Earth & Environmental Sciences
maize
100%
crop
86%
bioenergy
85%
ethanol
81%
economics
79%
climate
77%
effect
72%
policy
68%
biofuel
62%
tropical forest
59%
analysis
59%
confluence
57%
land
53%
river
51%
watershed
50%
price
48%
modeling
47%
drought
47%
land use
46%
soil
46%
climate change
45%
flow structure
44%
cost
43%
economy
43%
tourism
43%
participation
42%
tropical cyclone
42%
water
40%
program
40%
decision
39%
land use change
38%
river basin
38%
rate
37%
market
37%
biomass
36%
simulation
35%
food
35%
nitrogen
35%
energy
35%
habitat
35%
greenhouse gas
35%
income
33%
loss
33%
primate
33%
biosphere
31%
household
31%
vegetation
30%
health
29%
public
28%
seedling
28%
sugar
28%
forecast
28%
herbivory
28%
photosynthesis
28%
firm
27%
services
27%
family
27%
trend
27%
demand
26%
city
26%
biofuel production
26%
pine
24%
econometrics
24%
project
24%
world
24%
politics
24%
travel
23%
montane forest
23%
sustainability
23%
product
23%
water resource
23%
land surface
23%
water use
23%
evapotranspiration
23%
greenhouse gas emissions
23%
need
23%
land cover
22%
streamflow
22%
temperature
22%
allocation
22%
Social Sciences
politics
70%
economics
68%
learning
68%
immigrant
68%
evidence
67%
history
61%
time
61%
Basque
59%
student
58%
discourse
57%
experience
56%
education
53%
narrative
53%
teacher
52%
Tourism
49%
linguistics
46%
participation
44%
Law
43%
classroom
41%
literature
41%
interaction
40%
Brazil
40%
Group
39%
grammar
38%
food
36%
event
35%
Teaching
34%
governance
33%
market
33%
citizen
33%
India
33%
gender
33%
resources
32%
worker
32%
literacy
32%
globalization
32%
language acquisition
32%
interpretation
31%
news
31%
travel
31%
migration
30%
corruption
30%
Sports
30%
China
30%
democracy
29%
experiment
29%
popular culture
29%
health
28%
migrant
28%
interview
28%
water
28%
costs
28%
immigration
28%
management
26%
trend
26%
tourist
26%
animal
26%
present
26%
demand
26%
regime
25%
income
25%
multilingualism
25%
agglomeration area
25%
energy
24%
cultural heritage
24%
land use
24%
industry
24%
France
24%
human rights
24%
dialect
23%
acoustics
23%
violence
23%
art
22%
agriculture
22%
semantics
22%
speaking
22%
elite
22%
minority
22%
biofuel
21%
equilibrium model
21%
innovation
21%
employee
21%
Spain
21%
instruction
20%
cold war
20%
firm
20%
scenario
20%
examination
20%
Mexico
20%
resident
20%