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71.
J.M. Wagstaff 《Journal of archaeological science》1981,8(3):247-264
A distinctive “Younger Fill” has been identified in the Mediterranean and adjacent regions. The dominant explanation for it is that of climatic change, first advanced by Vita-Finzi in 1960. Recent work on Greece by Bintliff appears to support the hypothesis. However, there are weaknesses. The present paper isolates the assumptions upon which the climatic hypothesis rests, particularly the notion of synchroneity and the apparent need for a universal mechanism. It sets out the grounds for scepticism, which include the ambiguity of the data, and attempts to evaluate the recent evidence from Greece. The paper then proceeds to argue that an anthropogenic origin cannot be ruled out and that it merits serious consideration. Criteria are suggested which the reinstated explanation would need to meet. 相似文献
72.
Susan R. Brooker-Gross 《Journal of Historical Geography》1981,7(2):167-179
News wire services were established in the United States in the mid-nineteenth century to gather and distribute news for local newspapers, using the new technology of the telegraph. With that early beginning in the era of electronic communication, the expansion of news wire services spans the change from a society of local communities to a more nationally integrated society. This paper assesses the importanceof changes in the medium's spatial organization which promoted national culture. The first wire services were local, ad hoc groups, organized to achieve greater efficiency in news-gathering. Formal services were first organized on a local basis, but in 1848 they began to sell news to the major urbanized portions of the United States. As the nation grew, the desire for greater efficiency conflicted with the desire for greater autonomy. Regional wire services persisted from the 1860s to the 1880s but after the 1880s, a tenuous national organization was achieved, cementing itself into a national system after the turn of the century. Efficiency in news collection was the primary reason for the increasing scale of news collecting groups. Each step toward larger spatial coverage, fed the growth of a complex interdependent urban system. 相似文献
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权力的让渡和主权的坚持:略析欧洲一体化中的“主权让渡” 总被引:1,自引:0,他引:1
欧洲一体化实行了一定程度的权力让渡和共享,但成员国仍然保持着主权,并主导着一体化。证诸欧洲一体化进程可以看到:一、所有的权力让渡都需要成员国全体一致同意,体现了成员国主权的行使;二、"辅助性原则"限制着权力让渡;三、偏向于"政府间主义"的"机构间平衡",共同体/欧盟的决策/立法权始终掌握在由成员国代表组成的理事会手中;四、种种"灵活性"和"例外",使成员国在权力让渡的问题上保持最大限度的自主性。 相似文献
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