The phrase "aging inversion" is not commonly recognized in written English, but it is grammatically correct.
It can be used in contexts discussing demographic trends, particularly when referring to the phenomenon of an aging population leading to a reversal in age distribution.
Example: "The aging inversion in our society poses significant challenges for healthcare and social services."
Alternatives: "demographic shift" or "age reversal".
Low counts of charcoal (<5 fragments per 1 mL of peat) are first recorded in the peat profile at the top of the uninvaded zone, just prior to c. 1800 cal year AD but probably reflect reworking as a consequence of site disturbance during the European era (also supported by age inversion at 33 cm—Table 1).
Re "Japan Blocks the Young, Stifling the Economy" ("The Great Deflation" series, front page, Jan . 28: Japan is aggravating one of the worst demographic age inversions in the developed world.
StalAge is applicable to problematic datasets that include outliers, age inversions, hiatuses and large changes in growth rate.
Secondly, age data are screened for minor outliers and age inversions, and the uncertainty of potential outliers is increased using an iterative procedure.
We estimated the age of inversion 2q using the same procedure as before as 1.4 myr, a figure fully compatible with the phylogeny.
We do not find a significant difference in codon usage between arrangements, suggesting the age of inversions and HRI as a result of suppressed recombination are unlikely to impact base composition and codon usage on the third chromosome of D. pseudoobscura.
Blacks exhibited a much higher ratio after age 34, an inversion of the suicide rate pattern.
Analyses of the age of the inversion event and its history have led to differing conclusions (11, 12, 16, 17).
According to the predictions of Navarro et al. (2000), patterns of nucleotide variability along the chromosome of gene arrangements will depend on the age of the inversion.
As the age of the inversion increases, total nucleotide variability is expected to be similar to that of a panmictic neutral population over much of the inversion due to the effects of mutation, gene conversion, recombination between individuals homozygous for the inversion, and rare double-crossover events between inversion heterokaryotypes (Navarro et al. 1997, 2000).
