Background and Objectives: Brith sex ratio could be affected by several factors such as stress due to natural disasters like earthquake. This study was performed to determine the sex ratio and the perinatal outcomes after Bam earthquake. Materials and Methods: This case-control study was designed in two sections for the evaluation of earthquake effects on brith sex ratio and the perinatal outc...

A review of the data supports the suggestion of Knox (1974) that the sex ratio and incidence of anencephalics vary together within populations, as they are known to do between populations. There seems some doubts, though, whether Knox was correct in hypothesising that the sex ratio of anencephalics varies with their incidence in relation to the dizygotic twinning rate. The pattern of variation ...

The question of how exposure to dioxins might affect only males and why it affects preferentially male embryos in the Seveso data presented by Mocarelli et al. remains intriguing. This enigma can be explained by the ovopathy concept, which addresses the determination of both the sex and the condition of the progeny. Antiandrogenic properties of dioxin alter the sperm-transit time and mating beh...

The sex ratio of infants born with certain congenital abnormalities diverges widely from unity. There is evidence that these sex ratios vary from place to place and in different races (Gittlesohn and Milham, 1962; Emanuel, 1972). Stocks (1970) has shown that within 25 countries of largely European stock there is a close positive correlation between the divergence of the sex ratio of congenital ...

This paper tries to bring forth the very serious problem of sex selective abortions in India in general and odisha in particular. The very serious threat to the lives of the girl child from the mother’s womb is addressed in this paper as it is the most heinous of al crimes against the female gender. Discrimination against the girl child and the hold of patriarchy is clearly visible in our socie...

background: it has been claimed that by using different washing methods, the sperms can be separated according to size, motility, density, chromosomal content and surface markings and charge. these methods also reduce sperm chromatin deficiencies and screen the sperms before applying in assisted reproduction techniques. objective: this study compared simple density gradient methods and a combin...