全文获取类型
收费全文 | 927篇 |
免费 | 27篇 |
国内免费 | 7篇 |
专业分类
961篇 |
出版年
2021年 | 9篇 |
2020年 | 14篇 |
2019年 | 16篇 |
2018年 | 19篇 |
2017年 | 11篇 |
2016年 | 21篇 |
2014年 | 12篇 |
2013年 | 56篇 |
2012年 | 26篇 |
2011年 | 14篇 |
2010年 | 14篇 |
2009年 | 12篇 |
2008年 | 17篇 |
2007年 | 25篇 |
2006年 | 17篇 |
2005年 | 13篇 |
2004年 | 20篇 |
2003年 | 13篇 |
2002年 | 21篇 |
2001年 | 37篇 |
2000年 | 48篇 |
1999年 | 20篇 |
1998年 | 11篇 |
1997年 | 8篇 |
1992年 | 18篇 |
1991年 | 16篇 |
1990年 | 34篇 |
1989年 | 24篇 |
1988年 | 12篇 |
1987年 | 24篇 |
1986年 | 32篇 |
1985年 | 24篇 |
1984年 | 22篇 |
1983年 | 16篇 |
1982年 | 9篇 |
1981年 | 11篇 |
1980年 | 8篇 |
1979年 | 12篇 |
1978年 | 10篇 |
1976年 | 7篇 |
1975年 | 15篇 |
1974年 | 16篇 |
1973年 | 20篇 |
1972年 | 14篇 |
1971年 | 19篇 |
1970年 | 15篇 |
1969年 | 7篇 |
1968年 | 9篇 |
1967年 | 10篇 |
1951年 | 6篇 |
排序方式: 共有961条查询结果,搜索用时 0 毫秒
101.
Christian S. Chan Wijnand A. P. van Tilburg Eric R. Igou Cyanea Y. S. Poon Katy Y. Y. Tam Venus U. T. Wong S. K. Cheung 《Motivation and emotion》2018,42(4):555-565
Theories of boredom assert that boredom is a product of situational meaninglessness. We conducted two studies to test if the perceived meaningfulness of a situation is associated with state boredom, above and beyond sadness, personality traits, and boredom proneness. In Study 1, 105 participants (72.4% female: mean age?=?33.9 years, SD?=?17.5) described situations in which they experienced boredom, no boredom, engagement, or sadness. They then rated the level of state boredom, sadness, and meaninglessness that they experienced in that situation. As hypothesized, state boredom was associated with situational meaninglessness, before and after controlling for sadness. In Study 2, 148 participants (73.0% female; mean age?=?19.2 years, SD?=?1.8) first provided baseline data on personality traits and boredom proneness. Through a smartphone app-based experience-sampling method, they then responded to a brief questionnaire multiple times a day, across 7 days. The questionnaire asked about the nature of their current activity, whether the activity was done alone or with other people, and their affective state. Results from multilevel modelling of 3022 entries suggest that perceived meaningfulness of the activity was negatively associated with state boredom, above and beyond sadness, personality, and boredom proneness. We also found that being with others during the activity acted as a moderator; activities lower in perceived meaningfulness were associated with higher ratings of state boredom when done with others than when done alone. These results demonstrate that perceptions of meaninglessness characterize state boredom. 相似文献
102.
103.
Some data on Sidman avoidance in the pigeon are presented to illustrate a technique of instrumental training which places minimal restriction upon the form of the reinforced response. The effect of a warning signal is demonstrated, and the course of discrimination-reversal is described. 相似文献
104.
105.
106.
In the present paper we face the problem of estimating cell probabilities in the case of a two-dimensional contingency table from a predictive point of view. The solution is given by a double stochastic process. The first subprocess, the unobservable one, is supposed to be exchangeable and invariant. For the second subprocess, the observable one, we suppose it is independent conditional on the first one. 相似文献
107.
108.
The present study reports a two-year follow-up of psychological effects of predictive testing for Huntington's disease. Questionnaires assessing depression, general health, well-being, self injurious behavior, life satisfaction, and lifestyle were completed by 35 carriers and 58 non-carriers before the predictive test, and 2, 6, 12, and 24 months afterwards. Both carriers and non-carriers showed high suicidal ideation before the predictive testing. Depression scores and frequency of suicidal thoughts increased for carriers, compared to non-carriers, over time. There were no differences regarding life satisfaction or life style between carriers and non-carriers. Predictive testing was beneficial in reducing overall ill-health symptoms and increasing well-being for those initially expressing concern about Huntington's disease. The importance of assessing suicidal ideation and of continuing to provide adequate support is emphasized. 相似文献
109.
Adams G Fryberg SA Garcia DM Delgado-Torres EU 《Cultural diversity & ethnic minority psychology》2006,12(3):493-508
In a questionnaire study among 124 students at Haskell Indian Nations University, the authors investigated the hypothesis that engagement with Indigenous identity--assessed along three dimensions including degree (identification scale), content (panethnic or tribal nation), and context (reservation or nonreservation)--can serve as a psychological resource for well-being and liberation from oppression. Consistent with this hypothesis, degree of identification was positively correlated with community efficacy and perception of racism. Apparently inconsistent with this hypothesis, degree of identification among students who had resided on a reservation was negatively correlated with the Social Self-Esteem subscale of the Current Thoughts Scale. Rather than evidence against the identity-as-resource hypothesis, this pattern may reflect the cultural grounding of self-esteem and tools designed to measure it. 相似文献
110.