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   6篇
  2020年   3篇
  2019年   3篇
  2018年   1篇
  2017年   2篇
  2016年   4篇
  2015年   3篇
  2014年   1篇
  2013年   5篇
  2011年   2篇
  2009年   1篇
  2008年   1篇
  2006年   2篇
  2004年   1篇
  2002年   1篇
  2001年   1篇
  2000年   1篇
  1999年   1篇
  1997年   1篇
  1990年   1篇
  1987年   1篇
  1986年   1篇
  1982年   1篇
  1981年   3篇
排序方式: 共有41条查询结果,搜索用时 15 毫秒
1.
2.
3.
Khan, M.A., Babar, M.A., Akhtar, M., Iliopoulos, G., Rakha, A. & Noor, T., November 2015. Gazella (Bovidae, Ruminantia) remains from the Siwalik Group of Pakistan. Alcheringa 40, xxx–xxx. ISSN 0311-5518.

New gazelle fossils are described from the Siwalik Group of Pakistan. The material includes horncores, maxilla and mandible fragments, and isolated teeth. The available samples are assigned to three Gazella species: Gazella sp. in the Lower Siwalik Subgroup (ca 14.2–11.2 Ma), and G. lydekkeri and G. superba in the Middle Siwalik Subgroup (ca 10.2–3.4 Ma). Based on a review of the Siwalik Group gazelles, G. padriensis is synonymized with G. lydekkeri. Gazella superba Pilgrim, 1939 sensu stricto is a large form and is a valid species of the genus in the Siwalik Group.

Muhammad Akbar Khan [], Muhammad Adeeb Babar [], Muhammad Akhtar [], Allah Rakha [], Tuba Noor [], Abu Bakr Fossil Display & Research Centre, Department of Zoology, Quid-e-Azam Campus, Punjab University (54590), Lahore, Pakistan; George Iliopoulos [], Geology Department of the University of Patras, Patras, Greece.  相似文献   

4.
This paper reflects on the value of cultural policy research, particularly when such research forms part of projects that seek to produce insights or ‘outcomes’ that are useful to non-university research partners. The paper draws from the author’s involvement in a project examining cultural diversity in the arts that was funded as part of the Australian Research Council’s Linkage Project scheme. It addresses Eleonora Belfiore’s provocation that this kind of instrumental cultural policy research routinely amounts to ‘bullshit.’ However, in order to understand the critical function of such research, there needs to be greater attention to the lifeworlds of cultural policy and the multiplicity of the policy-making process. This multiplicity both complicates the possibilities for usefulness in policy research, at the same time that it enables such research to be generative in unpredictable ways.  相似文献   
5.
6.
7.
8.
This paper attempts to understand and operationalize the notion of spatial accessibility (SA) in the context of microfinance. Using geographic information system (GIS) data from northern Bangladesh, we have generated a kernel‐smoothed map and found remarkable spatial variation in access to microcredit. Results suggest that areas isolated from physical infrastructure, administrative establishments, and prone to ecological shocks, exhibit lower degree of SA. Moreover, using an instrumental variable framework, we found that SA has a significant positive impact on household's decision to borrow and on the number of loans: one standard deviation higher SA is associated with a rise in participation probability and average number of microloans by, at least, 3.5 percentage points and 16 percent, respectively.  相似文献   
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