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Keyphrases
Vostok Ice Core
100%
Ice Core
100%
Vostok
80%
Molecular Techniques
60%
Nitrifier
40%
Trace Gases
40%
N2O Production
40%
Termination I
40%
Molecular Probe
20%
Underlying Assumptions
20%
Incubation
20%
Isotopically Labeled
20%
In Situ
20%
Storage Period
20%
Metabolic Rate
20%
Spiked Sample
20%
Penultimate Glacial
20%
Psychrophiles
20%
Isotopic Composition
20%
Anomalous Behavior
20%
Ice Sheet
20%
Model Ice
20%
Glacial Terminations
20%
Physiological Assay
20%
Limit of Detection
20%
Labeled Substrates
20%
Elemental Composition
20%
Enrichment Culture
20%
Refrozen
20%
Glacial Ice
20%
Dome
20%
Nitrogen Species
20%
Gas Species
20%
Nitrosomonas
20%
Nitrifiers
20%
Psychrotolerant
20%
Cell Concentration
20%
Microbiological Techniques
20%
Termination II
20%
Temperature Dependence
20%
Long-term Storage
20%
Living Culture
20%
Decontamination Process
20%
Nitrous Oxide, N2O
20%
Ice Core Record
20%
Earth and Planetary Sciences
Nitrous Oxide
100%
Ice Core
100%
Trace Gas
22%
Nitrifying Bacterium
22%
Protective Atmosphere
22%
Nitrogen Dioxide
11%
Isotopic Composition
11%
Ice Sheet
11%
Pilot Project
11%
Methane
11%
GRIP
11%
Decontamination
11%
Chemical Element
11%
Nitrogen
11%
Biochemistry, Genetics and Molecular Biology
Nitrous Oxide
100%
Nitrifying Bacterium
22%
Nitrifyer
22%
Enrichment Culture
11%
Temperature Dependence
11%
Metabolic Rate
11%
Molecular Probe
11%
Reconstruction
11%
Nitrosomonas
11%