Summing up the features of population science and epidemiology, the present health state in Shanghai had been in a transition period to the industrialized society.

综合人群中人口学和流行病学的特点，上海的卫生状况已处在向工业化社会过渡的转换期。

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Thus, large Numbers of coin hoards are a good quantitative indicator of population decline, two researchers argue in in the Proceedings of the National Academy of Science Monday.

因此，大量的钱币窖藏是人口减少的风向标，两位研究人员在《国家科学院科学星期一公报》上就此发表了一些看法。

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The existence of a large population on a limited area is only possible owing to science and technique； education must, therefore, hand on the necessary minimum of these.

只有科学技术才能使大量人口在有限空间生存成为可能；因此，教育必须传授这些必要的基本知识。

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Population science is once more centre-stage, pushed by climate change, which raises worries about the impact so many billions have on the environment of the earth, and food-price spikes, which imply doubts about whether it will be possible to feed them all.

ECONOMIST: The digressions of people power

Still, reports on population exposure are as much guesswork as science.

WSJ: In Japan, Relief at Radiation's Low Toll

The academic research has in turn spawned a population of venture-capital-funded work in life science.

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