Black has represented hardships as well as strength for overcoming those hardships, and gold is for the sun shining on Jamaica. History of the Jamaican Flag. After gaining independence from the British West Indies in 1962, Jamaica launched a national competition to find the design for their new national flag. Of many designs submitted, the gold saltire, or X, beat out various striped flags in the same color scheme.
Detective quantum efficiency. The detective quantum efficiency (often abbreviated as DQE) is a measure of the combined effects of the signal (related to image contrast) and noise performance of an imaging system, generally expressed as a function of spatial frequency.
The presence, extent, and severity of increased. T2 foci in subcortical brain areas were rated in a blinded fashion by. two observers using a four-point scale described by Awad et al. [1). Grade 0 scans had no foci of increased T2 signal; grade 1 scans. showed foci confined to one lobe of the brain or to the posterior. fossa; grade 2 consisted of multiple foci involving more than one lobe. of the brain; and grade 3 scans revealed multiple confluent foci. forming large patches (see Fig. 1).