Dutch researchers at the University Hospital in Maastricht used vibrations and acoustics to stimulate “25 fetuses between 37 and 40 weeks of gestation ” and“ observed their reactions with an ultrasound scanner. ” After the initial tests were performed, the stimulation was repeated at 10 - minute and 24 - hour intervals.
पण काही मालक जेवणाच्या सुटीदरम्यान मिटींग्स ठेवतात ज्यामुळे कामगारांना जराही विसावा मिळत नाही.