Shanghai teachers use a whole-class, "mastery" approach, which involves teaching children of all ability every minute step of a calculation.
The MRS [ 6] consists of two-minute steps of tidal ventilation in pressure-controlled mode, with a fixed driving pressure of 15 cm H2O (above PEEP).
The RM consisted of 2-minute steps of tidal ventilation with fixed ΔPCV = 15 cmH2O and progressive PEEP levels (10-50-30-10 cmH2O), RR = 15, I E = 1 1, and FiO2 = 1.0.
After stabilization of the lung injury model (> 1 hour) a stepwise PEEP trial was performed consisting of 2-minute steps of tidal ventilation (10 30 cmH2O; 30–5 cmH2O).
MRS consisted of two-minute steps of tidal ventilation with pressure-controlled ventilation, fixed driving-pressure = 15 cmH2O, a respiratory-rate of 10 to 15 breaths/minute, an inspiratory:expiratory ratio of 1 1 and stepwise increments in PEEP levels from 10to4545 cmH2O (recruitment-phase).
To evaluate the incidence of complications related to transportation and to the MRS. Forty-three patients with ARDS were transported to CT and submitted to the MRS, which consisted of 2-minute steps of ventilation with a fixed PCV = 15 cmH2O and progressive PEEP levels (10-45-25-10 cmH2O), RR = 10, I E = 1 1, and FiO2 = 1.0.
Briefly, a decremental PEEP trial was performed immediately after the RM by a stepwise reduction of PEEP from 20 cmH2O in one minute-steps of 2 cmH2O until Xrs reached its maximum and started to decrease.
The NAVA level was then increased every 3 minutes in steps of 0.3 cmH2O/μV to a NAVA level of at least 3.0 cmH2O/μV.
We applied 11 different NAVA levels, increasing them every 3 minutes in steps of 0.3 cm H2O/μV from 0 to 3.0 cmH2O/μV.
Titration consisted of starting at a minimal assist level of around 3 cmH2O and then increasing the NAVA level every 3 minutes in steps of 1 cmH2O per arbitrary unit (the amount of microvolts recorded from the EAdi signal).
