Before starting the change-over procedure form HFO (up to 120 °C for the most viscous) to MGO (room temperature).
For any role swap or shift change to work effectively an effective change-over procedure (e.g., role shadowing for a specific time period) is needed to transfer situational awareness and overall response performance.
When a ship is going to pass through an emission control area, it has to start a fuel change-over procedure, in time and in such a way that the engine will be burning MGO at the inlet of the area.
In particular we analyzed three different fuel change-over procedures, considering for each of them the ecological impact of vessel traffic on the port area.
"People change over time.
For 3 and 4-letter words the statistical test did not reveal any additional change over the whole procedure either (immediately after SLO training – three months later: p = 1.0: before – three months later: p = 0.456).
But so-called "work rules" -- involving the amount of input workers have over changes in procedure -- gummed up the deal, as did safety concerns over tunnel lighting, track clearing and track signage, among other issues.
But other issues, which included the length of the workday and the amount of input workers have over changes in procedure, thwarted a deal.
By using the relative muscle strength during testing periods of 5 years, we partially address the potential systematic change in testing procedure over the years.
To avoid bias due to change of testing procedure over time, we categorised the cohort into five subgroups based on the period of conscription (1970 1973, 1974 1977, 1979 1984, 1986–1990, 1990 1994) and for each subcohort calculated the relative muscle strength.
This provides an opportunity for guardians who have concerns regarding future use to refuse to permit their child to participate at the onset of a longitudinal study or to dissent to continued participation as data collection procedures change over time.
