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spec: These communities have built schools , they have built other public facilities , they have hired teachers , they have hired policemen and firemen as a result of these host community payments . Religion is strongly embedded in cultures and the degree of religiosity tends to vary from country to country . Despite AOL and Google 's relationship , Overture has maintained its partnership with AOL Europe for paid listings , expanding that partnership in February to include in some of its country portals ' search directories . I know that if you categorify the concept of bundle ( or sheaf , really ) you get the concept of " gerbe " , and if you categorify the concept of connection you get the concept of " connective structure " ... As noted under Discussion Paper No. 86 above , the concept of " author " is not a simple one in USMARC . Stallman : This is not really a change . The concept of " ambiguity " was explained by John Chancellor of NBC : " The trouble with Yasser Arafat is that his native language seems to be ambiguity . It would be , I think , far easier to write if one had an architecture of plot to follow , but this just does not come to me that quickly . The audience for traditional classical music is overwhelmingly caucasian , whether in Europe or North America , and despite paying frequent lip service to the vague concept of " diversity , " few practitioners of the art have made any serious attempts to widen the appeal of the genre . Specifically , the book presents important strategies for avoiding the inconsistencies that can crop up in multi-threaded programs , addresses the concept of " liveness " - how to ensure that all threads in use are kept active simultaneously , examines state-dependent action , and demonstrates effective methods for handling user requests in a multi-threaded environment .