One determinant of peace is the role of women in society. Some studies suggest that a young age structure, also known as a “youth bulge” can facilitate conflict. Population growth and age structure are factors amenable to change in a human rights context. We propose that policies which favor voluntary family planning and the education of women can ameliorate the global burden of disease associa...

The article by Potts et al, “The Pill is Mightier than the Sword,” points out that family planning has an important role to play in building peace by increasing women’s empowerment and their agency, ultimately helping peacebuilding efforts. Evidence has demonstrated that family planning programs are cost effective, produce quick results, help women and couples meet their desired fertility level...

There is increasing evidence of indirect effects of hunting on populations. In species with sexually selected infanticide (SSI), hunting may decrease juvenile survival by increasing male turnover. We aimed to evaluate the relative importance of direct and indirect effects of hunting via SSI on the population dynamics of the Scandinavian brown bear (Ursus arctos). We performed prospective and re...

this paper aim to study effect of women's employment on family stability, compare dual-worker family with single-worker family. statistical population of quantitative cross-sectional survey was married in tehran. selected 1736 samples and was analyzed. multi-stage cluster sampling method was used and due to the different economic and social classes of people, selected 50 domains in tehran....

Gupta and Shabbir (2008) have suggested an alternative form of ratio-type estimator for estimating the population mean. In this paper, we introduced new estimators by mixing two, stratified and cluster sampling method. Then we improved these estimators by using auxiliary variables and introducing new estimators. For sampling in infinite populations with a high geographic dispersion, the populat...

we develop a two phase sampling procedure to determine the sample size necessary to estimatethe population mean of a normally distributed random variable and show that the resulting estimator has preassigned variance and is unbiased under a regular condition. we present a necessary and sufficient condition under which the final sample mean is an unbiased estimator for the population mean.