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   56562篇
  免费   2322篇
  国内免费   32篇
  58916篇
  2020年   661篇
  2019年   843篇
  2018年   1230篇
  2017年   1234篇
  2016年   1298篇
  2015年   865篇
  2014年   1046篇
  2013年   5036篇
  2012年   1910篇
  2011年   2053篇
  2010年   1189篇
  2009年   1232篇
  2008年   1851篇
  2007年   1847篇
  2006年   1599篇
  2005年   1431篇
  2004年   1428篇
  2003年   1302篇
  2002年   1321篇
  2001年   1809篇
  2000年   1712篇
  1999年   1326篇
  1998年   722篇
  1997年   616篇
  1996年   561篇
  1995年   553篇
  1994年   520篇
  1993年   541篇
  1992年   1043篇
  1991年   974篇
  1990年   969篇
  1989年   876篇
  1988年   844篇
  1987年   831篇
  1986年   819篇
  1985年   880篇
  1984年   693篇
  1983年   600篇
  1982年   483篇
  1979年   683篇
  1978年   499篇
  1976年   469篇
  1975年   610篇
  1974年   637篇
  1973年   609篇
  1972年   554篇
  1971年   493篇
  1968年   564篇
  1967年   560篇
  1966年   492篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
This study examined individuals' tendencies to migrate from one organization to another (i.e., the propensity to switch employers). Previous researchers have suggested that switching organizations throughout the career span may be partially heritable and therefore related to individual differences in personality traits. If personality traits are indeed related to a tendency to turnover from organizations, this suggests that current procedures for calculating utility may be inaccurate. Using a database of 1081 individuals who have been in the workforce for several years, results indicated that personality traits measured by the Occupational Personality Questionnaire (non‐ipsative; OPQn) were modestly related to organization switching (i.e., repeated moves from organization to organization). We found that higher scores on extraversion, openness to experience, and conscientiousness‐related traits were modestly correlated with more frequent organization switching. However, we demonstrate that these modest relationships can produce large inaccuracies in utility estimates.  相似文献   
12.
13.
14.
15.
16.
OBJECTIVE: To test a theoretical model of how ethnic pride and self-control are related to risk and protective factors. DESIGN: A community sample of 670 African American youth (mean age = 11.2 years) were interviewed in households. MAIN OUTCOME MEASURES: Measures of cigarette smoking, alcohol use, and sexual behavior (lifetime to past month). RESULTS: Structural modeling analyses indicated parenting was related to self-control and self-esteem, and racial socialization was related to ethnic pride. Self-control and self-esteem variables were related to levels of deviance-prone attitudes and to perceptions of engagers in, or abstainers from, substance use and sexual behavior. The proximal factors (behavioral willingness, resistance efficacy, and peer behavior) had substantial relations to the criterion variables. Participant gender and parental education also had several paths in the model. Results were generally similar for the 2 outcome behaviors. CONCLUSIONS: In this population, self-esteem and self-control are related to parenting approaches and have pathways to attitudes and social perceptions that are significant factors for predisposing to, or protecting against, early involvement in substance use and sexual behavior.  相似文献   
17.
18.
19.
The essay examines intellectual virtue in the Summa theologiae, taking it as an interpretative key to the epistemology of the Summa theologiae as a whole. Because Aquinas blurs the line between the acquired and the theological virtues, and between virtues and the gifts of the Spirit, it becomes impossible to maintain the distinction between the realms of nature and grace, or between natural reason and revealed truth: grace permeates the most ordinary activities of human reasoning. This reading of the Summa theologiae raises questions about many contemporary debates, particularly those concerning natural law.  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