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   503篇
  免费   17篇
  2020年   5篇
  2019年   18篇
  2018年   13篇
  2017年   23篇
  2016年   20篇
  2015年   13篇
  2014年   10篇
  2013年   207篇
  2012年   13篇
  2011年   14篇
  2010年   11篇
  2009年   6篇
  2008年   12篇
  2007年   11篇
  2006年   8篇
  2005年   7篇
  2004年   6篇
  2003年   11篇
  2002年   3篇
  2001年   8篇
  1998年   6篇
  1995年   3篇
  1992年   2篇
  1991年   4篇
  1990年   4篇
  1989年   3篇
  1987年   3篇
  1986年   1篇
  1985年   7篇
  1984年   2篇
  1983年   1篇
  1981年   8篇
  1980年   3篇
  1979年   10篇
  1978年   1篇
  1977年   5篇
  1976年   5篇
  1975年   6篇
  1974年   1篇
  1973年   2篇
  1972年   5篇
  1971年   2篇
  1970年   2篇
  1969年   1篇
  1968年   2篇
  1966年   2篇
  1964年   1篇
  1960年   1篇
  1959年   1篇
  1958年   1篇
排序方式: 共有520条查询结果,搜索用时 15 毫秒
81.
The semantics of pain are an important and interesting aspect of any language. Ancient Greek and Latin had multiple words for pain, which makes scrutinizing different meanings problematic. The ancient physician Galen approached this issue through the use of adjectives to describe the qualities for pain, instead of the words for pain themselves. The medical texts of Celsus and Caelius Aurelianus reveal that Latin also vested particular significance in qualifiers to distinguish between different types of pain. This article looks at the qualifying terms used for pain in the ancient Greek and Latin languages to reveal a sophisticated Greco-Roman vocabulary for pain.  相似文献   
82.
83.
During the pre‐reform era, Chinese state‐owned enterprises (SOEs) operated not only as firms, but also as mini‐welfare states, providing employees with lifetime employment, inexpensive housing, free health care, and pensions. Since China’s market transition began in the late 1970s, however, SOEs have had to bear increasingly heavy burdens for welfare provisions to their employees. The steep increase in welfare spending has not only eroded the base of state revenue, but has also impeded further SOE reforms. To lighten welfare burdens upon SOEs and to remove institutional obstacles to marketization and privatization embedded in the existing welfare system, the Chinese state has imposed many welfare reforms aimed at shifting responsibilities for welfare provision from SOEs to a combination of government, enterprises, communities, and individuals. This article examines the belated welfare reforms in China’s state sector and their impact upon the reform of SOEs. It finds that reform implementation has been sluggish. To achieve the policy goal of welfare reforms, high degrees of state autonomy and capacity are needed.  相似文献   
84.
A classification of census enumeration districts has recently been added to the 1991 British Census 2% Sample of Anonymised Records (SAR). Through the use of multilevel modeling techniques, the area classification information on the SAR is used to investigate geographical differences in unemployment. Previous research has indicated that where a person lives can affect their propensity to unemployment. However, the understanding of these relationships are confounded by the reciprocal nature of the relationship between unemployment, housing, and geographical location. This paper examines the relative importance of the individual, the type of neighborhood of residence, and the local labor market in which one lives in explaining variations in unemployment risk. It also examines the role of housing tenure at an individual and contextual level in mediating this relationship. Two competing hypotheses are evaluated. The first is that local concentrations of unemployment are the result of the process of neighborhood selection. The other suggests there are contextual affects on unemployment risk, which may include access to job opportunities and “concentration effects.” The paper concludes that most neighborhood level variation in unemployment is due to housing market effects, particularly neighborhood selection. As well as offering insights into the relationship between unemployment and geographical location, this paper aims to demonstrate methodological innovations in the analysis of census microdata. In particular it shows how area classifications can be used in conjunction with microdata in a multilevel modeling framework, to get a better understanding of the role of individual and contextual factors in social processes.  相似文献   
85.
Previous analyses of the Massachusetts Miracle and the subsequent evolution of employment in the area have centered in part on sectoral explanations. In this paper these explanations are evaluated with the use of a sectoral-based VAR model of the Boston economy, developed to identify local and national sectoral shocks. The relative importance of these shocks is estimated both for the overall sample and at several turning points in aggregate Boston employment, the latter using historical decompostions.  相似文献   
86.
The Ecuadorian Formative was initially interpreted as a result of long-distance diffusion, and migration, more recent research has changed our perception of the Valdivia, Machalilla, and Chorrera culture complexes. In this analysis, these archaeological investigations are reassessed in order to reevaluate our understanding regarding the nature of these prehistoric cultures. Formative chronologies, distributions, interrelationships are reviewed in the light of Pre-Hispanic occupations in El Oro Province. Previous investigations on the Ecuadorian littoral are examined. Results indicate (1) Valdivia and Machalilla are part of the same ceramic tradition and (2) the interrelationships of these complexes to Late Formative Period ceramic sequences are more complex than previously assumed. (3) A major adaptive shift related to an increased dependence upon agriculture occurred during Valdivia VI–VIII, and continued into the Late Formative with the widespread distribution of Chorrera related material culture. (4) Long-distance interaction with the Ecuadorian highlands resulted in the spread of what may be termed a Chorrera horizon and formed the basis of subsequent Andean cosmology where it was symbolically represented according to local and regional artistic canons and over a vast area of Andean South America.  相似文献   
87.
Consumer city   总被引:25,自引:0,他引:25  
Urban economics has traditionally viewed cities as having advantagesin production and disadvantages in consumption. We argue thatthe role of urban density in facilitating consumption is extremelyimportant and understudied. As firms become more mobile, thesuccess of cities hinges more and more on cities' role as centresof consumption. Empirically, we find that high amenity citieshave grown faster than low amenity cities. Urban rents havegone up faster than urban wages, suggesting that the demandfor living in cities has risen for reasons beyond rising wages.The rise of reverse commuting suggests the same consumer cityphenomena.l  相似文献   
88.
89.
90.
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