Topic
Public aspects of medicine
146
RA1-1270
146
Arctic medicine. Tropical medicine
145
RC955-962
145
Geology
129
QE1-996.5
128
G
99
Geography. Anthropology. Recreation
99
Geodesy
59
QB275-343
59
Nuclear and particle physics. Atomic energy. Radioactivity
32
QC770-798
32
Ecology
24
QH540-549.5
24
Astrophysics
22
COVID-19
22
QB460-466
22
Egypt
19
Renewable energy sources
18
TJ807-830
18
Biotechnology
15
TP248.13-248.65
15
Q
14
Science
14
Prevalence
11
EISCAT
10
Animal culture
9
Climate change
9
Disasters and engineering
9
SF1-1100
9
TA495
9
Microbiology
8
QR1-502
8
Analytical chemistry
7
Ionosphere
7
Paleontology
7
QD71-142
7
QL1-991
7
Tromsø
7
Zoology
7
Chemical technology
6
Electronics
6
Knowledge
6
Pandemic
6
Permafrost
6
Petroleum refining. Petroleum products
6
Petrology
6
QE420-499
6
TK5101-6720
6
TK7800-8360
6
more ...