In this paper a method for characterizing the age distribution of a population by means of an 'index word' is outlined. It is shown that the method can be applied to yield approximations to population forecasts.doi:10.1080/00324728.1949.10416668Hannes Hyrenius...
populationconservationcaptive breedingIranThe Chinkara (Gazella bennettii) population in Iran has been experiencing a serious decline in the last few decades. The current population is estimated at 2,818 individuals in 32 reserves and additionally at least 500 individuals outside protected areas. The ...
The distribution of ancestry within individuals (Fig. 1a) and aggregated ancestry proportions across the entire cohort (Fig. 1b) show that the majority of individuals have varying degrees of Sub-Saharan African (average 82.3%), European (average 15.4%), and East Asian & Native American (...
Population AgingChinaIt is generally accepted that zero-growth population would be the long-term destiny of any population. China's population is expected to reach 1.4 billion with zero-growth around 2030, if the low fertility policy continues up to then. Demographic dynamics indicate that the ...
common alleles (frequency > 0.01) for each TR. They-axis denotes the mean LD (r2) of the best tag SNP for TRs in each bin. For (a,b), colors denote 1000 Genomes superpopulation.cDistribution of the distance between each TR and its best tag SNP. They-axis is given on a log10...
Population events such as natural disasters, pandemics, extreme weather, and wars might cause jumps that have an immediate impact on mortality rates. The recent COVID-19 pandemic has demonstrated that these events should not be treated as nonrepetitive exogenous interventions. Therefore, mortality mode...
U.S. population by sex and age 2023 Age distribution in the United States 2022 U.S. population aged 65 years and over 2021, by state U.S. - seniors as a percentage of the population 1950-2050 Discover Statista Statista Search Statista Search Need help with using Statista for your rese...
Based on the road distribution, land cover and population census data, this study specifically probed the relationship between the expressways and the land cover and population of Beijing. The results show that: (1) as the distance from an expressway increases, the amount of built-up land ...
Sampling distributions are an important part of study for a variety of reasons. In most cases, the feasibility of an experiment dictates the sample size. Sampling distribution is the probability distribution of a sample of a population instead of the entire population. ...
as a tool to manage and mitigate mental health inequalities in the population. However, there is a dearth of longitudinal evidence of the mechanisms and impact of blue spaces on clinical markers of mental health to support and inform such interventions. We conducted a 10-year retrospective study...