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   1599篇
  免费   19篇
  2024年   2篇
  2023年   5篇
  2021年   2篇
  2020年   8篇
  2019年   9篇
  2018年   282篇
  2017年   206篇
  2016年   248篇
  2015年   14篇
  2014年   19篇
  2013年   75篇
  2012年   37篇
  2011年   173篇
  2010年   186篇
  2009年   40篇
  2008年   80篇
  2007年   76篇
  2006年   7篇
  2005年   34篇
  2004年   11篇
  2003年   8篇
  2002年   6篇
  2001年   4篇
  2000年   4篇
  1999年   6篇
  1998年   8篇
  1997年   3篇
  1996年   3篇
  1995年   2篇
  1994年   4篇
  1993年   6篇
  1992年   6篇
  1991年   2篇
  1990年   3篇
  1989年   2篇
  1988年   2篇
  1986年   2篇
  1985年   3篇
  1984年   2篇
  1983年   2篇
  1980年   2篇
  1976年   3篇
  1975年   1篇
  1974年   5篇
  1973年   3篇
  1972年   2篇
  1971年   1篇
  1969年   1篇
  1968年   1篇
  1954年   2篇
排序方式: 共有1618条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
Debates about the future of small municipalities in Canada are set against a backdrop of economic, political, and social restructuring processes that have displaced former state investment policies in favour of neoliberal public policy approaches. Small municipalities struggle with outdated financial and governance structures and a provincial public policy agenda that asks them to become more creative, innovative, and “entrepreneurial” in their approach and responsibilities. Drawing upon key informant interviews with eight case studies in British Columbia, Canada, this research examines the tensions between municipal reforms mandated by the provincial government over the past 30 years and commensurate fiscal levers and capacities in place to address these broadening responsibilities for small municipalities in volatile staples-dependent regions. Our findings demonstrate how successive provincial governments have mobilized New Public Management objectives through a host of legislative and regulatory changes that have increased the responsibilities and requirements on local governments without commensurate fiscal or jurisdictional capacity.  相似文献   
5.
6.
7.
We review evidence from human biology—paleopathological and isotopic paleodietary studies on ancient Maya skeletons—to assess the validity of ecological models of the Classic Maya collapse, in which elevated disease and deteriorating diet are commonly assumed. To be upheld, the health arguments of ecological models require that the Maya disease burden (1) was greater than that for many other societies and (2) increased over the span of occupation. The dietary argument requires (1) consistent change in diet from Preclassic and Early Classic Periods to the Terminal Classic and (2) increasing social divergence in diet. A correlation between diet and disease is necessary to link these arguments. Neither pathology nor isotopic data consistently support these criteria. Instead, it appears that local environmental and political factors created diversity in both disease burden and diet. In view of the human biological data, we are skeptical of ecological models as generalized explanations for the abandonment of Classic Maya sites in the southern lowlands.  相似文献   
8.
9.
The 1970's has been a period in which three trends have coincided: housing prices have been escalating, wives have continued to enter the labor force, and legislation prohibiting discrimination in mortgage markets on the basis of sex and marital status has been enacted. In this paper, we examine the role of the two-earner family–one in which both husband and wife work–in the housing market of the 1970's, and the interrelation of this household type with other factors shaping the current high demand for housing. We also speculate on the role of the two-earner family in the housing market of the 1980's. We conclude that two-earner families are in a position to increase their housing outlays in the future, that the continued growth in the number of two-earner families will add to future housing demand, but that many two-earner families may be divorced couples of the future. This suggests that, while there will be a strong impact on single-family home demand, there will also be some restructuring of demand toward rental housing and cooperative/condominium ownership.  相似文献   
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