法学 >>> 政治学 法学 社会学 人口学 民族学 劳动科学 北京人口
搜索结果: 1-9 共查到法学 C/P ratios相关记录9条 . 查询时间(0.048 秒)
Background: Support ratios and dependency ratios are widely used as indicators for measuring the effects of population ageing on economic development. Both of these indicators use fixed age limits to ...
Background: This study tests the recently proposed hypothesis that the contextual sex ratio at sexual maturity is related to longevity. Previous empirical research in the United States has shown that ...
Background: This study tests the recently proposed hypothesis that the contextual sex ratio at sexual maturity is related to longevity. Previous empirical research in the United States has shown that ...
Background: The adaptive sex ratio adjustment hypothesis suggests that when mothers are in poor conditions the sex ratio of their offspring will be biased towards females. Major famines provide opport...
There is much speculation regarding the contribution of China’s changing demography to the spread of HIV/AIDS. We employ a bio-behavioral macrosimulation model of the heterosexual spread of HIV/AIDS t...
Sex ratios at birth in populations of Eastern and Southern Africa.
The properties of three different gruel samples made from cooked rice were studied. The gruel samples were cooked with various ratios of water to rice and preserved under different conditions at room ...
A general algorithm for the decomposition of differences between two values of an aggregate demographic measure in respect to age and other dimensions is proposed. It assumes that the aggregate measur...
Sex ratios, i.e., relative numbers of men and women, can affect marriage prospects, labor force participation, and other social and economic variables. But the observed association between sex ratios ...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...