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   18627篇
  免费   505篇
管理学   2225篇
民族学   103篇
人才学   6篇
人口学   1761篇
丛书文集   106篇
教育普及   2篇
理论方法论   1706篇
现状及发展   1篇
综合类   247篇
社会学   9347篇
统计学   3628篇
  2023年   92篇
  2022年   77篇
  2021年   99篇
  2020年   287篇
  2019年   458篇
  2018年   465篇
  2017年   645篇
  2016年   454篇
  2015年   353篇
  2014年   436篇
  2013年   3188篇
  2012年   663篇
  2011年   577篇
  2010年   458篇
  2009年   433篇
  2008年   505篇
  2007年   499篇
  2006年   459篇
  2005年   424篇
  2004年   420篇
  2003年   386篇
  2002年   400篇
  2001年   477篇
  2000年   390篇
  1999年   384篇
  1998年   310篇
  1997年   287篇
  1996年   290篇
  1995年   276篇
  1994年   261篇
  1993年   251篇
  1992年   292篇
  1991年   292篇
  1990年   265篇
  1989年   258篇
  1988年   249篇
  1987年   228篇
  1986年   223篇
  1985年   255篇
  1984年   235篇
  1983年   240篇
  1982年   185篇
  1981年   156篇
  1980年   174篇
  1979年   176篇
  1978年   147篇
  1977年   145篇
  1976年   128篇
  1975年   119篇
  1974年   99篇
排序方式: 共有10000条查询结果,搜索用时 765 毫秒
341.
342.
"Comparative analysis of out-migration [in the United States]...reveals substantial ethnic differentials. Part of the variation results from group compositional differences in social class and other characteristics normally related to migration, particularly age, education and local birth. Equally important, however, are indicators of social and economic bonds." The data concern 3,345 adults who were first interviewed between 1967 and 1969 in Rhode Island and were reinterviewed in 1970, 1971, and 1979. "The results suggest that ethnic groups characterized by a dense network of social and economic ties do not sponsor out-migration, which has been the emphasis of many past studies of chain migration and migrant assimilation. Rather, they deter out-migration by providing alternative opportunities within the ethnic community."  相似文献   
343.
344.
A detailed program for the improvement of population statistics and for the development of demographic research is presented, with particular reference to the USSR. Topics covered include global and regional population projections, special surveys on demographic behavior, and the need for improvements in migration data.  相似文献   
345.
Adoption of the most effective methods of contraception requires individual decision-making and negotiation with contraceptive providers. In order to take account of both behavioral elements, a two-dimensional framework for understanding contraceptive adoption and continuation by unmarried young is proposed, incorporating a "social-psychological model" of individual decision-making and an "interpersonal model" of factors affecting provider-client interaction. The social-psychological model is based on an earlier value-expectancy theory of behavior motivation as applied to health-related behaviors. The interpersonal model is derived from conflict-bargaining perspectives on professional-client interaction; it is suggested that expectations for this interaction are based on a limited number of internalized "models": the "professional"; the "bureaucratic"; the "commercial"; and the "parental." Insofar as client and professional "models" disagree, communication may break down and client understanding and/or acceptance of provider advice cannot be assured. The components of the social-psychological and interpersonal models are described in detail, and a combined framework is proposed.  相似文献   
346.
Abstract In this paper the robustness of Brass's child-survivorship indirect mortality estimation technique is investigated. An analytical method is developed for studying the error or bias caused in indirect mortality estimates by poor data, badly chosen model functions, and specific demographic assumptions that are often violated in practice. The resulting analytical expressions give insight into the rationale of indirect methods, the conditions under which they are robust, and the magnitude of errors that occur when specific assumptions are violated.  相似文献   
347.
348.
All for health     
Jayatilaka AD 《Zambezia》1983,11(1):15-35
  相似文献   
349.
350.
Patients typically express high rates of satisfaction with their mental health care. This finding and the lack of well controlled studies on patient satisfaction in the literature underscore the need for meaningful guidelines for clinicians and program evaluators in interpreting patient satisfaction data. To address this problem a meta-analysis was undertaken to establish norms on patient satisfaction for various types of mental health programs. Programs were categorized according to three dimensions: inpatient vs. outpatient vs. residential care; chronic vs. non-chronic; and conventional vs. innovative. Meta-analysis procedures were modified to accommodate the single-group study designs that dominate the literature. The analysis revealed that chronic patients express less satisfaction with their treatment compared to non-chronic patients. Innovative programs are viewed more positively than conventional ones. No differences were found in rates of patient satisfaction between inpatient and outpatient programs. Acceptably reliable norms and confidence intervals of patient satisfaction were established for conventional inpatient programs serving either chronic or non-chronic patients; conventional outpatient programs for non-chronic patients; and for all programs combined according to chronic vs. non-chronic, inpatient vs. outpatient, and conventional vs. innovative. However, data were insufficient to compute norms for other program types. The norms thus established can be used for comparative purposes by program evaluators. A cumulative, national data base on patient satisfaction is recommended to further refine these norms.  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