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   54142篇
  免费   2135篇
  国内免费   31篇
  56308篇
  2020年   600篇
  2019年   753篇
  2018年   1081篇
  2017年   1092篇
  2016年   1147篇
  2015年   764篇
  2014年   935篇
  2013年   4790篇
  2012年   1696篇
  2011年   1850篇
  2010年   1078篇
  2009年   1103篇
  2008年   1673篇
  2007年   1646篇
  2006年   1471篇
  2005年   1347篇
  2004年   1313篇
  2003年   1196篇
  2002年   1237篇
  2001年   1777篇
  2000年   1671篇
  1999年   1296篇
  1998年   706篇
  1997年   598篇
  1996年   550篇
  1995年   544篇
  1994年   519篇
  1993年   541篇
  1992年   1034篇
  1991年   984篇
  1990年   965篇
  1989年   887篇
  1988年   842篇
  1987年   829篇
  1986年   829篇
  1985年   876篇
  1984年   702篇
  1983年   606篇
  1982年   505篇
  1979年   686篇
  1978年   522篇
  1976年   479篇
  1975年   619篇
  1974年   660篇
  1973年   628篇
  1972年   557篇
  1971年   496篇
  1968年   563篇
  1967年   561篇
  1966年   486篇
排序方式: 共有10000条查询结果,搜索用时 0 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.
17.
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   
18.
19.
20.
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   
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