about 35% of men and 37% of women had a body mass index greater than 30 or higher. This weight problem may also account for why the US—though it’s one of the wealthiest countries in the world—is 40th in life expectancy. The average life expectancy in the US is around 78-years-...
In addition, policy responses related to retirement incentives, pension funding methods, investments in health care of the elderly, and immigration can further ameliorate the effect of population aging on economic growth. 展开 DOI: 10.7208/chicago/9780226386881.003.0003 被引量: 135 ...
In a model on population and endogenous technological change, Kremer (1993) combines a short-run Malthusian scenario where income determines the population that can be sustained, with the Boserupian insight that greater population spurs technological change and can therefore lift a country out of its...
The first advanced Bronze Age civilization of Europe was established by the Minoans about 5,000 years before present. Since Sir Arthur Evans exposed the Minoan civic centre of Knossos, archaeologists have speculated on the origin of the founders of the c
Recent investigations of Blanding's turtles Emydoidea blandingii in urban landscapes in the Greater Chicago metropolitan area (GCMA) indicate that populations are small and isolated. This led to the prediction that two local populations of Blanding's turtles in the GCMA would have less within-popul...
Evolution and the Genetics of Populations Vol. 2 (Univ. Chicago Press, Chicago, Illinois, 1969). Google Scholar Crow, J. F. in Statistics and Mathematics in Biology (eds Kempthorne, O., Bancroft, T. A., Gowen, J. W. & Lush, J. L.) 543–556 (Iowa State Univ. Press, Ames, ...
RNFL thickness measurement was performed using Optovue RTVue Optical Coherence Tomography OCT, which generates high-resolution, cross-sectional (3D) images of the retina, optic disc and anterior segment. Statistical analysis We used SPSS 21.0 (Chicago, USA) in our statistical analysis. We first ...
Before running a statistical analysis, we filtered out 1% of our data exceeding 3 standard deviations in the following variables: age and duration of the test. We used IBM SPSS Statistics 21 (SPSS Inc, Chicago, IL) for all statistical analyses. P values < .05 were considered statistically si...
cities. The most intense annual netflows (>2000 people per year), accounting for approximately 17% of the entire inter-city U.S. netflows, are mainly from New York and Chicago to California and Florida (Fig. 2), and from Los Angeles to neighboring cities. Notably, netflows among the ...
根据第一段This means more homes,roads and other infrastructure.这意味着要更多的房屋、道路和其他基础设施;In India alone,a city the size of Chicago will have to be developed every year to meet demand for housing.仅在印度,一个像芝加哥那么大的城市每年...