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   3045篇
  免费   129篇
  2020年   31篇
  2019年   65篇
  2018年   70篇
  2017年   104篇
  2016年   91篇
  2015年   73篇
  2014年   77篇
  2013年   1150篇
  2012年   57篇
  2011年   75篇
  2010年   50篇
  2009年   66篇
  2008年   49篇
  2007年   69篇
  2006年   45篇
  2005年   38篇
  2004年   32篇
  2003年   33篇
  2002年   46篇
  2001年   31篇
  2000年   38篇
  1999年   30篇
  1998年   40篇
  1997年   51篇
  1996年   21篇
  1995年   27篇
  1994年   18篇
  1993年   23篇
  1992年   23篇
  1991年   15篇
  1990年   23篇
  1989年   15篇
  1988年   24篇
  1987年   27篇
  1986年   21篇
  1985年   34篇
  1984年   40篇
  1983年   41篇
  1982年   43篇
  1981年   35篇
  1980年   33篇
  1979年   41篇
  1978年   38篇
  1977年   40篇
  1976年   31篇
  1975年   30篇
  1974年   12篇
  1973年   22篇
  1972年   16篇
  1971年   11篇
排序方式: 共有3174条查询结果,搜索用时 15 毫秒
11.
12.
ABSTRACT. This paper uses a large data base to study metropolitan labor demand functions. The data are disaggregated by two-digit SICs in manufacturing for SMS As, and are corrected for changing SMSA boundaries. Labor demand elasticities are estimated for factor and commodity prices, transportation costs, state and local taxes and expenditures, and production-function shifters. Estimates from different years allow one to test Le Chatelier's principle in the context of interregional change.  相似文献   
13.
14.
15.
The NSW doctors’ dispute 1984–85 has had a lasting effect on the Australian health care system. Militant surgeons were effective in securing some modifications to regulations and administrative arrangements governing the role and remuneration of certain groups of doctors in NSW public hospitals and some changes to the federal government's Medicare scheme.

This paper examines the causes, actors, issues and outcome of the dispute. The key to understanding the dispute is a knowledge of both the specific issues debated by militant doctors and the federal and NSW Labor governments and the broader historical forces that have shaped the politics of national health insurance throughout the twentieth century. In contrast to media reports, the outcome of the dispute is interpreted as a compromise rather than a victory for the doctors. It is further argued that a theoretical generalisation formulated by two American political scientists, Marmor and Thomas, about disputes between doctors and governments over payment methods is only partially useful in explaining the outcome.

Two prominent and well‐documented historical themes from the politics of national health insurance in Australia — namely, the resistance of sections of the medical profession to any contraction of the private market for medicine and the fragmentation of the organised medical profession during periods of disputation with governments at the state and federal level — are discussed. These themes, and some generalisations about the capacity of the medical profession to influence public policy outcomes, are illuminated by the study.  相似文献   

16.
17.
18.
The technology of Roman harbours   总被引:2,自引:0,他引:2  
  相似文献   
19.
Village societies in rural Fiji have often been studied in terms of a dichotomy between traditional village communalism and independent galala individualism. This was especially so in the 1960s, at a time when government efforts to promote individualist Fijian agriculture led to the creation of a number of resettlement schemes based on the peasant model. Social scientists hailed the galala movement as a fundamental and progressive process of change in Fijian society. However, recent evidence and the demise of regulations which institutionalised galala point to the present lack of distinction between galala and villagers. Indeed, there is considerable confusion within some villages over how galala should be defined and it seems to be much more a matter of spatial location of residence than any attitudinal or economic break with communalism.  相似文献   
20.
The soluble and exchangeable ions for a soil profile from the Roonka archaeological site. Lower Murray Basin, South Australia, are compared with the total elemental content of the soils. Since the chemical composition of post-mortem ionic substitution phases and secondary minerals in archaeological bone will depend on the availability of ions to the soil solution under field conditions, it is suggested that models addressing diagenesis in bone employ soluble and exchangeable ions rather than total elemental soil data.  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