Physics & Astronomy
vortices
100%
domain wall
48%
strings
42%
Bose-Einstein condensates
39%
gauge theory
33%
instantons
32%
symmetry
26%
solitary waves
25%
monopoles
19%
color
19%
quantum chromodynamics
18%
fermions
17%
scalars
16%
quarks
14%
supersymmetry
14%
broken symmetry
13%
vacuum
13%
Yang-Mills theory
13%
neutron stars
12%
condensation
10%
condensates
10%
neutrons
10%
boundary conditions
10%
magnetic flux
9%
ghosts
8%
tachyons
8%
energy
8%
configurations
8%
rings
7%
bosons
7%
anomalies
7%
interactions
7%
ground state
7%
baryons
6%
magnetic fields
6%
quantum mechanics
6%
defects
6%
geometry
5%
partitions
5%
collisions
5%
Josephson junctions
5%
curvature
5%
integers
5%
matrices
5%
expansion
5%
Agriculture & Biology
Dermaptera
23%
genitalia
19%
Drosophila
10%
male genitalia
10%
penis
9%
Bacillariophyceae
9%
Insecta
9%
Dugesia
8%
Japan
8%
Oncholaimida
8%
caves
7%
gender
7%
Drosophilidae
7%
female genitalia
7%
copulation
7%
Achnanthes
7%
Euborellia
7%
new species
5%
Anguilla australis
5%
vagina
5%
Anisolabididae
5%
Labiduridae
5%
eel
5%
animal injuries
5%
Business & Economics
Japan
35%
Labour Market
7%
Workers
7%
Japanese Firms
6%
Japanese Economy
6%
Wages
6%
Factors
5%
Transaction Costs
5%
United States of America
5%