The unintended pregnancy rate in the United States remains high, and there are large race and education differences in unintended pregnancy and fertility. These differences make it important to study race and education differences in contraceptive behavior. Using nationally representative data...

A set of simulations were run to estimate the impact on gross margins due to improvements in cattle breeding efficiency and other management factors in extensive pastoral systems in Western Australia. The output from the simulations was integrated into a statistical model of gross margin as a...

Between May and October 1990, fecundity, egg size and condition factor of Chrysichthys nigrodigitatus (LacΘpΦde) in the Cross River, Nigeria, were studied. The fecundity (F) of this population varied from 3 046 eggs (total length, L=28.5 cm) to 28 086 eggs (L=64 cm). A mean relative fecundity...

Today?s adolescents and youth face substantial physical, social, legal, and economic barriers to meeting their SRH potential. Key factors underlying these issues are a lack of adolescent SRH (ASRH) policies and access to accessible, affordable, and appropriate health services. The impact that...

Эта статья представляет собой анализ существующих подходов к методам и критериям оценки уровня экономической безопасности в регионе. Авторы исследуют...