دانلود گزارش کارورزی و کار آموزی

چکیده : 

Many studies have investigated how different variables influence the reproductive success

(RS) in the populations of natural birth control. Here, we tested hypotheses about positive

relationship between wealth, height and several measures of RS in an indigenous,

traditional society from West Papua. The study was conducted among the Yali tribe in a

few small, isolated mountain villages. In this tribe, a man’s wealth is measured by the

number of pigs he possesses. We found that wealth was related to fertility and number of

living children, but not to child mortality in both men and women. Additionally, child

mortality increased with the number of children in a family. Finally, we did not observe

any relationship between height and reproductive success measures or wealth. We

provide several possible explanations of our results and also put forward hypothetical

background for further studies of indigenous populations