Introduction. What Are the Real Population and Resource Problems?

1996 ◽  
pp. 3-20
Keyword(s):  
The Real ◽  
Real Population

Human Capital Enhancement through Education and Immigration

2017 ◽  
Author(s):  
Yue Chim Richard Wong
Keyword(s):  
Human Capital ◽  
Hong Kong ◽  
Population Aging ◽  
Postwar Period ◽  
Working Population ◽  
The Real ◽  
Real Population ◽  
Readiness To Adopt ◽  
The City ◽  
Education And Immigration

The chapter points out that to meet Hong Kong’s population challenge in the next three decades, it urgently needs to implement human capital enhancement policies. Its future as an international metropolis is under severe challenge because of the aging of its population. The failure to replenish itspopulation numbers with university-educated talents, especially in the working population, is very worrying. Hong Kong’s population aging problem is particularly seriousImmigrants who came in the postwar period were the foundation of Hong Kong’s success, and they enriched the life of the city. The city must shed the insular mentality that is emerging today if it is to avoid the fate of becoming a capitalist museum by the end of this century. The real population challenge for Hong Kong lies in our readiness to adopt and implement policies that are necessary to shaping the city’s future.

scholarly journals Estimation of the real population and its impact on the utilisation of healthcare services in Mediterranean resort regions: an ecological study

2007 ◽  
Vol 7 (1) ◽  
Author(s):  
Emilio Perea-Milla ◽  
Sergi Mari Pons ◽  
Francisco Rivas-Ruiz ◽  
Anna Gallofre ◽  
Enrique Navarro Jurado ◽  
...  
Keyword(s):  
Ecological Study ◽  
Healthcare Services ◽  
The Real ◽  
Real Population

The real population problem: Distribution.

1972 ◽  
Vol 27 (10) ◽  
pp. 976-977
Author(s):  
Joachim F. Wohlwill
Keyword(s):  
Population Problem ◽  
The Real ◽  
Real Population

scholarly journals Exploring the causes of small effective population sizes in cyst nematodes using artificial Globodera pallida populations

2019 ◽  
Vol 286 (1894) ◽  
pp. 20182359 ◽  
Author(s):  
Josselin Montarry ◽  
Sylvie Bardou-Valette ◽  
Romain Mabon ◽  
Pierre-Loup Jan ◽  
Sylvain Fournet ◽  
...  
Keyword(s):  
Genetic Drift ◽  
Overlapping Generations ◽  
Temporal Analysis ◽  
Globodera Pallida ◽  
Effective Population ◽  
Cyst Nematodes ◽  
The Real ◽  
Real Population ◽  
Population Sizes ◽  
The Ideal

The effective size of a population is the size of an ideal population which would undergo genetic drift at the same rate as the real population. The balance between selection and genetic drift depends on the effective population size ( N e ), rather than the real numbers of individuals in the population ( N ). The objectives of the present study were to estimate N e in the potato cyst nematode Globodera pallida and to explore the causes of a low N e / N ratio in cyst nematodes using artificial populations. Using a temporal analysis of 24 independent populations, the median N e was 58 individuals (min N e = 25 and max N e = 228). N e is commonly lower than N but in the case of cyst nematodes, the N e / N ratio was extremely low. Using artificial populations showed that this low ratio did not result from migration, selection and overlapping generations, but could be explain by the fact that G. pallida populations deviate in structure from the assumptions of the ideal population by having unequal sex ratios, high levels of inbreeding and a high variance in family sizes. The consequences of a low N e , resulting in a strong intensity of genetic drift, could be important for their control because G. pallida populations will have a low capacity to adapt to changing environments.

scholarly journals Hemophilia B — Mutation Rates and Incidence — A Simulation Study

2020 ◽  
Vol 23 (3) ◽  
pp. 174-177
Author(s):  
Alan E. Stark
Keyword(s):  
Simulation Study ◽  
Population Based ◽  
Hemophilia B ◽  
Critical Parameters ◽  
Mutation Rates ◽  
The West ◽  
The Real ◽  
Virtual Population ◽  
Real Population ◽  
Males And Females

AbstractThe dynamics of rare X-linked recessive traits is explored by simulation. The model follows the prevalence of affected males and carrier females as separate but correlated variables. Different mutation rates and selection coefficients are introduced for males and females. A virtual population based on a published study of hemophilia B in the west of Scotland is followed at weekly intervals over many years. Speculative values of critical parameters to mimic the real population are proposed.

scholarly journals Problems of statistical evaluation of the volume of non-registered population of Kyiv

2013 ◽  
pp. 61-64
Author(s):  
O. Pozniak
Keyword(s):  
Population Size ◽  
Statistical Evaluation ◽  
The Real ◽  
Real Population ◽  
Account Information ◽  
Government Statistics

The statistic evaluation of the real population size in Kyiv based on data from government statistics on the number of de-jure population in the capital, taking into account information from other sources is done. Terms “nightly population” and “daily population” are introduced into scientific use.

scholarly journals Effective population size and durability of plant resistances in the potato cyst nematode Globodera pallida

2017 ◽  
Author(s):  
Josselin Montarry ◽  
Eric J. Petit ◽  
Sylvie Bardou-Valette ◽  
Romain Mabon ◽  
Pierre-Loup Jan ◽  
...  
Keyword(s):  
Population Size ◽  
Effective Population Size ◽  
Cyst Nematode ◽  
Potato Cyst Nematode ◽  
Globodera Pallida ◽  
List Type ◽  
Effective Population ◽  
The Real ◽  
Real Population ◽  
Phytoparasitic Nematodes

SummaryThe effective size of a population is the size of an ideal population which would drift at the same rate as the real population. The balance between selection and genetic drift depends on the population size expressed as the genetically effective population size (Ne), rather than the real numbers of individuals in the population (N).The objectives of the present study were to estimate Ne in the potato cyst nematode Globodera pallida using artificial populations and to explore the link between Ne and the durability of plant resistances.Using a temporal method on 24 independent pairs of initial and final populations, the median Ne was 58 individuals.Ne is commonly lower than N but in our case the Ne/N ratio was extremely low because G. pallida populations deviate in structure from the assumptions of the ideal population by having unequal sex-ratios, high levels of inbreeding and a high variance in family sizes. The consequences of a low Ne could be important for the control of phytoparasitic nematodes because G. pallida populations will have a low capacity to adapt to changing environments unless selection intensity is very strong, which could be greatly beneficial for long-term use of plant resistances.

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