Subacute sclerosing leucoencephalitis (S.S.L.E.), by which is meant not only the type of disease described by van Bogaert (1945) but also the inclusion body type earlier described by Dawson (1933), usually runs a progressive and ultimately fatal course of a few months. Osetowska's (1961) 50 cases from van Bogaert's laboratory included 48 with durations of 1-5-18 months and a mean duration of 6 ...

Measles is a highly contagious, acute viral illness that can lead to severe complications and death. Even patients who experience uncomplicated acute measles have a small risk for developing a devastating neurologic illness, subacute sclerosing panencephalitis, years after their infection. Measles was documented as eliminated (defined as interruption of continuous transmission lasting ≥12 month...

Recently, G. C. Van Orden, J. G. Holden, and M. T. Turvey (2003) proposed to abandon the conventional framework of cognitive psychology in favor of the framework of nonlinear dynamical systems theory. Van Orden et al. presented evidence that "purposive behavior originates in self-organized criticality" (p. 333). Here, the authors show that Van Orden et al.'s analyses do not test their hypothese...

Extensive scanning tunneling microscopy and spectroscopy experiments complemented by first-principles and parametrized tight binding calculations provide a clear answer to the existence, origin, and robustness of van Hove singularities (vHs) in twisted graphene layers. Our results are conclusive: vHs due to interlayer coupling are ubiquitously present in a broad range (from 1° to 10°) of rotati...

Two hundred and ninety cases of subacute sclerosing panencephalitis (SSPE) registered in England and Wales from 1970 to 1989 were followed at 6-monthly intervals. Male to female ratio was 2.8:1. Age at onset increased significantly over the period. Measles was recorded for 81% of cases; in nearly half this had occurred under 2 years. Measles vaccine was documented in 20 cases; in 10 measles was...

The presence of differential item functioning (DIF) in a test suggests bias that could disadvantage members of a certain group. Previous work with tests of visual learning abilities found significant DIF related to age groups in a car test (Lee, Cho, McGugin, Van Gulick, & Gauthier, 2015), but not in a face test (Cho et al., 2015). The presence of age DIF is a threat to the validity of the test...