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   11898篇
  免费   305篇
管理学   1472篇
民族学   50篇
人口学   952篇
丛书文集   65篇
教育普及   3篇
理论方法论   1037篇
综合类   120篇
社会学   6384篇
统计学   2120篇
  2023年   58篇
  2021年   65篇
  2020年   145篇
  2019年   217篇
  2018年   259篇
  2017年   348篇
  2016年   256篇
  2015年   196篇
  2014年   268篇
  2013年   2443篇
  2012年   326篇
  2011年   321篇
  2010年   233篇
  2009年   210篇
  2008年   240篇
  2007年   236篇
  2006年   269篇
  2005年   233篇
  2004年   190篇
  2003年   177篇
  2002年   198篇
  2001年   286篇
  2000年   266篇
  1999年   282篇
  1998年   179篇
  1997年   157篇
  1996年   220篇
  1995年   212篇
  1994年   220篇
  1993年   223篇
  1992年   239篇
  1991年   221篇
  1990年   243篇
  1989年   213篇
  1988年   202篇
  1987年   182篇
  1986年   167篇
  1985年   175篇
  1984年   180篇
  1983年   126篇
  1982年   126篇
  1981年   111篇
  1980年   120篇
  1979年   118篇
  1978年   101篇
  1977年   86篇
  1976年   82篇
  1975年   90篇
  1974年   58篇
  1973年   57篇
排序方式: 共有10000条查询结果,搜索用时 288 毫秒
241.
242.
243.
Despite rapid expansion in the maternal and child health and family planning services, there have been few attempts made to study the extent of utilisation of these services and their impact. The present study reports a simple method evolved in the quantification of utilisation of maternal care services (called maternal care receptivity - MCR), the relationship of factors such as age, parity, caste of the women and the distance of the health centre on the MCR and the impact of MCR on perinatal and neonatal mortalities. An inverse relationship was observed between MCR and perinatal and neonatal mortality rates and the two rates were three times less among babies born to mothers with high MCR scores compared to those with poor MCR scores.  相似文献   
244.
245.
The author describes two surveys carried out in 1978 and 1980 in Poland that were concerned with temporary residence, defined as residence for more than two months. The results of the surveys are presented, including data on age, sex, and urban or rural residence.  相似文献   
246.
This article examines in depth the strategic implications for those States who have recently declared 200 mile off-shore resource management zones. The authors, in a comprehensive and stimulating paper, examine the implications of so-calling a nation's offshore limit. It is an appropriate name for a nation's offshore limit since the primary reason for many nations declaring a 200 mile limit has been the abundance of resources which have often been found within those limits either in the sea or the sea bed itself. This paper reviews the current background of off-shore resource management and outlines suitable roles for adoption by the coastal States in the management of their off-shore renewable and non-renewable resources. Furthermore, it examines the contentious but nonetheless central issue of the benefits and costs which accrue through coastal state jurisdiction. The authors also examine an appropriate resource management process and the implications of resource use conflicts within the off shore limit as well as defining these conflicts on the basis of ‘stakeholder’ interests and introduces a new concept of the maximization of economic equity amongst competing stakeholders. The problem remains that the measurement of economic equity perhaps leaves the States concerned within a situation of only having defined the problem; the political process has then to deal with any reallocation measures that may be deemed appropriate.  相似文献   
247.
As a guide for how to select a new executive director, a family agency adopted the search committee process from higher education. The approach included clarifying agency goals and the director's qualifications, a board-staff screening, and interviews held jointly with public representatives before final board selection.  相似文献   
248.
Summary Most abortions in Polish hospitals and clinics are performed on social indications. In the 22 administrative areas of Poland, the high rates of divorce and large proportions of total population employed in non-agricultural pursuits reflect the individualistic approach to family planning which is characteristic of present-day urban society. Industrialization is disruptive to the normal functioning of the country's traditionally large families. In addition, the gross reproduction rate increases directly with the proportion of the peasant population in 17 voivodships and five large cities of Poland, whereas in the urban sector the gross reproduction rate has fallen below replacement level in the past few years. Rural birth rates will continue to decline. In view of increasing needs for future manpower, population policy aimed at increasing births through incentives to prospective mothers may achieve a limited degree of success in cities only among the educated segments of the female population.  相似文献   
249.
250.
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