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   41篇
  免费   1篇
各国政治   6篇
工人农民   5篇
世界政治   8篇
外交国际关系   5篇
法律   13篇
政治理论   5篇
  2024年   1篇
  2023年   1篇
  2021年   1篇
  2020年   1篇
  2018年   2篇
  2017年   2篇
  2016年   2篇
  2015年   1篇
  2013年   14篇
  2012年   1篇
  2011年   1篇
  2009年   1篇
  2008年   1篇
  2007年   3篇
  2006年   3篇
  2005年   3篇
  2004年   1篇
  2003年   1篇
  2002年   1篇
  2000年   1篇
排序方式: 共有42条查询结果,搜索用时 31 毫秒
31.
32.
33.
As natural-resource issues become more complex, particularly in developing-world contexts, there is a growing need for adaptive management solutions. However, the skills necessary to deal with these increasingly complex situations are not always present in many low-income countries. There is also a growing recognition that many capacity-building activities are limited in their effectiveness. This article suggests a problem-based learning (PBL) approach to capacity building. Using the example of training courses developed to help natural-resource management in Guyana, this article illustrates how PBL can help to enhance the capabilities needed for adaptive management.  相似文献   
34.
35.
Thottam J 《Time》2006,167(24):89-90, 93
  相似文献   
36.
37.
The Marrakesh Accords at the seventh meeting of Conference of Parties (COP-7) finally set the Clean Development Mechanism (CDM) wheel moving by establishing a CDM Board and providing some broad guidelines on baselines for the CDM projects. The broad guidelines provide flexibility to develop baselines, which gives rise to prospect of more than one baseline for a project. This has been illustrated with a case study of Zafarana, a wind farm power project. seven possible baselines emerge when applying the broad guidelines included in the Accords indicating the need for detailed guidelines. In the current scenario, a project developer may have to work-out the best course of action considering criteria such as level of complexity and available expertise to develop the baseline, availability of data, expected return etc.  相似文献   
38.
39.
40.
International security concerns about ballistic missile proliferation have frequently highlighted the links between ballistic missiles and space launch vehicles. This article examines the extent of these links through a comprehensive survey of ballistic missile and space rocket programs in regional powers. It notes that missiles were derived from existing space launchers in just a small fraction of these cases. In a slightly greater fraction, space launchers were drawn from existing missile programs. This analysis suggests that though security concerns about space launchers being used as ballistic missiles are valid, the reverse trend, that of ballistic missiles being used as space launch vehicles, cannot be ignored. At the same time, as long as regional powers are limited to short-range and medium-range systems, their missile and space projects would only raise limited missile proliferation and space security concerns.  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