Accounting	8
Acoustics	1
Agriculture	170
Antennas and waveguides	7
Astronomy	29
Automated equipment	16
Biotechnology	1
Chemistry	93
Coal	9
Commerce	6
Communications	30
Computer numerical control	11
Construction	34
Corporate governance	7
Criminal law	2
Cultural studies	9
Customs	2
Demography	2
Earth sciences	61
Ecology	1
Economics	45
Education	17
Electronics	81
Environment	57
Finances	108
Fish farming pisciculture	3
Food industry	6
Food service and catering	1
Forestry	7
General	92
Government, administration and public services	2
Health care	38
Immigration and citizenship	1
Industry	20
Information technology	86
Insurance	12
International trade	2
Labor law	23
Laboratory equipment	1
Law	37
Leather	2
Life sciences	62
Magnetics	2
Marketing	31
Materials science	14
Mathematics	106
Measuring instruments	38
Mechanic engineering	5
Medical	363
Metallurgy	60
Microsoft	57
Municipal planning	5
Name of organization	4
Natural resourses and wildlife conservation	1
Natural sciences	34
Nuclear and fusion power	1
Nuclear physics	3
Oil / petroleum	1
Packaging	4
Patents	1
Pharmacy and pharmacology	18
Physical sciences	7
Politics	5
Scientific	26
Social science	5
Sociology	1
Statistics	143
Taxes	24
Technology	56
Telegraphy	1
Textile industry	16
Transport	46
United Nations	1
Water resources	23
Wind Energy	2
Wood processing	1
Work flow	6