Agriculture	69
Antennas and waveguides	2
Astronomy	8
Automated equipment	9
Aviation	41
Biology	2
Biotechnology	1
Business	1
Chemistry	27
Climatology	2
Coal	8
Commerce	7
Communications	46
Computer numerical control	1
Computers	32
Construction	80
Corporate governance	2
Cultural studies	13
Earth sciences	30
Economics	9
Electric traction	5
Electrical engineering	1
Electronics	88
Environment	17
Finances	113
Fish farming pisciculture	5
Fishery fishing industry	3
Forestry	2
Gear train	2
General	51
Genetics	1
Geology	1
Glass production	1
Gymnastics	6
Health care	2
High energy physics	6
Hobbies and pastimes	2
Industry	61
Information technology	75
Insurance	1
International Monetary Fund	1
Labor law	4
Law	16
Librarianship	10
Life sciences	111
Marketing	3
Materials science	5
Measuring instruments	7
Mechanic engineering	75
Mechanics	2
Medical	28
Medical appliances	20
Metallurgy	80
Microsoft	25
Municipal planning	5
Natural resourses and wildlife conservation	10
Natural sciences	20
Oil / petroleum	2
Packaging	3
Paleontology	1
Paragliding	1
Politics	1
Power lines	5
Radio	8
Remote sensing	13
Research and development	1
Scientific	1
Social science	4
Soil science	3
Sound recording	2
Statistics	5
Table tennis	1
Technology	93
Textile industry	1
Thermal Energy	1
Transport	143
United Nations	10
Video recording	2
Water resources	5

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