The author outlines the policy should not be changed for the reasons of the rebound of fertility ratio after the regulation and the ratio is not clear.
Sixthly, the ways to deal with the issues of nowadays population policy of Baotou, and population present are mainly to develop the economy rapidly, to maintain the lower birth rate, to optimize the sex structures, to enhance the population quality, to perfect the social security system and to enlarge the fields of obtaining employment, and so on.
Because of the extreme importance of the government policy in the process of theChiners women's birth rate level , the author established the model of policy-permitted birth ratewhich was used to anticipate the future women's birth rate in Jiangsu and have a better understanding of the present FP policy's influence on population development .
Data are presented which indicate that, as more of a group's women perform tasks which are incompatible with child-rearing, the lower the fertility rate of that group's women.
Meu1-mediated resistance resulted in significantly decreased fecundity with a ten-fold decrease in the net fertility rate (4.5 and 45.7 progeny per aphid on resistant and susceptible tomato, respectively).
By numerical analysis, the fertility decreases with the per capita capital and per capita consumption increasing and increases with the per capita capital and per capita consumption decreasing on the economic growth path are obtained.
However, recent studies have documented that the practice of this system has led to dramatic decreases in soil fertility and forest environment as well as in productivity.
Despite the continuous decrease in singleton preterm birth rate throughout the observed periods, the increase in stillbirth rate and early neonatal mortality rate during the war might have been caused by the war.
- When applied to a standard population of 100,000 with a birth rate of 16 per 1000 per year, 96 severely subnormal children aged 0-15 would be expected.
One population change noted which has an effect on the suicide attempt rate is the marked increase in-the high risk age group, persons 15-24, reflecting the rising birth rate following World War II.