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   11627篇
  免费   354篇
  国内免费   3篇
管理学   1570篇
民族学   71篇
人才学   3篇
人口学   1042篇
丛书文集   77篇
理论方法论   1257篇
综合类   242篇
社会学   6094篇
统计学   1628篇
  2020年   174篇
  2019年   273篇
  2018年   298篇
  2017年   420篇
  2016年   292篇
  2015年   227篇
  2014年   284篇
  2013年   1916篇
  2012年   389篇
  2011年   380篇
  2010年   294篇
  2009年   287篇
  2008年   297篇
  2007年   333篇
  2006年   295篇
  2005年   288篇
  2004年   276篇
  2003年   212篇
  2002年   245篇
  2001年   295篇
  2000年   259篇
  1999年   225篇
  1998年   181篇
  1997年   170篇
  1996年   168篇
  1995年   157篇
  1994年   164篇
  1993年   162篇
  1992年   155篇
  1991年   159篇
  1990年   166篇
  1989年   156篇
  1988年   144篇
  1987年   154篇
  1986年   117篇
  1985年   150篇
  1984年   161篇
  1983年   147篇
  1982年   126篇
  1981年   93篇
  1980年   115篇
  1979年   114篇
  1978年   105篇
  1977年   87篇
  1976年   94篇
  1975年   100篇
  1974年   94篇
  1973年   72篇
  1972年   62篇
  1971年   56篇
排序方式: 共有10000条查询结果,搜索用时 845 毫秒
11.
Epidemiological data show high rates of suicide attempts among adolescent Latinas. Few studies have addressed the psychosocial, cultural and family correlates of suicide attempts among this age group of a rapidly growing population. The authors studied 31 adolescent Hispanic females who were receiving mental health services; 14 girls had attempted suicide in the previous five years and 17 had never attempted suicide. The two groups of girls did not differ significantly with respect to demographic profiles, levels of depression, family type, acculturation, or self-esteem. However, as hypothesized, the mutuality between girls and their mothers was lower among suicide attempters. Maladaptive coping skills of withdrawal and wishful thinking were more commonly used by attempters, and non-attempters used emotional regulation and problem-solving more frequently. Findings are discussed within the context of the empirical and theoretical literature and implications for practice are considered.  相似文献   
12.
A review of the US ‘program evaluation standards’ (PES), undertaken in a series of workshops and meetings of networks of evaluators in Africa, resulted in modifications to those standards. The result was presented to a plenary session of the Inaugural Conference of the African Evaluation Association in September 1999, attended by over 300 evaluators from 35 countries. The AfrEA Conference decided that a systematic effort should be made to produce a list of African evaluation guidelines, similar to the PES, and that this checklist should be reviewed by national evaluation associations and networks in Africa and field tested in several countries. Ten national and regional networks and associations suggested modifications to the text and endorsed the final version of the guidelines.  相似文献   
13.
14.
Editorial     
Ohne Zusammenfassung
Editorial
  相似文献   
15.
Recent research has demonstrated that Democrats and Republicansare divided along religious lines–98) confirm that thelink between religiosity and Republican Party identificationis stronger among younger than older voters.  相似文献   
16.
Volume 30     
Theory and Society -  相似文献   
17.
18.
Service-learning programs are not free from challenges brought about by lack of financial support, lack of widespread commitment from professors, community agencies, and recipients of service, and lack of knowledge and insight in students directly involved in such programs. While service-learning initiatives and programs serve positive functions for organizations and individuals, rhetorical accolades for service learning can distort or omit the realities of program implementation and sustained delivery. This paper specifically explores the following challenges connected to service-learning programs: (1) pedagogical difficulties; (2) student limitations; (3) time constraints; and (4) community cooperation.  相似文献   
19.
Summary.  Alongside the development of meta-analysis as a tool for summarizing research literature, there is renewed interest in broader forms of quantitative synthesis that are aimed at combining evidence from different study designs or evidence on multiple parameters. These have been proposed under various headings: the confidence profile method, cross-design synthesis, hierarchical models and generalized evidence synthesis. Models that are used in health technology assessment are also referred to as representing a synthesis of evidence in a mathematical structure. Here we review alternative approaches to statistical evidence synthesis, and their implications for epidemiology and medical decision-making. The methods include hierarchical models, models informed by evidence on different functions of several parameters and models incorporating both of these features. The need to check for consistency of evidence when using these powerful methods is emphasized. We develop a rationale for evidence synthesis that is based on Bayesian decision modelling and expected value of information theory, which stresses not only the need for a lack of bias in estimates of treatment effects but also a lack of bias in assessments of uncertainty. The increasing reliance of governmental bodies like the UK National Institute for Clinical Excellence on complex evidence synthesis in decision modelling is discussed.  相似文献   
20.
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