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- Science and Technology277
- Information technology107
- Science and technology91
- Energy Technology38
- Government policy19
- Universities and colleges16
- Biotechnology14
- Science education14
- Education--Study and teaching13
- Power resources13
- Protest movements12
- Environmental education10
- Geology10
- Medical technology10
- Political campaigns10
- Public administration10
- Energy9
- Energy policy9
- Education8
- Engineering8
- Public safety8
- Technical assistance8
- Universities and students8
- Business7
- Community development7
- Consumer protection--Economic aspects7
- Industries7
- Laws7
- Mass media--Political aspects7
- Culture6
- Elections6
- Environment6
- Local government6
- Advertising5
- Animal welfare5
- Consumer protection5
- Health5
- Hydrocarbons5
- Natural gas5
- Arts4
- Political participation4
- Renewable energy resources4
- Social justice4
- Transportation4
- Animal rights3
- Banks and banking3
- Biodiversity3
- City planning3
- Community organization3
- Diseases3
- Economic and social development3
- Energy conservation3
- Environmental protection3
- International business enterprises3
- Labor3
- Labor unions3
- Libraries3
- Local government --Economic aspects3
- Medical care3
- Nuclear technology3
- Politics3
- Politics and government3
- Rural development projects3
- Sustainable development3
- Women's rights3
- Agriculture2
- Agriculture--Handbooks, manuals, etc.2
- Astronautics2
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- Cities2
- Economic development2
- Economic development projects2
- Economic policy2
- Economics2
- Education, Higher2
- Educational law and legislation2
- Employment2
- Family2
- Foreign relations2
- Forests and forestry2
- Freedom of expression2
- Gender2
- Health policy2
- Health--Environmental aspects2
- History2
- Human rights2
- Indigenous women2
- Industrialization2
- Infrastructure (Economics)2
- Latin America--Relations--United States; United States--Relations--Latin America2
- Mass media--Economic aspects2
- Music2
- Natural disasters2
- Nutrition2
- Oil industries2
- Older people2
- Petroleum industry and trade2
- Political parties2
- Popular education2
- Social conditions2
- Politics and government80
- Information technology43
- Science and technology20
- Government policy19
- Protest movements12
- Political campaigns10
- Public administration10
- Energy Technology7
- Laws7
- Mass media--Political aspects7
- Elections6
- Local government6
- Public safety6
- Universities and students5
- Energy policy4
- Political participation4
- Science education4
- Transportation4
- Community organization3
- Energy3
- Hydrocarbons3
- Industries3
- Labor3
- Nuclear technology3
- Politics3
- Politics and government3
- Universities and colleges3
- Employment2
- Engineering2
- Foreign relations2
- Latin America--Relations--United States; United States--Relations--Latin America2
- Local government --Economic aspects2
- Political parties2
- Power resources2
- Social justice2
- Women's rights2
- Administrative regulations1
- Advertising--Tourism1
- Arts--Political aspects1
- Biotechnology1
- Catholic Church1
- Child welfare1
- City planning1
- Community development1
- Consumer protection1
- Consumer protection--Economic aspects1
- 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
- Infrastructure (Economics)1
- International business enterprises1
- International cooperation1
- Labor and globalization1
- Labor unions1
- Literature1
- Mass media1
- Mass media--Economic aspects1
- Medical care1
- Medical technology1
- Military Technology1
- Natural gas1
- Oil industries1
- Power resources--Environmental aspects1
- Presidents1
- Public works1
- Social movements1
- Strikes and lockouts1
- Students--Political activity1
- Sustainable development1
- Technical assistance1
- Tourist maps1
- Urban transportation1
- Women--Employment1
- Environment and ecology53
- Energy Technology21
- Science and technology14
- Environmental education10
- Energy policy9
- Energy6
- Environment6
- Information technology6
- Geology5
- Natural gas5
- Power resources5
- Government policy4
- Renewable energy resources4
- Biodiversity3
- Energy conservation3
- Environmental protection3
- Hydrocarbons3
- Local government --Economic aspects3
- Sustainable development3
- Biotechnology2
- Community development2
- Community organization2
- Forests and forestry2
- Industries2
- Natural disasters2
- Petroleum industry and trade2
- Protest movements2
- Technical assistance2
- 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
- Natural resources1
- Nature conservation1
- Nuclear technology1
- Oil industries1
- Older people1
- Political participation1
- Pollution1
- Power resources--Environmental aspects1
- Public safety1
- Rural development projects1
- Social justice1
- Traditional farming1
- Universities and colleges1
- Urban policy--Environmental aspects1
- Urban transportation1
- Vocational education1
- Water resources1
- Work environment1
- Education49
- Science and technology27
- Universities and colleges16
- Information technology15
- Science education14
- Education--Study and teaching13
- Education8
- Universities and students8
- Government policy5
- Engineering4
- Animal rights3
- Medical technology3
- Protest movements3
- Biotechnology2
- Culture2
- Education, Higher2
- Educational law and legislation2
- Libraries2
- Music2
- Popular education2
- Transportation2
- Vocational education2
- Adult education1
- Catholic Church1
- City planning1
- Community development1
- Community development--Environmental aspects1
- Conservation of natural resources1
- Economic development projects1
- Economics1
- Education and state1
- Educational system1
- Energy1
- Energy Technology1
- Environmental education1
- Environmental protection1
- Indigenous women1
- Industrialization1
- Mass media1
- Mass media--Political aspects1
- Mental health1
- Motion pictures1
- Multicultural education1
- Natural gas1
- Petroleum industry and trade1
- Photography1
- Power resources1
- Rural development projects1
- Social conditions1
- Students--Political activity1
- Technical assistance1
- Women's rights1
- Women--Education1
- Socioeconomic conditions and development46
- Information technology16
- Power resources13
- Science and technology13
- Energy Technology11
- Technical assistance8
- Community development7
- Hydrocarbons5
- Social justice4
- Economic and social development3
- Engineering3
- Public safety3
- Business2
- City planning2
- Consumer protection2
- Economic development projects2
- Energy2
- Industrialization2
- Infrastructure (Economics)2
- Natural gas2
- Nuclear technology2
- Renewable energy resources2
- Rural development projects2
- Science education2
- Social conditions2
- Social policy--Citizen participation2
- Sustainable development2
- Transportation2
- Universities and colleges2
- Agriculture1
- Arts1
- 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
- Geology1
- Government policy1
- Health--Environmental aspects1
- Indigenous women1
- Industrial accidents1
- Industries and industrial policy1
- 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
- Small business1
- Social movements1
- Traditional farming1
- Universities and students1
- Work environment1
- Economics41
- Information technology17
- Energy Technology14
- Science and technology8
- Business7
- Consumer protection--Economic aspects7
- Industries7
- Advertising5
- Government policy5
- Energy policy4
- Banks and banking3
- International business enterprises3
- Local government --Economic aspects3
- Economic development2
- Economic policy2
- Economics2
- Engineering2
- Mass media--Economic aspects2
- Oil industries2
- Astronautics1
- Cities1
- City planning1
- Commerce1
- Community development1
- Economic and social development1
- Economic policy--citizen participation1
- Education--Study and teaching1
- Energy1
- Environment1
- Finance1
- Fiscal policy1
- Forests and forestry1
- Geology1
- Labor unions1
- Laws1
- Local government1
- Mines and mineral resources1
- Petroleum industry and trade1
- Politics and government1
- Power resources1
- Protest movements1
- Public administration1
- Public safety1
- Rural and village development1
- Rural development projects1
- Small business1
- Universities and colleges1
- Urban transportation1
- Health18
- Biotechnology6
- Science and technology6
- Health5
- Medical technology4
- 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
- Industrial accidents1
- Industrialization1
- Industries and industrial policy1
- International cooperation1
- Mental health1
- Motion pictures1
- Pollution1
- Power resources1
- Substance abuse1
- Technical assistance1
- Human and civil rights18
- Information technology8
- Science and technology7
- Animal welfare5
- Consumer protection5
- Biotechnology3
- Women's rights3
- Freedom of expression2
- Human rights2
- Social policy--Citizen participation2
- Women--Employment2
- Catholic Church1
- Civil rights1
- Freedom of the press1
- Gender1
- Genetically modified foods1
- Health--Environmental aspects1
- History1
- International cooperation1
- Nutrition1
- Protest movements1
- Students--Political activity1
- Universities and colleges1
- Arts and culture15
- Information technology8
- Culture6
- Arts4
- Science and technology4
- Libraries3
- Education--Study and teaching2
- Music2
- Nuclear technology2
- Power resources2
- Art--Study and teaching1
- Artists1
- Arts--Political aspects1
- Economic and social development1
- Education1
- Engineering1
- Festivals1
- Literature1
- Mass media--Political aspects1
- Mental health1
- Motion pictures1
- Multicultural education1
- Museum exhibits1
- Museums1
- Performing arts1
- Photography1
- Politics1
- Politics and government1
- Protest movements1
- Social conditions1
- Social movements1
- Vocational education1
- Agrarian and rural issues12
- Medical technology5
- Biotechnology4
- Animal rights3
- Information technology3
- Rural development projects3
- Science education3
- Agriculture2
- Agriculture--Handbooks, manuals, etc.2
- Community development2
- Biodiversity1
- Consumer protection1
- Economic development projects1
- Education1
- Energy Technology1
- 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
- Science and technology1
- Traditional farming1
- Labor11
- Information technology6
- Elections4
- Labor3
- Labor unions3
- Science and technology3
- Employment2
- Technical assistance2
- Work environment2
- Employee rights1
- Energy1
- Energy Technology1
- Health--Environmental aspects1
- Industrial accidents1
- Industrialization1
- Industries and industrial policy1
- International business enterprises1
- 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
- Gender and sexuality8
- Urban issues6
- Children and youth5
- History5
- Religion4
- Minorities, ethnic and racial groups1
- Sociology1
- Tourism1