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. 2014 Mar 20;11:13. doi: 10.1186/1742-4682-11-13

Table 2.

Effects of parameter constraints on optimized piecewise constant procedures for equilibration of human oocytes with EG

Procedure Step Non-permeating solute, M 1 (Osm/kg) EG, M 2 (Osm/kg) Time, t (min) Toxicity ( J α )
Constraints:
0 ≤M1≤ 24
0 ≤M2≤ 24
t≥ 0
 
Addition
1
0
1.4
20
130
 
2
0
2.4
16
 
3
0
24
0.094
Removal
1
1.8
0
3.6
22
 
2
0.66
0
15
Constraints:
0 ≤M1≤ 24
0 ≤M2≤ 24
t≥ 1
 
Addition
1
0
1.3
19
240
 
2
0
2.4
16
 
3
0
17
1.0
Removal
1
2.0
0
3.6
25
 
2
0.65
0
15
Constraints:
0 ≤M1≤ 24
0 ≤M2≤ 16
t≥ 1
 
Addition
1
0
1.4
20
250
 
2
0
2.5
16
 
3
1.2
16
1.0
Removal
1
1.8
0
3.5
22
 
2
0.68
0
13
Constraints:
0.05 ≤M1≤ 24
0 ≤M2≤ 16
t≥ 1
 
Addition*
1
0.050
1.4
24
 
 
2
0.050
2.4
20
280
 
3
1.2
16
1.0
 
Removal*
1
1.8
0
3.6
23
  2 0.66 0 14  

The goal state for EG addition was sf/wf = 53.7, which is equivalent to an intracellular concentration of 8.5 mol/L, or 16 Osm/kg.

*These procedures are illustrated in Figure 5.