a policy so that only two children were born per couple, more than 70 years would pass before the world population would finally stabilize at approximately 13 billion. A more daunting projection is that if fertility remains at current levels, the population will reach nearly 13 billion by 2050...
(2005) Estimation of long-term effective population sizes through the history of durum wheat using microsa- tellite data. Genetics 169, 1589-1599.Thuillet A.C., Bataillon T., Poirier S., Santoni S., David J.L., 2005. Estimation of Long-Term Effective Population Sizes Through the History...
Multidirectional moving population flow estimation method on basis of generalized regression neural network本发明涉及一种基于广义回归神经网络的多向运动人群流量估计方法. The present invention relates to a multi-directional movement of the crowd flow estimation method based on generalized regression neural ...
Moreover, thanks to the availability of population data, the annual cosmic-ray collective dose has been evaluated and population-weighted average annual effective dose (per capita) due to cosmic ray has been estimated for each European country considered in this study. The accuracy of the present...
Cookc, and Leontine Alkemad aInstitute of Policy Studies, Lee Kuan Yew School of Public Policy, National University of Singapore, Singapore 259599; bPopulation Estimates and Projections Section, United Nations Population Division, Department of Economic and Social Affairs, ...
Z En - 《Water Resources Research》 被引量: 0发表: 1979年 Reply [to "Comment on 'The small sample estimation of h,' 'The small sample expectation of population and adjusted ranges,' and 'The small sample expectati... Adipocyte differentiation takes place via a complex series of steps. ...
while negotiating one of the basic needs of humanity—the need for mobility3. The United Nations estimates that the global population could grow from 7.7 billion people worldwide in 2019 to around 9.7 billion in 2050. The additional population and economic growth will likely lead to increased dem...
(SSP2, no climate change) from the Intergovernmental Panel on Climate Change fifth assessment47. Total cereal demand per country in 2050 was calculated based on projected 2050 population (medium-fertility variant of United Nations population prospects;https://population.un.org/wpp/) multiplied by ...
Electricity consumption globally has continued to increase rapidly. Between 1990 and 2021, the world’s annual electricity consumption rose from 10,000 TWh to 25,100 TWh [1]. As the rise of technology and population increases at an alarming rate so is electricity consumption. Building spaces are...
As a result, the population over 60 will grow from 700 million in 2019 to more than 2 billion in 2050. The annual growth rate of the population in this age group is expected to be 2.6% compared to 1.2% for the general population. Within this segment, the largest growth is expected ...