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   9327篇
  免费   326篇
各国政治   624篇
工人农民   377篇
世界政治   731篇
外交国际关系   417篇
法律   5337篇
中国共产党   2篇
中国政治   144篇
政治理论   1932篇
综合类   89篇
  2020年   133篇
  2019年   157篇
  2018年   221篇
  2017年   231篇
  2016年   247篇
  2015年   218篇
  2014年   213篇
  2013年   1147篇
  2012年   252篇
  2011年   321篇
  2010年   232篇
  2009年   252篇
  2008年   259篇
  2007年   233篇
  2006年   237篇
  2005年   204篇
  2004年   226篇
  2003年   245篇
  2002年   171篇
  2001年   357篇
  2000年   329篇
  1999年   294篇
  1998年   145篇
  1997年   105篇
  1996年   111篇
  1995年   100篇
  1994年   108篇
  1993年   104篇
  1992年   161篇
  1991年   156篇
  1990年   148篇
  1989年   138篇
  1988年   158篇
  1987年   157篇
  1986年   160篇
  1985年   146篇
  1984年   145篇
  1983年   155篇
  1982年   92篇
  1981年   68篇
  1980年   80篇
  1979年   98篇
  1978年   78篇
  1977年   66篇
  1976年   68篇
  1975年   58篇
  1974年   49篇
  1972年   53篇
  1971年   54篇
  1969年   54篇
排序方式: 共有9653条查询结果,搜索用时 15 毫秒
211.
An attempt is made to explain the persistence of high bridewealth in Lesotho. It is argued that the structural conditions of its persistence have changed over time, and a macroeconomic perspective is developed in which to comprehend its contemporary significance. Bridewealth (Bohali) transfers in Lesotho at this time, at least in the Lowlands, are derived largely from the cash earnings of migrants and are no longer provided in livestock by a variety of agnatic and matrilateral kin on the side of the husband and distributed among a similar variety of kin on the wife's side. They are drawn from and contribute to a general subsistence fund concentrated largely within the household. To the extent that bohali transfers constitute items of expenditures for migrants and items of income for the heads of women's natal households, they effect a redistribution of income in favor of the senior generation, which thus has a clear interest incontinuing to demand high bohali. In addition migrants have an interest in substantially fulfilling their bohali obligations. Their own longterm security is best assured by establishing access to legitimate dependents within a rural household. Given a high rate of conjugal dissociation, a consequence of oscillating migration, the migrant must balance 2 considerations: the rationality of investment in the next generation, of the sort that bohali transfers represent, is qualified by an initially tenuous attachment to the rural household where his dependents reside; and so long as bohali remains the idiom in which interhousehold competition for the earning capacity of the next generation is rationalized and resolved, such investments continues to be the only way in which he can legitimately assert his own interests against those of his affines. The household viability in Lesotho depends on control over the earning capacity of migrants and over the productive and reproductive capacities of relict women. These are the structural conditions for the persistence of high bridewealth. Bohali is sustained by the realities of housekeeping, not merely by the ideology of keeping house. 3 detailed household profiles presented in an appendix give ethnographic sustenance to propositions concerning high bridewealth, migrant labor, and the position of women.  相似文献   
212.
The specific gravity and buoyancy of 98 men were calculated at various lung volumes. The data indicated that all subjects would be capable of floating in either freshwater or seawater at total lung capacity. At functional residual capacity, the value approximating the lung volume of a recently dead body, 69% of the subjects would float in seawater, whereas only 7% would float in freshwater. Results of this study indicate that while drowned bodies are more likely to sink than bodies dead of other causes, no conclusion regarding the cause of death can be made on the basis of whether bodies float or sink.  相似文献   
213.
214.
Public policies to increase the efficiency of state and local governments through fostering the use of new technologies are based, implicitly at least, on theories of diffusion. Existing theories of diffusion have been found to be deficient. This paper presents an approach to the diffusion of technological innovations in state and local governments organized around the concept of diffusion milieus.A diffusion milieu contains those elements external to the organization which bring pressure to bear on the organization to alter its existing practices, which define the range of feasible alternatives to these practices, and which condition the information flow on the performance characteristics of the proposed innovation(s). These milieu components are then filtered through the internal decision-making process(es) of the organization to produce a decision to accept or reject the innovation(s). More specifically, the milieu contains (1) the specific nature of the demands upon the agency to change behavior (performance gaps), (2) the supply of alternatives to existing practices (technological change), (3) agency-executive relationships, (4) the activities of suppliers in marketing innovations, (5) the resources available to the agency to acquire new techniques, (6) the characteristics of the knowledge infrastructure which affect the search behavior and the degree of uncertainty associated with adopting new techniques, (7) the impact of intergovernmental relationships, and (8) citizen demands. The components of the diffusion milieu are then (9) related to a set of agency decision-rules concerning the adoption of new techniques.The rate of diffusion in each field will depend upon themagnitude of the components and on thelinkages between them.Functional fields differ in both respects.Research for this paper was supported by a grant from the National Science Foundation, Office of R & D Assessment. We have benefited from the helpful comments of Professor Marvin Rozen, an anonymous referee and the research assistance of Ms. Lee Ann Kozak. The views expressed in this paper are the sole responsibility of the authors. An earlier version of this paper was presented at the 1975 American Political Science Association meetings.  相似文献   
215.
216.
217.
218.
219.
This study examined the nature and correlates of different patterns of perceived control in adolescents' relationships with their best friends. Participants included firstborn adolescents (M = 14.94 years), their younger siblings (M = 12.44 years) and both their mothers and fathers in 163 families as well as a best friend of each adolescent (M = 15 years). Data were collected from family members during home visits regarding adolescents' family relationships, friendships, and psychosocial adjustment; time use data were gathered during a series of 7 nightly phone interviews. Information was obtained from best friends during a brief phone interview. We developed a typology of 3 different patterns of perceived friendship control based on the combination of adolescents' and their best friends' ratings of relational control. Patterns of control in adolescents' friendships were associated with the distribution of control in both parents' marriages and adolescents' sibling relationships. Further analyses, designed to test developmental predictions, revealed connections between friendship control and other qualities of adolescents' friendships (i.e., intimacy, conflict, perspective-taking).  相似文献   
220.
The thaw of the Cold War ended the chess game between the superpowers and seemingly gave new momentum to the revival and spread of liberal democracy and its corollary, capitalism. Just as missionaries once offered Christianity to "save" colonised peoples, democracy has become the new gospel promising "salvation". Both donor and recipient countries appeal to democracy, hoping that it will reverse decades of misfortune. Donor nations and multilateral financial institutions preach democratic governance. "Born again democratic" national leaders in the South who are intent on clinging to power attend to their sermons. None appear to have a genuine faith in democracy. While some nations and NGOs do give altruistically, most use foreign aid as another means of pursuing their national interest. Democracy is an elastic concept. Indeed it seems, at least at this point, that the new gospel of democracy is but a convenient tool used by different players for they own selfish reasons.  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