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   48篇
  免费   2篇
  2022年   1篇
  2016年   3篇
  2014年   1篇
  2013年   28篇
  2012年   1篇
  2010年   4篇
  2009年   1篇
  2007年   1篇
  2006年   1篇
  2005年   3篇
  2002年   2篇
  2000年   1篇
  1994年   1篇
  1976年   1篇
  1952年   1篇
排序方式: 共有50条查询结果,搜索用时 62 毫秒
1.
2.
This paper examines the wider effects of inward foreign directinvestment (FDI) to the UK on improving the practices and competitivenessof domestic industry. Surveyed domestic suppliers, competitors,and customers to foreign investors reported extensive positiveimpacts on their practices, focused particularly on reductionsin X-inefficiencies, and on their competitiveness, althoughin the case of competitors benefits had to be balanced againstadverse effects. Knowledge transfers through personal contactsand the demonstration effect, were important to the transmissionof impacts, but a number of other channels were also important,including additional supplier sales, improved customer inputs,and the competitive spur. Regional policymakers should takethese wider benefits into account in the design of policiesfor attracting and embedding foreign investment. However, whilstthere was no evidence that foreign firms in assisted regionshad fewer benefits than those in core regions, there was a lotof leakage outside of the areas attracting foreign firms, suggestingthat policies to promote spillovers should not be developedentirely in a local or regional framework.  相似文献   
3.
4.
5.
6.
7.
The use of immunological techniques for identifying the origin of proteins and inferring foodstuffs exploited by prehistoric occupations has been conducted for several decades. Cases of experimental laboratory and archaeological studies have shown the potential of these techniques for reliable results. However, very few of these case studies employ archaeological sites that have excellent preservation and high-resolution spatial contexts between identifiable faunal remains, features, and stone tools. We present an assessment of the identification reliability of one immunological technique, protein radioimmunoassay (pRIA), using faunal remains and stone tools from two sites from arctic and subarctic contexts. The results of this research indicate that, even in contexts with excellent preservation, the identifications produced by the pRIA technique are subject to misidentification and cross-reactions due to diagenetic alteration of proteins. We propose a higher minimum reaction value (percent binding of labeled antibody) that mitigates these effects, and renders the pRIA results more reliable for ancient, poorly preserved organic remains.  相似文献   
8.
9.
10.
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