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   18202篇
  免费   770篇
  国内免费   9篇
  2020年   198篇
  2019年   223篇
  2018年   338篇
  2017年   290篇
  2016年   340篇
  2015年   257篇
  2014年   316篇
  2013年   1438篇
  2012年   572篇
  2011年   524篇
  2010年   380篇
  2009年   339篇
  2008年   493篇
  2007年   523篇
  2006年   453篇
  2005年   453篇
  2004年   415篇
  2003年   360篇
  2002年   392篇
  2001年   716篇
  2000年   709篇
  1999年   503篇
  1998年   221篇
  1997年   196篇
  1996年   222篇
  1995年   184篇
  1994年   187篇
  1993年   169篇
  1992年   413篇
  1991年   376篇
  1990年   392篇
  1989年   337篇
  1988年   321篇
  1987年   318篇
  1986年   288篇
  1985年   306篇
  1984年   268篇
  1983年   249篇
  1982年   196篇
  1979年   237篇
  1978年   194篇
  1977年   170篇
  1975年   205篇
  1974年   251篇
  1973年   249篇
  1972年   193篇
  1971年   191篇
  1969年   180篇
  1968年   214篇
  1967年   198篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
32.
33.
34.
The purpose of this study was to determine the effects of Type A behavior and family history of hypertension on cardiovascular reactivity to mental stress in a group of employed black women. Measures of heart rate and of systolic blood pressure (SBP) and diastolic blood pressure (DBP) were taken at rest, during a mental arithmetic task, and during the Type A Structured Interview (SI). Results indicated that the Type A behavior pattern was associated with SBP and DBP hyperresponsivity during the SI but not during mental arithmetic. Additionally, certain speech components of the Type A pattern, as well as features of the potential-for-hostility component, were also related to cardiovascular responses during the SI. Family history of hypertension did not influence the cardiovascular parameters either alone or in combination with Type A behavior. The results suggest that many of the cardiovascular response characteristics of the Type A pattern that have been observed in predominantly white samples also hold true for blacks. Replication of these findings with other subgroups of blacks, such as young females and middle-aged males, will help document the generality of these findings within the black population.  相似文献   
35.
36.
37.
38.
39.
This research examined the psychological underpinnings of concern for national symbols and ritualistic‐ceremonial activities or “symbolic involvement.” We propose and test a distinction between symbolic and “instrumental” involvement or concern for the functionality of national institutions and their capability to provide instrumental benefits to citizens. Items comprising the two constructs were found to be empirically distinct, evidenced by statistically reliable and orthogonal dimensions in exploratory factor analysis. Moreover, evidence based on divergent patterns of relations with various forms of national membership indicates that symbolic and instrumental involvement are rooted in distinct motivational concerns related to identity expression and object appraisal, respectively. These findings suggest that national symbolism evokes a psychological attachment to the nation as an abstracted social entity, but not as a concrete functional system.  相似文献   
40.
This essay is based on a pilot study that examined the effects of managed care on the treatment of children and families, with special attention to community mental health. We embarked on the pilot study to test the accuracy and generalizability of our impression that family therapy and other systemic practices have been marginalized in ordinary clinics and agencies, and to understand the reasons why. We interviewed managed care providers, researchers, family therapy trainers, and clinicians in the Northeast. Our findings led to seven themes that support our impression that, even though there is a consensus about the need for coordinated family-based services, there is a disconnection between state policies, contractual requirements and what is actually occurring at the implementation level. This study suggests that our knowledge of human systems may be in danger of being disqualified and lost, with damaging consequences for the care of children. Yet, as systemic thinkers and practitioners, it is our belief that ethical and effective treatment need not be at odds with care that is cost-efficient. The direction of our future research will be to study whether the involvement of all stakeholders at all levels of planning and training leads to systemic family-based practices that consistently save costs and provide high-quality care.  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