The purpose of this study was to investigate the effects of three basic cyclic rhythms called biorhythms including a 23day physical cycle, a 28-day emotional cycle and a 33-day intellectual cycle on the incidence of accidents in Agra casting manufacturing units. For this purpose a sample of 462 accidents were randomly selected for the analysis. The statistical methods chi-square of significance...

Four studies conducted in the light metal, electrotechnical and printing industries are described. The purpose was to determine the applicability of the systems approach to occupational accidents. The data consisted of 291 accidents and 701 controls. The stable characteristics of the workers or the environments were not good predictors of accidents. The clearest differences between the accident...