法学 >>> 人口学 >>> 人口学原理 人口经济学 人口社会学 人口学说史 人口史 人口地理学 人口生态学 区域人口学 人口系统工程 人口预测学 人口规划学 人口政策学 计划生育学 人口统计学 人口学其他学科
搜索结果: 1-9 共查到人口学 developed countries相关记录9条 . 查询时间(0.078 秒)
Our aim is three-fold: (1) to describe the transitions to adulthood both historically and cross-nationally; (2) to explain the transition to adulthood patterns and their underlying sources of variabil...
While a number of studies have examined gender preferences for children by studying behavioral measures, such as skewed sex ratios, sex imbalance in infant mortality, and sibling size/order; attitudin...
Studies of fertility trends and determinants in developed countries are high on demographers research agenda. The interest in this subject is probably, to a large extent, motivated by a notion abou...
Context: Differences among developed countries in teenagers' patterns of sexual and reproductive behavior may partly reflect differences in the extent of disadvantage. However, to date, this potential...
Context: Sexually transmitted diseases (STDs) are responsible for a variety of health problems, and can have especially serious consequences for adolescents and young adults. An international comparis...
Context: Adolescent pregnancy occurs in all societies, but the level of teenage pregnancy and childbearing varies from country to country. A cross-country analysis of birth and abortion measures is va...
We test the effects of early life exposure to disease on later health by looking for differences in late-life mortality in cohorts born around the 1918-1919 flu pandemic using data from the Human Mort...
Major changes in childbearing patterns are continuously taking place in the majority of low-fertility populations with postponement being virtually universal. Almost everywhere the two-child family be...
Levels and trends of various facets concerning first births are continuously changing. The evidence confirms that the postponement of first births is an ongoing and persisting process which started in...

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...