The numerical simulations performed in [ 16] showed that the model can generate PAC under restricted conditions that included strong connections within the same populations, weaker connections between populations (especially from fast to slow populations), and carefully tuned inputs.
It is hard to tell whether this "Costa Rican model" can be exported to other Latin American countries with much larger or less integrated populations, weaker institutions and fewer resources available for public health.
NP residents were less frequent visitors despite generous park provision, due to the youthful population, weak social cohesion, and limited integration of new migrants.
However, in a gene association study, where 62 SNPs are investigated, it is very difficult to detect in such a population weak effects or gene-gene interactions.
In the POP369 population, weak correlations of r = 0.357 (P < 0.0001) and r = 0.27 (P < 0.0001) were observed between FD and harvest date in 2011 and 2012, respectively, although no such significant correlation was found in the POP356 population in 2011.
And the OECD includes among its 34 members a dozen or so relatively poor economies – Mexico, Chile, Turkey, Estonia and Slovakia, for example – where the welfare state is much smaller for various reasons (eg younger population, weaker parties of the left).
The U.S. is a net debtor with an aging population, weaker economic growth and risks of continued monetization of the fiscal deficit.
To hear the NRA tell it, gun laws only make the population weaker and more liable to be attacked, and any move for a national gun registry is only in preparation for a Nazi takeover.
Moreover, natural disasters in low-income countries are more likely to cause higher morbidity and mortality compared to middle-income and high-income countries due to higher vulnerabilities of the population, weaker healthcare system, and limited surge capacity.
Evidence for other outcomes and populations is weak or very weak.
