Metabolic flux and concentration estimation based on stable isotope labeling
influx_s and influx_i are programs designed for flux and metabolite concentration estimation based on labeling data using stable isotopes (essentially ¹³C but combination of multiple isotopes like ²H, ¹³C, ¹⁵N, … is also possible). influx_s works with stationary data while the influx_i is able to simulate instationary labeling (hence the _i in the name). The both work in metabolically stationary context. The whole project is referred as influx_si. Note also that the term influx_si is used in contexts where influx_s and influx_i are interchangeable.
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