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The contrast between the abundance of messages warning about substance use during pregnancy and the very few messages aimed at reduce substance use among parents may unwittingly reinforce a notion that substance use is not very harmful when one is not pregnant . Find the Clipping PathsIn the Dark Ages of desktop publishing ( before QuarkXPress 4 ) there were very few choices for working with clipping paths in a page layout program . This is at least a couple magnitudes worse than would be possible in a dark sky , and is a serious limit to accurate pointing because so few stars can be seen , especially at the high Galactic latitudes where we were normally working . There are too many compelling questions about communication and too few persons with the training and intelligence to examine them to discourage anyone from remaining a part of the field . persons from Africa ) , there were some neighborhoods with too few persons in the sample to obtain a reliable estimate of the proportion of foreign-born . This rule should also be observed with reference to the appointment of a curator , for curators in very few respects differ from guardians .