english: And in the investigations that followed those disasters, poor judgment as a result of extended shift work and loss of vigilance and tiredness was attributed to a big chunk of those disasters.
non_english: Vo vyšetrovaniach sa tiež zistilo, že zlý úsudok v dôsledku predlžovanej práce na zmeny, strata bdelosti a únava, boli z veľkej časti príčinou týchto nehôd.