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While it is legal for a Radiation User to receive more than 1 mSv per annum and up to the 50 mSv limit , any Radiation User who does so , or is likely to do so , must be re-classified as a Nuclear Energy Worker . " Today , 5 percent of toddlers and up to 10 percent of adolescent girls in the United States have iron deficiency . Sound public policy decisions about the waters of the Great Lakes ( and all our waters ) and meaningful action about them by government must be based on sound and up to date science . Notice that aggressive and fixed horizon use less lookahead information than reverse aggressive , in that for both of them , the `` only '' future information needed are the identities of the next missing blocks ( up to H missing blocks for fixed horizon , and up to d times batch-size for aggressive ) , and their positions in the sequence relative to the next references to blocks currently in the cache . Companies as diverse as American Express and UPS to your local bank all offer mechanisms that can help .