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   12115篇
  免费   393篇
各国政治   480篇
工人农民   574篇
世界政治   843篇
外交国际关系   474篇
法律   7317篇
中国共产党   34篇
中国政治   150篇
政治理论   2488篇
综合类   148篇
  2021年   68篇
  2020年   172篇
  2019年   165篇
  2018年   254篇
  2017年   304篇
  2016年   341篇
  2015年   266篇
  2014年   277篇
  2013年   1191篇
  2012年   280篇
  2011年   339篇
  2010年   261篇
  2009年   347篇
  2008年   396篇
  2007年   410篇
  2006年   392篇
  2005年   353篇
  2004年   379篇
  2003年   301篇
  2002年   290篇
  2001年   388篇
  2000年   372篇
  1999年   291篇
  1998年   197篇
  1997年   150篇
  1996年   168篇
  1995年   147篇
  1994年   163篇
  1993年   169篇
  1992年   224篇
  1991年   269篇
  1990年   240篇
  1989年   222篇
  1988年   246篇
  1987年   227篇
  1986年   238篇
  1985年   212篇
  1984年   183篇
  1983年   171篇
  1982年   112篇
  1981年   136篇
  1980年   115篇
  1979年   113篇
  1978年   95篇
  1977年   86篇
  1976年   72篇
  1975年   68篇
  1974年   69篇
  1973年   84篇
  1971年   52篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
Past research has largely ignored the developmental changes within the child that account for the association between parenting and risk for delinquency. We used structural equation modeling and data from a longitudinal study of several hundred African‐American families to test the contentions of various theories regarding the sociocognitive and emotional factors that mediate the impact of parental behavior on a youth's risk for delinquency. Our findings largely supported the theories. The impact of monitoring/discipline was indirect through low self‐control and acceptance of deviant norms, whereas the effect of hostility/ rejection was indirect through low self‐control, hostile view of relationships, and acceptance of deviant norms. These two dimensions of parenting were no longer related either to affiliation with deviant peers or to conduct problems once the effects of these psychological characteristics were taken into account; the impact of these parenting practices was completely mediated by these four cognitive/affective variables. Contrary to expectation, however, these psychological factors did not mediate any of the relationship between caretaker involvement in antisocial behavior and child conduct problems.  相似文献   
22.
Divorce, although a statistical norm, is a developmental trauma to the children involved. This article looks at the two-camp emotional environment of a divorcing family and its effect on the formation of a child's identity. By examining developmental ages, chosen according to divorce research, the author attempts to show how the interspouse emotional cathexes negatively affect a child's sense of self in ways specific to the child's age at the divorce.  相似文献   
23.
国际环境争端解决机制研究   总被引:4,自引:0,他引:4  
解决和避免国际环境争端已成为近年来备受关注的论题。无论是在1992年联合国环境与发展大会期间还是新近多边环境协定的谈判和实施过程中,国际环境法的遵守问题都引起了各国政府和国际法学者的关注。多边环境条约、联合国海洋法公约以及WTO规则,是国际环境争端解决机制的主要法律渊源。在一定范围内,这些多边条约和条约体系相互影响、相互推动,又相互矛盾和冲突,呈现出国际环境争端解决机制的独特发展形态。  相似文献   
24.
Decomposition studies were conducted using two carcasses of domestic pigs, Sus scrofa L., 8.4 kg and 15.1 kg in weight, to determine the effects of carcass size on the rate of decomposition, composition of the arthropod fauna, and succession patterns. A total of 46 arthropod taxa were recovered during this study. No size-related differences were observed between carcasses with respect to composition of the arthropod fauna or patterns of succession. A greater number of arthropods were observed attracted to the 15.1-kg carcass, and the rate of decomposition observed was more rapid for the 15.1-kg carcass than for the 8.4-kg carcass. Internal temperatures of the 8.4-kg carcass were more directly related to external ambient temperatures during the fresh and bloated stages of decomposition. During the decay stage, both carcasses generated internal temperatures significantly above ambient temperatures. Following this stage, internal temperatures fell to approximate ambient temperatures during the postdecay and remains stages.  相似文献   
25.
26.
27.
This paper argues that corruption is a product of self-aggrandizement; of unrealistically low remuneration which makes it impossible for public servants to live within their legitimate means; and of a closed political system which inevitably tends to exclude aggregated interests'. Corruption leads to loss of much needed revenue and human talent for development, distorts priorities for public policy, and shifts scarce resources away from the public interest. The mutual distrust that results among the different sections of society, and the growth of despondency in the general public, are incompatible with the requirements for successful public policy. The main theme running through the paper is that political instability, corruption and underdevelopment are mutually reinforcing. The paper finally outlines certain measures that need to be taken in order to clear the path for sustained growth and development.  相似文献   
28.
This article examines constraints in development bureaucracies in intensifying the use of microcomputers as they move beyond processing applications to analysing applications. The work is based on the experience of several ministries of the Government of Kenya. Processing applications involve throughput of data and are relatively simple. Analysing applications, in contrast, are more complex and include data assembly, sensitivity analysis, and modelling. The article argues that processing applications are more compatible with the administrative cultures, bureaucratic functions, personnel skill levels and organizational structures of development bureaucracies. Analysing applications are less compatible because they require a level of training and motivation uncommon in development bureaucracies. Analysing applications are further thwarted by constraints in the supply of relevant information and the lack of demand for analysis by decision-makers. A four-cell matrix is developed which explains these constraints. The article concludes with several recommendations for encouraging microcomputer-based analysis, but cautions that processing applications will continue to dominate for the foreseeable future.  相似文献   
29.
30.
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