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...

Implications for sports performance and athletic injury occurrence have been forcefully insinuated by proponents of a biorhythm theory based on date of birth. The theory postulates that variations in human abilities are governed by three consistently recurring cycles of 23, 28 and 33 day lengths. This study assessed the validity of biorhythms by analysing best performances in 610 top ranked Eur...

Purpose: The purpose of this study was to design a biorhythm management model for Iranian public school principals with a fuzzy Delphi approach. Methodology: The design of the present study was qualitative with fuzzy Delphi method. Statistical population, professors of organizational behavior management in universities of Mazandaran province and senior managers of education departments in citi...

Light is an important abiotic factor that has been associated with fish biology and behaviour. Most fish depends on their vision system to perform activities such as foraging Meager & Luchiari et al. [1,2] breeding. Particularly, biorhythms have been related to feeding time, either in nature or aquaculture as well as under restricted feeding conditions [3]. In recent years, artificial light has...

Biorhythms longer than the circadian that influence reactions of people and characterizes some diseases have not received much medical attention. The lay press describes cycles of 23, 28 and 33 days said to regulate moods, intellectual ability and efficiency, respectively. Whether or not three overlapping cycles actually regulate three different vague reactions may be questioned. Of interest, h...