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CO2 laser irradiation onto growing a-Si:H surface caused a decrease of the optical bandgap down to 1.63 eV and a significant increase of the photosensivity. Primary effect of the laser irradiation was a conventional substrate heating, while the optical bandgap narrowing could not be explained by heating effect alone.
Previous studies have reported the association between advanced paternal
age at birth and the risk of autistic-spectrum disorder in offspring,
including offspring with intellectual disability.
To test whether an association between advanced paternal age at birth is
found in offspring with high-functioning autistic-spectrum disorder (i.e.
offspring without intellectual disability).
A case–control study was conducted in Japan. The participants consisted
of individuals with full-scale IQ ⩾ 70, with a DSM–IV autistic disorder
or related diagnosis. Unrelated healthy volunteers were recruited as
controls. Parental ages were divided into tertiles (i.e. three age
classes). Odds ratios and 95% confidence intervals were estimated using
logistic regression analyses, with an adjustment for age, gender and
Eighty-four individuals with autistic-spectrum disorder but without
intellectual disability and 208 healthy controls were enrolled. Increased
paternal, but not maternal, age was associated with an elevated risk of
high-functioning autistic-spectrum disorder. A one-level advance in
paternal age class corresponded to a 1.8-fold increase in risk, after
adjustment for covariates.
Advanced paternal age is associated with an increased risk for
high-functioning autistic-spectrum disorder.
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