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   5925篇
  免费   190篇
各国政治   468篇
工人农民   158篇
世界政治   631篇
外交国际关系   369篇
法律   2485篇
中国政治   34篇
政治理论   1896篇
综合类   74篇
  2023年   27篇
  2020年   78篇
  2019年   101篇
  2018年   134篇
  2017年   155篇
  2016年   169篇
  2015年   114篇
  2014年   153篇
  2013年   948篇
  2012年   151篇
  2011年   175篇
  2010年   146篇
  2009年   143篇
  2008年   195篇
  2007年   258篇
  2006年   195篇
  2005年   181篇
  2004年   197篇
  2003年   192篇
  2002年   188篇
  2001年   109篇
  2000年   115篇
  1999年   92篇
  1998年   126篇
  1997年   100篇
  1996年   107篇
  1995年   82篇
  1994年   74篇
  1993年   88篇
  1992年   75篇
  1991年   93篇
  1990年   77篇
  1989年   70篇
  1988年   76篇
  1987年   86篇
  1986年   85篇
  1985年   51篇
  1984年   70篇
  1983年   70篇
  1982年   66篇
  1981年   50篇
  1980年   47篇
  1979年   43篇
  1978年   45篇
  1977年   46篇
  1976年   27篇
  1975年   26篇
  1974年   27篇
  1973年   34篇
  1972年   23篇
排序方式: 共有6115条查询结果,搜索用时 7 毫秒
131.
132.
Although agricultural biotechnology has been a seminal reference point in risk perception studies, public awareness of their exposure to risk deriving from this new technology has been minimal at best. However, recent events indicate there may be growing public concern as new variations of this technology appear. Understanding what drives perceptions of benefits from the third generation of the agricultural biotechnology and what determines public worries are keys for the future of this technology. To this end, this study analyzes survey data from the midsouth region of the United States to construct four separate regression models of perceived benefits from and worries over plant‐made industrial products and plant‐made pharmaceuticals. Findings suggest that while prior experience with and knowledge about agricultural biotechnology has an impact on perceptions of benefits and worries, trust in farmers plays a highly important role in determining perceptions.  相似文献   
133.
This paper examines whether foreign direct investment (FDI) influences confidence in commercial contracts in developing countries. While the research on how host countries’ policy environments encourage FDI inflows has flourished, scholars have paid less attention to how the policy environment and local actors’ beliefs might, in turn, be affected by FDI. This is surprising because multinational enterprises are well‐recognized political and economic actors across the world. We expect that their increasing economic salience will influence the policy environments in which they function. By employing an innovative measure of property rights protection – contract‐intensive money – we examine how foreign direct investment influences host countries’ contract‐intensive money ratio in a large panel time series of both developed and developing countries from 1980 to 2002. Our analysis suggests that higher levels of FDI inflows are associated with greater confidence in commercial contracts and, by extension, the protection of property rights in developing countries.  相似文献   
134.
135.
This paper examines Scottish licensing law, in particular the granting of licenses to supply alcoholic liquor. Any application for a license must be granted unless one or more of four conditions are fulfilled. One of these, that the award would lead to overprovision, is the central concern of this study. The paper does not investigate why the consumption and distribution of alcohol are regulated nor why regulatory control takes the form it does. 1 The starting point is rather that regulation exists and takes a particular form. Attention is focused on the operation of this regulatory control and with how it might be improved.In the next section, some of the key features of the licensing law and its appeals are reviewed, establishing the importance of evidence of the presence or otherwise of overprovision. Section II discusses the use of density of licensed premises as a measure of provision, indicates the problems, and argues that a measure might be refined and validated by entering it in an equation explaining the retail price of alcoholic beverages. Section III examines empirically the relationship between price and licensing density.  相似文献   
136.
137.
138.
139.
There has been growing international consensus on issues related to child labour – evident in various declarations, platforms, conventions, programmes of action etc. Child labour is the economic exploitation of children, or performance of any work that is likely to be hazardous or to interfere with the child’s health or physical, mental, spiritual, moral or social development. Poverty is the principal cause of child labour. Mostly the children work to support their families and also for their own survival. Paradoxically, however, child labour further aggravates the poverty syndrome as it usually deprives the children of education and opportunity to acquire skills for developing earning potentials. Other causes of child labour include family indebtedness, the lack or poor quality of schooling or non‐formal education, breakdown of extended family, uneducated parents, local cultural setting, and consumerism. It goes beyond economic exploitation or hazardous employment to include forced labour, trafficking, sexual exploitation and the use of children for the production and trafficking of illegal drugs. This article will ponder the socio‐legal situation of child labour and the large number of legislative enactments regarding labour in India, as well as their realities on the ground.  相似文献   
140.
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