[lemma=importance]? [word=□]
[lemma=importance]? [word=of]
Nevertheless , repository managers should not lose sight of the immediate importance of filling the repositories . The researchers quantified the relative importance of a node to a consumer by using survey data on purchase frequency . Within an industry , for example , the firm size distribution would indicate the degree of industrial concentration - - a quantity that might be of interest in setting antitrust policy . It is essential for the increasing number of faculty and information professionals who recognise the potential importance of e-print repositories to seek to bring about change in their local communities and beyond . In addition , infusions of magnesium sulfate seem to help some people during an acute headache , and they seem to relieve migraine pain in people with magnesium deficiencies . Ackland and Butler reported that the threshold depends on a single criterion : the fraction of competitors in a given event who encounter others and can stay with them . The branch of pure mathematics known as Ramsey theory concerns the existence of highly regular patterns in sufficiently large sets of randomly selected objects , whether they are gatherings of people , piles of pebbles , stars in the night sky , or sequences of numbers generated by the throw of a die . Unfortunately , very little of this preservation metadata is currently collected for e-prints , to the extent that an e-print repository may not even be able to tell exactly what file formats it holds .