    Sentence | In those countries  where dialect study is undertaken,  dialectologists observe  that there are today many factors  mililating against the strict maintenance  of older dialect the standardization of  Terminology a» adopled by “national  eriodicals, news services, radio, and  Haevision: the establishment of prestige  dialects and, through the media, their  promulgation; and the huge population  shifts that have taken place: particularly  in the U.S. since WWIL    