There are two distinct models that went into the publication. The first was to measure passive spread of electrical post synaptic potentials (ePSPs). This model has only passive properties, and a current is injected in the "soma" which has all the same properties of the rest of the neurite. 
The second model has a 1000micron axon connected to the 4000micron neurite. The axon has active properties.

Model Parameters changed in the publication

Resistance (gLeak):
0%: 7.3e-5 S
5%: 7.665e-5 S
10%: 8.03e-5 S
15%: 8.39e-5 S
30%: 9.49e-5 S
50%: 1.095e-4 S

Current (IClamp): 
0%: 0.2 nA
5%: 0.21 nA
10%: 0.22 nA
15%: 0.23 nA
30%: 0.26 nA
50%: 0.3 nA

gNa values (in the axon, only AP model): 
0%: 40 mS
5%: 42 mS
10%: 44 mS
15%: 46 mS
30%: 52 mS
50%: 60 mS