全文获取类型
收费全文 | 1092篇 |
免费 | 42篇 |
专业分类
1134篇 |
出版年
2021年 | 11篇 |
2020年 | 12篇 |
2019年 | 24篇 |
2018年 | 29篇 |
2017年 | 24篇 |
2016年 | 36篇 |
2015年 | 28篇 |
2014年 | 17篇 |
2013年 | 93篇 |
2012年 | 39篇 |
2011年 | 47篇 |
2010年 | 18篇 |
2009年 | 20篇 |
2008年 | 28篇 |
2007年 | 36篇 |
2006年 | 28篇 |
2005年 | 35篇 |
2004年 | 30篇 |
2003年 | 40篇 |
2002年 | 26篇 |
2001年 | 17篇 |
2000年 | 33篇 |
1999年 | 26篇 |
1998年 | 12篇 |
1997年 | 16篇 |
1996年 | 18篇 |
1995年 | 18篇 |
1994年 | 10篇 |
1993年 | 9篇 |
1992年 | 19篇 |
1990年 | 18篇 |
1989年 | 15篇 |
1988年 | 15篇 |
1987年 | 22篇 |
1986年 | 13篇 |
1985年 | 13篇 |
1984年 | 16篇 |
1983年 | 8篇 |
1982年 | 8篇 |
1981年 | 11篇 |
1980年 | 15篇 |
1978年 | 21篇 |
1977年 | 15篇 |
1976年 | 12篇 |
1975年 | 19篇 |
1974年 | 17篇 |
1973年 | 14篇 |
1972年 | 9篇 |
1971年 | 10篇 |
1966年 | 13篇 |
排序方式: 共有1134条查询结果,搜索用时 15 毫秒
181.
182.
As the older adult population continues to grow, the prevalence of chronic diseases is also increasing, leading to the need for novel ways of managing this large population of patients. One solution is to focus on informal caregivers. These informal caregivers already make a substantial contribution to our nation’s healthcare finances and patient health outcomes. Caregivers also derive benefits from caring for their family member or friend; however, it is not uncommon for these individuals to experience negative health consequences, or what is often called “burden of care.” Those called to care are not without their own burdens, and they must frequently make significant lifestyle adjustments that impact their own health. Therefore, for caregivers to be effective, caring for the caregivers must be a focus of medicine in the twenty-first century. 相似文献
183.
This research investigated the extent and nature of the informational support that enables young children to understand pictures as symbols. Two experiments were conducted using an object-retrieval task. The first experiment varied the amount (complete and no instructions) and kind of information (intended function of the symbol and picture-referent correspondence) provided to 30-month-old children. The results show that information which emphasizes intentionality was critical for symbolic comprehension. Although information about correspondence was not enough in itself, children came to achieve an insight halfway through the task, probably as a consequence of a comparison process. This study suggests that highlighting the heart of the symbolic relation, its intended function, is a privileged route in children's appreciation of a picture-referent relation. The second experiment shows that by 36 months of age, children figured out, with no instructions at all, the intentional nature of the symbol. 相似文献
184.
185.
186.
Stephen Rhodes Nelson Cowan 《British journal of psychology (London, England : 1953)》2019,110(2):449-460
This special issue of the British Journal of Psychology brings together cutting edge research on a range of topics in visual working memory (VWM). In this commentary, we attempt to summarize common themes in current VWM research exemplified in this issue. The articles include several reviews of important topics as well as empirical papers covering three main themes. The first concerns the nature of mental representations of memoranda in the commonly used delayed estimation task, where both fine‐grained and broad categorical details appear to be represented, and their susceptibility to interference. The second concerns interactions between VWM representations, both those that produce individuation of representations and those that create an overarching ensemble structure. Finally, the third main topic concerns the use of VWM during visual search and in the learning of repeated configurations in search displays. The work presented here, and other work in the field, points to a rich interplay between representations in VWM but also between VWM and information in long‐term memory. Opportunities for further investigation are highlighted throughout. 相似文献
187.
188.
189.
190.
Kristin Layous S. Katherine Nelson Jaime L. Kurtz Sonja Lyubomirsky 《The journal of positive psychology》2017,12(4):385-398
Across two studies, we found evidence supporting a positive feedback loop between positive activities, kindness and well-being. In Study 1, participants were randomly assigned to one of four distinct positive activities (versus a neutral writing activity) before spending three weeks engaging in kind acts. We found that the positive activities served as triggers – that is, they predicted greater prosocial effort, which in turn predicted greater well-being immediately following the intervention and at a two-week follow-up. In Study 2, we explored the specific effects of a gratitude trigger, and extended the intervention period to six weeks. Although, we did not replicate the direct effect of the gratitude trigger on prosocial effort, people who wrote gratitude letters (versus writing about their week) reported relatively greater elevation, which predicted greater prosocial effort during the six weeks. In turn, replicating Study 1, greater effort predicted higher well-being immediately following the study. 相似文献