social movements1
- Strikes and lockouts1
- Students--Political activity1
- Sustainable development1
- Technical assistance1
- Terrorism1
- Tourist maps1
- Urban transportation1
- Women--Employment1
- Environment and ecology58
- Energy Technology24
- Science and technology15
- Energy policy10
- Environmental education10
- Energy7
- Information technology7
- Environment6
- Geology5
- Natural gas5
- Power resources5
- Renewable energy resources5
- Sustainable development5
- Government policy4
- Biodiversity3
- Energy conservation3
- Environmental protection3
- Hydrocarbons3
- Industries3
- Local government --Economic aspects3
- Biotechnology2
- Community development2
- Community organization2
- Forests and forestry2
- Natural disasters2
- Natural resources2
- Petroleum industry and trade2
- Protest movements2
- Rural development projects2
- Technical assistance2
- Water resources2
- Water use2
- Advertising1
- Agriculture1
- Animal culture1
- Astronautics1
- Community development--Environmental aspects1
- Conservation of natural resources1
- Democracy1
- Ecology1
- Economic development projects1
- Economic policy1
- Education1
- Education, Higher1
- Education--Study and teaching1
- Engineering1
- Environmental health1
- Fish trade--Environmental aspects1
- Health facilities1
- Health--Environmental aspects1
- History1
- Indigenous women1
- Industrial accidents1
- Industrialization1
- Industries and industrial policy1
- Infrastructure (Economics)1
- Laws1
- Local government1
- Nature conservation1
- Nuclear technology1
- Oil industries1
- Older people1
- Political participation1
- Pollution1
- Power resources--Environmental aspects1
- Public safety1
- Small business1
- Social justice1
- Social policy1
- Sustainable agriculture1
- Traditional farming1
- Universities and colleges1
- Urban policy--Environmental aspects1
- Urban transportation1
- Vocational education1
- Work environment1
- Education56
- Science and technology31
- Universities and colleges18
- Information technology17
- Science education16
- Education--Study and teaching15
- Education10
- Universities and students8
- Engineering5
- Government policy5
- Animal rights3
- Medical technology3
- Protest movements3
- Biotechnology2
- Culture2
- Education and state2
- Education, Higher2
- Educational law and legislation2
- Libraries2
- Music2
- Popular education2
- Transportation2
- Vocational education2
- Adult education1
- Business1
- Catholic Church1
- City planning1
- Community development1
- Community development--Environmental aspects1
- Conservation of natural resources1
- Economic development projects1
- Economics1
- Education, Secondary1
- Educational system1
- Energy1
- Energy Technology1
- Environmental education1
- Environmental protection1
- Indigenous women1
- Industrialization1
- Mass media1
- Mass media--Political aspects1
- Men1
- Mental health1
- Motion pictures1
- Multicultural education1
- Natural gas1
- Petroleum industry and trade1
- Photography1
- Power resources1
- Rural development projects1
- Social conditions1
- Students--Political activity1
- Teaching--Aids and devices1
- Technical assistance1
- Women1
- Women's rights1
- Women--Education1
- Socioeconomic conditions and development50
- Information technology18
- Science and technology14
- Energy Technology13
- Power resources13
- Technical assistance9
- Community development7
- Hydrocarbons5
- Social justice4
- Economic and social development3
- Engineering3
- Public safety3
- Renewable energy resources3
- Social conditions3
- Sustainable development3
- Arts2
- Business2
- City planning2
- Consumer protection2
- Economic development projects2
- Energy2
- Industrialization2
- Infrastructure (Economics)2
- Natural gas2
- Nuclear technology2
- Rural development projects2
- Science education2
- Small business2
- Social policy--Citizen participation2
- Transportation2
- Universities and colleges2
- Agriculture1
- Biodiversity1
- Cities1
- Community development--Environmental aspects1
- Community organization1
- Culture1
- Democracy1
- Diseases1
- Economic policy--citizen participation1
- Education1
- Education--Study and teaching1
- Energy policy1
- Environment1
- Festivals1
- Finance1
- Forced migration1
- Geology1
- Government policy1
- Health--Environmental aspects1
- Indigenous women1
- Industrial accidents1
- Industries and industrial policy1
- Labor unions1
- Laws1
- Literature1
- Local government1
- Management1
- Mass media--Economic aspects1
- Mass media--Political aspects1
- Natural disasters1
- Political participation1
- Politics and government1
- Pollution1
- Protest movements1
- Public works1
- Rural and village development1
- Social movements1
- Social policy1
- Sustainable agriculture1
- Traditional farming1
- Universities and students1
- Work environment1
- Economics48
- Information technology18
- Energy Technology16
- Business10
- Science and technology10
- Industries9
- Consumer protection--Economic aspects7
- Advertising5
- Government policy5
- Banks and banking4
- Energy policy4
- International business enterprises4
- Local government --Economic aspects3
- Economic development2
- Economic policy2
- Economics2
- Education--Study and teaching2
- Energy2
- Engineering2
- Labor unions2
- Mass media--Economic aspects2
- Mines and mineral resources2
- Oil industries2
- Universities and colleges2
- Astronautics1
- Cities1
- City planning1
- Commerce1
- Community development1
- Economic and social development1
- Economic policy--citizen participation1
- Employee rights1
- Employment1
- Environment1
- Finance1
- Fiscal policy1
- Forests and forestry1
- Geology1
- Indigenous peoples1
- Industrialization1
- Infrastructure (Economics)1
- Laws1
- Local government1
- National security1
- Petroleum industry and trade1
- Politics and government1
- Power resources1
- Protest movements1
- Public administration1
- Public safety1
- Rural and village development1
- Rural development projects1
- Small business1
- Sustainable development1
- Terrorism1
- Urban transportation1
- Arts and culture25
- Arts12
- Culture11
- Information technology11
- Science and technology11
- Museum exhibits7
- Artists5
- Libraries3
- Literature3
- Education--Study and teaching2
- Festivals2
- Mass media2
- Mass media--Political aspects2
- Music2
- Nuclear technology2
- Power resources2
- Art fairs1
- Art--Study and teaching1
- Arts--Political aspects1
- Collective memory1
- Economic and social development1
- Education1
- Engineering1
- History1
- Labor unions1
- Mental health1
- Motion pictures1
- Multicultural education1
- Museums1
- Performing arts1
- Photography1
- Politics1
- Politics and government1
- Protest movements1
- Social conditions1
- Social movements1
- Spiritualism1
- Technical assistance1
- Vocational education1
- Human and civil rights24
- Information technology9
- Science and technology9
- Animal welfare5
- Consumer protection5
- Biotechnology3
- Women's rights3
- Energy Technology2
- Freedom of expression2
- Human rights2
- Social policy--Citizen participation2
- Women--Employment2
- Arts1
- Catholic Church1
- Civil rights1
- Collective memory1
- Courts1
- Festivals1
- Forced migration1
- Freedom of the press1
- Gender1
- Genetically modified foods1
- Health--Environmental aspects1
- History1
- Human rights advocacy1
- Indigenous peoples1
- Industrialization1
- Infrastructure (Economics)1
- International cooperation1
- Mines and mineral resources1
- National security1
- Nutrition1
- Prisons1
- Protest movements1
- Social conditions1
- State-sponsored terrorism1
- Students--Political activity1
- Terrorism1
- Universities and colleges1
- Health20
- Science and technology7
- Biotechnology6
- Health6
- Medical technology5
- Diseases3
- Medical care3
- Energy Technology2
- Government policy2
- Health policy2
- Health--Environmental aspects2
- Nutrition2
- Older people2
- Public safety2
- Work environment2
- Consumer protection1
- Education--Study and teaching1
- Energy policy1
- Environmental education1
- Genetically modified foods1
- Health education1
- Health facilities1
- Human rights1
- Immunization1
- Industrial accidents1
- Industrialization1
- Industries and industrial policy1
- International cooperation1
- Mental health1
- Motion pictures1
- Pollution1
- Power resources1
- Public health--Citizenship participation1
- Substance abuse1
- Technical assistance1
- Labor16
- Information technology9
- Labor unions6
- Elections4
- Employment4
- Labor4
- Science and technology4
- Employee rights3
- Technical assistance3
- Energy2
- International business enterprises2
- Work environment2
- Arts1
- Banks and banking1
- Business1
- Energy Technology1
- Health--Environmental aspects1
- Industrial accidents1
- Industrialization1
- Industries1
- Industries and industrial policy1
- Labor and globalization1
- Labor unions--Political activity1
- Laws1
- Management1
- Political campaigns1
- Pollution1
- Power resources1
- Protest movements1
- Public safety1
- Strikes and lockouts1
- Substance abuse1
- Working class1
- Agrarian and rural issues15
- Medical technology5
- Rural development projects5
- Biotechnology4
- Information technology4
- Animal rights3
- Science education3
- Agriculture2
- Agriculture--Handbooks, manuals, etc.2
- Community development2
- Energy2
- Energy Technology2
- Science and technology2
- Biodiversity1
- Consumer protection1
- Economic development projects1
- Education1
- Food industry1
- Genetically modified foods1
- Health--Environmental aspects1
- Indigenous women1
- International cooperation1
- Mass media--Economic aspects1
- Power resources1
- Renewable energy resources1
- Rural and village development1
- Social policy1
- Sustainable agriculture1
- Sustainable development1
- Traditional farming1
- Water resources1
- Gender and sexuality9
- History7
- Urban issues7
- Children and youth5
- Religion5
- Minorities, ethnic and racial groups2
- Sociology1
- Tourism1