    Sentence 1: In those countries where dialect study is  undertaken, dialectologists observe that there are  today many factors militating against the strict  maintenance of older dialect the standardization of  terminology as adopted by national periodicals,  news services, radio, and television; 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 WWIIL    Sentence 2: Outside of the U.S., this phenomenon is  most prominently seen in the other countries  involved in WUIIL