Earth & Environmental Sciences
lacustrine deposit
66%
nitrate
51%
sampling
39%
probe
38%
ammonia
37%
organic carbon
36%
active population
36%
sediment
33%
biological method
30%
nitrifying bacterium
30%
RNA
24%
targeting
23%
manganese
21%
diatom
20%
algal bloom
20%
water temperature
20%
surface temperature
19%
water column
19%
sulfate
16%
surface water
15%
iron
15%
oxygen
15%
bacterium
14%
in situ
14%
indicator
13%
chemical
11%
temperature
8%
distribution
8%
Medicine & Life Sciences
Lakes
88%
Nitrates
77%
Ammonia
53%
Carbon
46%
manganese sulfate
45%
Diatoms
36%
Temperature
33%
Bacteria
31%
Water
31%
Ribosomes
24%
Oligonucleotides
24%
Iron
19%
Oxygen
16%
RNA
16%
Databases
14%
Growth
11%
Population
9%
Agriculture & Biology
Lake Michigan
100%
sediments
65%
seasonal variation
60%
ribosomal RNA
50%
nitrates
25%
organic carbon
21%
autotrophic bacteria
16%
surface water temperature
16%
nitrifying bacteria
15%
denitrifying bacteria
14%
algal blooms
12%
sampling
10%
oligonucleotides
10%
manganese
9%
ribosomes
9%
sulfates
8%
iron
7%
oxygen
7%
RNA
6%
microorganisms
6%