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   87篇
  免费   2篇
  2023年   1篇
  2021年   1篇
  2020年   4篇
  2019年   2篇
  2018年   2篇
  2017年   4篇
  2016年   2篇
  2015年   2篇
  2014年   1篇
  2013年   21篇
  2012年   1篇
  2011年   3篇
  2010年   4篇
  2009年   6篇
  2008年   3篇
  2007年   4篇
  2006年   2篇
  2005年   5篇
  2003年   3篇
  2002年   1篇
  2001年   2篇
  2000年   1篇
  1999年   2篇
  1997年   1篇
  1995年   3篇
  1992年   2篇
  1990年   1篇
  1988年   1篇
  1977年   1篇
  1975年   1篇
  1973年   2篇
排序方式: 共有89条查询结果,搜索用时 31 毫秒
21.
22.
23.
Maps and power     
  相似文献   
24.
25.
26.
27.
This study considers the chemical alteration of archaeological freshwater shell above the water table at the Lyon's Bluff site (22OK520), a single-mound and village complex located in east-central Mississippi, and the changes in trace element concentrations between unfired and fired shell. Thin-section petrography, X-ray diffraction, cathodoluminescence, and scanning electron microscopy analyses were conducted on archaeological shell from four natural layers from Unit 20N20W, over a depth of 80 cm and spanning 450 years. ICP–MS analysis also was conducted on a modern freshwater shell subjected to kiln firing. Microscopy results indicate a pristine aragonite crystal structure in the archaeological samples. ICP–MS data show that certain trace elements within the modern shell maintain their concentration after firing at 500 °C. The broader implications are: 1) that diagenetic alteration does not hinder chemical sourcing of shell at Lyon's Bluff, and 2) that certain trace elements are more reliable than others, namely Sr2+, Al2+, Ba2+, and Mn2+, when conducting trace element provenance studies on fired-shell temper.  相似文献   
28.
One of the commonplaces in critical writing on the 1990s movement known as le jeune cinéma français is the idea that it constituted a new ‘New Wave’. At the same time, the critical reception of the 1990s and 1960s ‘new waves’ could not be more different, with le jeune cinéma français being seen invariably as aesthetically inferior to its 1960s ‘antecedent’. This article examines the two key discursive mechanisms used to link le jeune cinéma français to the Nouvelle Vague, those of political commitment and ‘auteur’ cinema. It is argued that the mechanisms used to construct le jeune cinéma français as a distinct cinematic category become increasingly divorced from the kinds of films actually being made and that it is this discursive disjuncture which is, in part, responsible for its negative critical reception.  相似文献   
29.
ABSTRACT We propose a model where imperfect matching between firms and workers on local labor markets leads to incentives for spatial agglomeration. We show that the occurrence of spatial agglomeration depends on initial size differences in terms of both number of workers and firms. Allowing for dynamics of workers' and firms' location choices, we show that the spatial outcome depends crucially on different dimensions of agents' mobility. The effect of a higher level of human capital on regional disparities depends on whether it makes workers more mobile or more specialized on the labor market.  相似文献   
30.
Community consultation is widely employed in contemporary Australia as a means of improving the formulation and implementation of public policy. However, little is known about the optimal expenditure of effort required for any given consultation. This article develops a rational choice model of community consultation that seeks to encapsulate the major elements involved in optimising consultation effort. The framework is particularly useful for understanding and explaining why actual community consultation processes may be sub-optimal. The rational choice model is then applied to the Living Murray debate over water resources in the Murray-Darling Basin of Australia.  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