منابع مشابه
The male to female ratio at birth.
The factors that influence the male to female ratio at birth are legion. Males are usually born in excess and stress decreases the ratio while wellbeing and good health tends to increase it. This paper reviews the multitudes of factors that have been implicated as affecting this ratio, from historical times to date.
متن کاملReligion, Literacy, and the Female-to-Male Ratio in India
This paper proposes a new explanation for religious differences in fertility in India by incorporating the issue of gender bias into the debate. It reports the results from an econometric investigation of the factors influencing the sex ratio at birth and among currently living children, by religion and by caste, for a sample of over 10,000 women in India. The investigation paid particular atte...
متن کاملMircoRNAs in thyroid cancer
Thyroid cancer, which is known as the most common type of endocrine cancer, has seen a growing prevalence in the last few years. On the other hand, only a small percentage of them are associated with malignancy and most of them are benign tumors. Therefore, the first step in the proper management of this type of cancer is to distinguish malignant tumors from benign ones, and today, we are tryin...
متن کاملParental periconceptional smoking and male: female ratio of newborn infants.
We assessed whether the smoking habits of parents around the time of conception affects the likelihood of the offspring being male or female. We found that the offspring sex ratio (male to female) was lower when either one or both of the parents smoked more than 20 cigarettes per day compared with couples in which neither of the parents smoked. We found the lowest sex ratio among children whose...
متن کاملHurricane Katrina: Influence on the Male-to-Female Birth Ratio
OBJECTIVE This study was carried out in order to ascertain whether or not Hurricane Katrina and related factors (i.e. the amount of rainfall) influenced the male-to-female birth ratio (M/F). MATERIALS AND METHODS Monthly births by gender for the affected states (Alabama, Florida, Louisiana and Mississippi) for January 2003 to December 2012 were obtained from the Centers for Disease Control an...
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ژورنال
عنوان ژورنال: Endocrine Abstracts
سال: 2015
ISSN: 1479-6848
DOI: 10.1530/endoabs.37.ep878