首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   35篇
  免费   0篇
  2017年   1篇
  2016年   4篇
  2013年   11篇
  2012年   4篇
  2011年   2篇
  2010年   2篇
  2009年   2篇
  2008年   1篇
  2007年   1篇
  2006年   1篇
  2005年   1篇
  2002年   2篇
  2000年   1篇
  1998年   1篇
  1996年   1篇
排序方式: 共有35条查询结果,搜索用时 15 毫秒
31.
The investigation is based on bone element data of early Mediaeval human skeletal samples from eight differing environmental conditions in lowland and mountain range localities of southern Germany. Reconstruction of plausible subsistence strategies revealed close correlations with the respective ecological potentials of the localities as indicated by proxy data on geomorphology, climate, and soil quality. In general, lowland situations showed mixed dietary patterns with a prevalence of agricultural farming, whereas in mountainous areas the emphasis was on dairy farming production and horticulture. This points to subsistence activities during the early Middle Ages that are closely adjusted to differing environmental conditions. An obvious deviation from this pattern in one locality (Kirchheim unter Teck) is explained in terms of successful socio-cultural buffering of limited but effective exploitation of the natural setting.  相似文献   
32.
The butter clam, Saxidomus gigantea, is one of the most commonly recovered bivalves from archaeological shell middens on the Pacific Coast of North America. This study presents the results of the sclerochronology of modern specimens of S. gigantea, collected monthly from Pender Island (British Columbia), and additional modern specimens from the Dundas Islands (BC) and Mink and Little Takli Islands (Alaska). The methods presented can be used as a template to interpret local environmental conditions and increase the precision of seasonality estimates in shellfish using sclerochronology and oxygen isotope analysis. This method can also identify, with a high degree of accuracy, the date of shell collection to the nearest fortnightly cycle, the time of day the shell was collected and the approximate tidal elevation (i.e., approx. water depth and distance from the shoreline) from which the shell was collected.Life-history traits of S. gigantea were analyzed to understand the timing of growth line formation, the duration of the growing season, the growth rate, and the reliability of annual increments. We also examine the influence of the tidal regime and freshwater mixing in estuarine locations and how these variables can affect both incremental structures and oxygen isotope values. The results of the sclerochronological analysis show that there is a latitudinal trend in shell growth that needs to be considered when using shells for seasonality studies.Oxygen isotope analysis reveals clear annual cycles with the most positive values corresponding to the annual winter growth lines, and the most negative values corresponding to high temperatures during the summer. Intra-annual increment widths demonstrate clear seasonal oscillations with broadest increments in summer and very narrow increments or no growth during the winter months. This study provides new insights into the biology, geochemistry and seasonal growth of S. gigantea, which are crucial for paleoclimate reconstructions and interpreting seasonality patterns of past human collection.  相似文献   
33.
The articles argues that in 1971–1973 North Korea’s leader Kim Il Sung used the Sino-American rapprochement and the Soviet-American détente to pursue Korean reunification on his terms; his aim was to ‘democratize’ and then ‘revolutionize’ South Korea and so achieve through dialogue what he failed to achieve through militancy. Kim’s game was based on a misreading of the political dynamics in South Korea and on misplaced confidence in North Korea’s attractiveness. He also misjudged his ability to obtain China’s and the USSR’s backing for his schemes.  相似文献   
34.
35.
Germany appears as the case in point of a country that is getting through the current crisis rather well. Central to this “success” is the passive revolution that the country has undergone in the 2000s during which a state‐led restructuring of the regime of accumulation has resulted in the creation of a new stratum of working poor and an overall lowering of wages. Following a discussion of this passive revolution and the resulting mass impoverishment, this article explores the struggle over cultural hegemony, which has surfaced in various controversies since the beginning of the current economic crisis in 2007. I argue that there is a passive consensus concerning “poverty” – which is unpopular, but regarded as inevitable – that is outweighed by an active consent concerning “Germany” – an immensely popular notion. In Germany, a new nationalism that blends classism and racism in the service of the economic competitiveness of the nation is argued to be at the core of cultural hegemony in these times of crisis.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号