SUBJECT
Nutrition
52
Power resources
47
Technology
42
Nutrition policy
39
Technology transfer
39
Economic aspects
33
Congresses
31
Technological innovations
31
Water-supply
29
Management
28
Environmental aspects
27
Environmental protection
24
Water resources development
24
Research, Industrial
22
Nutrition surveys
19
Energy policy
18
Mines and mineral resources
18
Environmental policy
17
International cooperation
17
Renewable energy sources
17
Social aspects
17
Energy conservation
16
Petroleum
15
Research
15
Technology and state
15
Energy consumption
14
Engineering
14
Linear programming
13
Pollution
13
Environmental impact analysis
12
Flood control
12
Food supply
12
Water
12
Water supply
12
Diet
11
Government policy
11
Mathematical models
11
Operations research
11
Quality control
11
Refuse and refuse disposal
11
Sanitation
11
Biotechnology
10
Costs
10
Environmental auditing
10
Food
10
History
10
International business enterprises
10
Patents
10
Production management
10
Developing countries
9
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