Accounting	8
Acoustics	2
Agriculture	190
Animal husbandry	3
Antennas and waveguides	11
Artillery	5
Astronomy	2
Automated equipment	19
Automobiles	1
Aviation	1
Banking	3
Biochemistry	3
Biotechnology	3
Brewery	1
Business	4
Cartography	2
Chemical fibers	2
Chemistry	109
Coal	14
Commerce	6
Communications	40
Computer numerical control	11
Construction	25
Corporate governance	6
Cryptography	2
Cultural studies	2
Demography	4
Drilling	3
Earth sciences	59
Ecology	1
Economics	31
Education	8
Electricity	1
Electronics	93
Environment	111
Finances	103
Fish farming pisciculture	4
Fishery fishing industry	1
Food industry	14
Food service and catering	4
Forestry	24
General	80
Genetics	2
Geology	4
Government, administration and public services	4
Health care	41
Horticulture	1
Hydrology	1
Industry	14
Information technology	93
Insurance	12
International Monetary Fund	12
International trade	1
Labor law	24
Laboratory equipment	13
Law	23
Leather	2
Life sciences	102
Magnetics	1
Marketing	22
Materials science	14
Mathematics	98
Measuring instruments	38
Mechanic engineering	3
Medical	497
Metallurgy	19
Meteorology	14
Microbiology	6
Microsoft	65
Milk production	2
Municipal planning	1
Name of organization	1
Natural sciences	35
Nuclear and fusion power	1
Nuclear physics	3
Oil / petroleum	1
Packaging	6
Patents	5
Pharmacy and pharmacology	20
Politics	15
Psychology	1
Radio	1
Remote sensing	3
Scientific	22
Social science	7
Sociology	1
Statistics	161
Superconductivity	8
Taxes	8
Technology	87
Telegraphy	1
Textile industry	16
Topography	2
Transport	47
United Nations	11
Veterinary medicine	3
Water resources	26
Wind Energy	1
Wood processing	2
Work flow	5