题目 Describe briefly the theory of the demographic transition. At what stage in this tran siti on do most develop ing coun tries seem to be? Expla in your an swer. 人口过渡理论: 第一阶段:在实现现代化之前,高出生率和几乎齐平的高死亡率两者共同作用的结 果是若干个世纪以来这些国家的人口保持...
With falling fertility levels during late 1990s a declining trend in the growth rate has set in the demographic transition stage. With a current annual ... T Ahmed 被引量: 1发表: 2001年 Impact of Demographic Transition on Economic Growth of Pakistan The global process of demographic transition...
The demographic transition and spatial mobility are 2 aspects of African demographic patterns that have a negative impact on economic development. It is difficult for geographers to speculate on the relations of a population to its territory when the population doubles every 20 or 30 years or to ...
The study found that (1) the spatial differentiation and spatial correlation of carbon emission in Anhui Province are significant, At the beginning, it shows the characteristics of "high north and low south" and "high west and low east", and then the "core–edge" structure of carbon ...
As a predominantly Muslim and ethnically diverse new democracy in Asia, Indonesia is a timely case to study how the contending forces of development and so
We assumed different spatial regimes of population dynamics associated with each stage of the cycle64, modelling the variability in population growth rates (\(Pop.Growth_{(t=2,1)}\)) as a function of (i) population growth rate (\(Pop.Growth_{(t=2,1)}\)) in the previous (i.e. \...
Economic progress and the demographic transition in the history of the modernization in Japan over the last 100 years has great significance. Currently the economy has developed to the stage where more of a labor force is needed. This is so even though Japan has 100000000 people almost triple ...
According to the innovation diffusion theory [33], new technology dissemination depicts an S-shaped curve where only a few adopters in the early stage invest in the innovation, while other agents take time to choose. This raises the question of what factors influence individuals to adopt an ...
World Health Organization (WHO) defines young as a person aged from 10 to 24 years old1. Young individuals are a large segment of the population comprising 1.8 billion (27%) world population of which 90% of them live in developing countries2,3. Young is the stage of transition from ...
First, as sST2 is mainly expressed by endothelial cells, this enables cell-type-specific manipulation of sST2 expression, and that manipulation may not need to cross the blood–brain barrier. Second, sST2 levels are elevated in individuals with MCI or early-stage AD24,32, suggesting the ...