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" This concept of a ' canary in a coal mine ' suggests that animals may be useful sentinels for human environmental health hazards , " said Rabinowitz . The concept of a referral and the mechanism for deciding when they should be issued is described by CIP . Alan suggested The Rosetta Stone Model , a concept of a metaknowledge archive that collects such information . However a connection ( liaison ) can also exist when only a protocol such as IP is in use ( IP has no concept of a connection that persists for a period of time ) . Because subsections are merely a convenience restricted to gas there is no concept of a subsection location counter . They cannot meet in the middle of the remaining distance , by the very concept of a minimum . Partly this is because there is no real concept of a " Gold " or " Generally Available ( GA ) " type release common to other commercial software , but instead there is simply a release of the current work  in  progress . Like the previous events , this UnConference ( tm ) resists the bigger-is-better trend of recent years and maintains the concept of a focused , single-track event featuring just the very best presentations from the cream of XML geekdom . He had no concept of a God , no idea whether he had had a pre-earth existence or whether he would live on after death . The traditional concept of a library is being redefined from a place to access paper records or books to one that also houses the most advanced media , including CD-ROM , the Internet , virtual libraries , and remote access to a wide range of resources . If you truly buy into the notion that Web Services will be an underlying technology that powers service-oriented applications and point-to-point integration solutions , then there is no concept of a separate " market " for Web Services . A concept of a gender continuum , separate from biological sex types was something widely accepted by some Native tribes and communities , pre-colonization . Insofar as there is a distinction between these two cases , the Court drew it in part on the basis of Cooley , that some subjects embraced within the meaning of commerce demand uniform , national regulation , while other similar subjects permit of diversity of treatment , until Congress acts , and in part on the basis of a concept of a “ direct ” tax on interstate commerce , which was impermissible , and an “ indirect ” tax , which was permissible until Congress acted.901 Confusingly , the two concepts were sometimes conflated , sometimes treated separately . We have n't touched on entry and exit pages yet , but they are based on the concept of a ' visit ' , which we have already seen is n't accurate . This concept of a global industry-cooperative suppression list has been discussed for years . The Mazda Nagare ( pronounced nah-gar-ay ) is more ambiguous , a “ concept of a concept , ” say its creators . Pa ramount Market Position ICC seriously questions the desirability of introducing new terminology - the concept of a " paramount market position " - in the Draft Notice . The disadvantaged groups view this concept of a universal method of scientific enquiry with understandable suspicion . To the extent that the Act recognizes that the needs of consumers with disabilities goes beyond the concept of a relay service ( the service that allows individuals with hearing or speech disabilities to use an intermediary to translate audio communication to textual communication or vice versa ) , section 255 of the law represents a major expansion of the commitment to universal service .