increasing of the aging population in most of the developed countries should be more attention to the health issues of this aged group. in iran, the ageing program has been launched and some institutes or organizations have been in charge of this program. the coordination of health policies and activities in elderly care programs and ageing networks could be helped to improve of elderly life sp...

BACKGROUND For accurate estimation of the future burden of communicable diseases, the dynamics of the population at risk - namely population growth and population ageing - need to be taken into account. Accurate burden estimates are necessary for informing policy-makers regarding the planning of vaccination and other control, intervention, and prevention measures. Our aim was to qualitatively e...

Traditional theories posit a line of causality running from technological change into mortality decline. I argue that an important line runs in the opposite direction: longer life spans contribute to increased knowledge production. The productivity of scientists declines only gradually with age, which implies that a reduction in adult mortality will stimulate knowledge production by leaving mor...

Using demographic multi-state, cohort-component methods, we produce projections for 120 countries (covering 93% of the world population in 2005) by five-year age groups, sex, and four levels of educational attainment for the years 2005-2050. Taking into account differentials in fertility and mortality by education level, we present the first systematic global educational attainment projections ...

the present article studies the quds city and the holy status it has gained in the history. it also reviews its geographical and historical characteristics in time especially the historical demography of this city and its neighbors in the 16th century. this century starts with the occupation of the city by crusaders and thus the decrement of population due to the death of 70 thousand people of ...