Accounting	5
Agriculture	146
Animal husbandry	2
Antennas and waveguides	2
Art	1
Astronomy	10
Canada	1
Chemistry	40
Coal	1
Commerce	3
Communications	5
Construction	8
Cultural studies	5
Demography	1
Earth sciences	27
Economics	43
Education	9
Electric traction	1
Electrical engineering	8
Electronics	32
Energy industry	3
Environment	47
Finances	28
Food industry	1
Forestry	1
General	49
Government, administration and public services	1
Health care	15
Hobbies and pastimes	1
Human rights activism	8
Industry	94
Information technology	16
Insurance	42
International trade	3
Labor law	32
Law	76
Life sciences	18
Marketing	5
Materials science	54
Mathematics	3
Mechanic engineering	390
Medical	56
Metallurgy	39
Microsoft	12
Natural resourses and wildlife conservation	34
Natural sciences	113
Nuclear and fusion power	1
Nuclear physics	1
Packaging	33
Patents	2
Pharmacy and pharmacology	16
Politics	1
Procedural law	6
Social science	58
Statistics	23
Taxes	1
Technology	28
Textile industry	3
Trade unions	1
Transport	72
Waste management	1

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