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   6233篇
  免费   283篇
  国内免费   1篇
各国政治   364篇
工人农民   31篇
世界政治   709篇
外交国际关系   799篇
法律   3110篇
中国共产党   315篇
中国政治   575篇
政治理论   258篇
综合类   356篇
  2023年   28篇
  2022年   30篇
  2021年   27篇
  2020年   29篇
  2019年   40篇
  2018年   51篇
  2016年   34篇
  2015年   37篇
  2014年   166篇
  2013年   116篇
  2012年   427篇
  2011年   410篇
  2010年   205篇
  2009年   166篇
  2008年   297篇
  2007年   348篇
  2006年   335篇
  2005年   323篇
  2004年   288篇
  2003年   339篇
  2002年   316篇
  2001年   226篇
  2000年   216篇
  1999年   141篇
  1998年   96篇
  1997年   77篇
  1996年   74篇
  1995年   99篇
  1994年   99篇
  1993年   72篇
  1992年   65篇
  1991年   70篇
  1990年   59篇
  1989年   71篇
  1988年   110篇
  1987年   89篇
  1986年   93篇
  1985年   97篇
  1984年   95篇
  1983年   99篇
  1982年   67篇
  1981年   66篇
  1980年   94篇
  1979年   43篇
  1977年   29篇
  1973年   20篇
  1964年   22篇
  1962年   18篇
  1961年   17篇
  1959年   16篇
排序方式: 共有6517条查询结果,搜索用时 0 毫秒
81.
82.
"Social and economic indicators depict Mexico as a country of intermediate development. It is also in intermediate stages of demographic and epidemiologic transitions. When these traits are translated into socio-demographic perspectives, all projections indicate that for the next fifty years we can expect: (i) percentage decreases in child and teen-age populations, (ii) large percentage and absolute increases in adult population, and (iii) important increases in the elderly population.... Among elders death due to infectious diseases is less common than within other sectors of [the] population. Mortality associated with chronic ailments has increased, with recent and remarkable changes during the last twenty years. This transformation is not evenly distributed. It is more accelerated in developed and urban areas as contrasted with the rural and less developed." (SUMMARY IN ENG)  相似文献   
83.
84.
The 1994 International Conference on Population and Development (ICPD) opened the dawn of a new era in discourse over population. A newfound consensus was reached between North and South which was not there during the two previous world population conferences in Bucharest and Mexico. While consensus was reached at the 1994 ICPD on the need for action, however, debate over population is far from settled. Causes of population growth, the links between population growth and economic development, and environmental degradation remain controversial topics. The authors analyze the basis of the ICPD consensus at the local, national, and global levels. They also compare the development discourse to the political discourse over population. Both discourses emphasize different aspects of a far more complex reality. The question is which discourse to choose as a basis for drawing policy recommendations. The emerging view on the way to Cairo was that consensus would be achieved on the basis of development discourse. Success on the action plan rests upon the belief that more contraceptives, more health services, and more schools will be enough to reduce fertility rates. The political discourse, however, is better than the development discourse as a basis for policy making because it stresses the need for integration rather than running the risk of exclusion. The political discourse is also more demanding.  相似文献   
85.
86.
Tort reform is controversial because of the need to balance cost considerations with the legitimate needs of plaintiffs who have suffered malpractice injury. In addition, proponents and opponents of the different proposals often formulate their positions based largely on anecdotal evidence and concerns of special interest groups rather than careful studies. As a result, it may be some time before malpractice reform is addressed comprehensively at the federal level, leaving the states to their own reform devices.  相似文献   
87.
88.
"This work...examines the cultural dimension of sexuality and fertility of women from [low-income] sectors in Peru. It intends to explain the cultural processes that fall into the intermediate variables of fertility, such as marriage rate, contraception, breastfeeding and...abortion. These dimensions of sexual and reproductive life are analyzed according to two explanatory dimensions: generation and cultural context of socialization. The general hypothesis is that a cultural process of homogenization of the values and behaviors has been taking place over sexuality, in such a way that the younger generations will show similar standard behaviors and values no matter their context of socialization; in the meantime, in the older groups there will exist contextual differences in these dimensions." (SUMMARY IN ENG)  相似文献   
89.
"A bibliographical review serves to analyze the role of urban growth in patterns of international labor-force migration, as well as the effect of this migration on the development of the countries of origin, especially on their cities. While the review confirms the general idea that international migrants are either peasants or highly qualified personnel, it also shows that qualified workers are increasingly involved in international labor movements and that a great part of them come from large cities. It is to be expected that in these circumstances large cities of the countries of origin will become more integrated to international migratory systems." (SUMMARY IN ENG)  相似文献   
90.
123 out of 850 suicides that occurred in the Canton of Geneva between 1980 and 1989 were suicides by submersion. 75 women and 48 men committed this kind of suicide. 89 victims (57 women and 32 men) were older than 40 years. In all cases the spatial distance between the residence of the suicides and the nearest river or lake was determined; a correlation with the tendency to commit suicide by drowning was not evident. More than geographical factors, the psychological influences have to be considered.  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