A study by biological anthropologists at University of Kent has revealed that contemporary, British women who believed they had a longer time to live, were more likely to give birth to a son than women who thought that they would die earlier. According to Dr Sarah Johns, who led the research, this may be because it requires more effort to be pregnant with, give birth to, and raise a son to adulthood.
The study, which is published today in the journal Biology Letters, suggests that the sex ratio even in a relatively affluent, Western setting can be influenced by how a woman views her future health and environment. Earlier studies have shown that poorly nourished mothers were more likely to give birth to girls, but this was a link that has only been established in developing countries.
The findings are a result of a survey of British women who had recently become mothers. More 600 women in Gloucestershire were asked to what age they expected to live. The results indicate that people’s perception of their future wellbeing influences the proportion of sexes in the population.
Karen Baxter | alfa
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Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
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Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
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