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   269篇
  免费   15篇
  2023年   1篇
  2022年   1篇
  2021年   1篇
  2020年   13篇
  2019年   8篇
  2018年   19篇
  2017年   23篇
  2016年   14篇
  2015年   14篇
  2014年   13篇
  2013年   119篇
  2012年   8篇
  2011年   9篇
  2010年   5篇
  2009年   6篇
  2008年   8篇
  2007年   3篇
  2006年   4篇
  2004年   1篇
  2003年   3篇
  2002年   2篇
  2001年   3篇
  2000年   2篇
  1998年   2篇
  1996年   1篇
  1985年   1篇
排序方式: 共有284条查询结果,搜索用时 156 毫秒
91.
92.
Book review     

Miriam Wright: A Fishery for Modern Times. The State and the Industrialization of the Newfoundland Fishery, 1934–1968, The Canadian Social History Series, Ottawa 2001, 196 pages  相似文献   
93.
94.
95.
GEZA‘     
Abstract

Through a material and exegetical analysis of the texts in question (Isa 11, 1; 40, 24; Job 14, 8) the thesis demonstrates that from a horticulotural point of view, gz‘ displays the characteristics of a cutting (contextually perhaps a root sucker): gz‘ is a shoot taken from a tree (though its being cut off is not explicitly stated), planted in the soil where it takes root, it grows up, and in the religious imagery it is watered by the gardener who decides its fate.  相似文献   
96.
This paper addresses the knowledge gap that exists in relation to understanding and quantifying the sensitivity of organic-rich archaeological deposits with respect to changes in the soil environment. Based on two case studies we demonstrate that it is possible to quantify the current decay rate in unsaturated archaeological deposits by combining decay rates measured in the laboratory with on-site monitoring data in a simple decay model. The decay of organic archaeological deposits is highly sensitive to variations in soil temperatures and soil water content. Measurements of soil water content cannot always stand alone as a representative measurement of oxygen availability; which suggests that in situ measurements of oxygen content or redox potential are needed in order to understand the preservation conditions at a site. The results of this study emphasize the advantage of combining monitoring data with laboratory studies, in order to document in more detail where and when degradation takes place.  相似文献   
97.
African rural dwellers have faced depressed economic prospects for several decades. Now, in a number of mineral‐rich countries, multiple discoveries of gold and precious stones have attracted large numbers of prospective small‐scale miners. While their ‘rush’ to, and activities within, mining sites are increasingly being noted, there is little analysis of miners' mobility patterns and material outcomes. In this article, on the basis of a sample survey and interviews at two gold‐mining sites in Tanzania, we probe when and why miners leave one site in favour of another. Our findings indicate that movement is often ‘rushed’ but rarely rash. Whereas movement to the first site may be an adventure, movement to subsequent sites is calculated with knowledge of the many risks entailed. Miners spend considerable time at each site before migrating onwards. Those with the highest site mobility tend to be more affluent than the others, suggesting that movement can be rewarding for those willing to ‘try their luck’ with the hard work and social networking demands of mining another site.  相似文献   
98.
99.
100.
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