全文获取类型
收费全文 | 1664篇 |
免费 | 58篇 |
出版年
2023年 | 11篇 |
2022年 | 8篇 |
2020年 | 20篇 |
2019年 | 21篇 |
2018年 | 31篇 |
2017年 | 35篇 |
2016年 | 42篇 |
2015年 | 44篇 |
2014年 | 34篇 |
2013年 | 161篇 |
2012年 | 61篇 |
2011年 | 65篇 |
2010年 | 45篇 |
2009年 | 48篇 |
2008年 | 70篇 |
2007年 | 60篇 |
2006年 | 70篇 |
2005年 | 52篇 |
2004年 | 59篇 |
2003年 | 66篇 |
2002年 | 65篇 |
2001年 | 22篇 |
2000年 | 22篇 |
1999年 | 29篇 |
1998年 | 36篇 |
1997年 | 38篇 |
1996年 | 25篇 |
1995年 | 31篇 |
1994年 | 31篇 |
1993年 | 34篇 |
1992年 | 32篇 |
1991年 | 23篇 |
1990年 | 25篇 |
1989年 | 20篇 |
1988年 | 16篇 |
1987年 | 21篇 |
1986年 | 17篇 |
1985年 | 21篇 |
1984年 | 15篇 |
1983年 | 21篇 |
1982年 | 15篇 |
1981年 | 25篇 |
1980年 | 21篇 |
1979年 | 24篇 |
1978年 | 16篇 |
1977年 | 12篇 |
1976年 | 20篇 |
1975年 | 8篇 |
1973年 | 7篇 |
1971年 | 5篇 |
排序方式: 共有1722条查询结果,搜索用时 15 毫秒
991.
Nancy Berenice Ortiz Alvarado Marisol Rodríguez Ontiveros Edgardo Arturo Ayala Gaytán 《The Journal of psychology》2013,147(8):843-859
“Mindsets (or implicit theories) are people’s lay beliefs about the nature of human attributes, such as intelligence or personality”. Individuals with a fixed mindset believe that intelligence is an unchangeable trait, whereas those with a growth mindset think of it as a malleable quality that can be increased and developed. This study explored the relationships among growth mindset, wellbeing, and performance in a sample of 1,240 students from a multi-campus private university located in 18 states across Mexico. Our results indicated that individuals who scored high in growth (vs. fixed) mindset showed increased levels of wellbeing and also performed better in school. Furthermore, we found that wellbeing mediated the relationship between growth mindset and performance and that the effect of growth mindset on grades was higher among younger students. These findings have interesting implications for psychology and education. 相似文献
992.
Nancy Mozur 《Psychological Perspectives》2013,56(1):5-9
Our cover artist, Alok Hsu Kwang-Han, has a truly adventurous spirit that has led him to motorbike through Tibet, to study and live in India, returning twenty or more times, and to travel the world with his brushes, paper, and an open heart. Last year, he gave a workshop to benefit Psychological Perspectives, which was very well attended. His art is a unique blending of several traditions that evolved over decades. In his words 相似文献
993.
994.
995.
Nancy Delaney Cartwright 《Synthese》1974,29(1-4):229-242
996.
998.
999.
The impact of an acute circadian disruption on learning and memory in male and female rats was examined. Circadian disruption was elicited using a brief series of photoperiod shifts. Previous research using male rats showed that acute circadian disruption during acquisition of a spatial navigation task impaired long-term retention and that chronic circadian disruption impaired acquisition of the same task. However, the long-term effects of acute circadian disruption following circadian re-entrainment and whether sex differences in response to circadian disruption exist are still unknown. For the present study, rats were trained on the standard, spatial version of the Morris water task (MWT) and a visual discrimination task developed for the eight-arm radial maze. After reaching asymptotic performance, behavioural training was terminated and the experimental group experienced a series of photoperiod shifts followed by circadian re-entrainment. Following circadian re-entrainment, the subjects were given retention tests on the MWT and visual discrimination task. Following retention testing, an extra-dimensional shift using the eight-arm radial maze was also performed. An acute episode of circadian disruption elicited via photoperiod shifts negatively impacted retention of spatial memory in male and female rats. Retention of the visual discrimination task and the ability to detect extra-dimensional shifts were not impaired. The observed impairments on the MWT indicate that hippocampal representations are susceptible to a small number of photoperiod shifts even if the association is acquired prior to rhythm manipulation and retention is assessed following rhythm stabilization. Effects were limited to a hippocampus-dependent task, indicating that impairments are specific, not global. 相似文献
1000.
Maxim Y. Khitrov Srinivas Laxminarayan David Thorsley Sridhar Ramakrishnan Srinivasan Rajaraman Nancy J. Wesensten Jaques Reifman 《Behavior research methods》2014,46(1):140-147
Using a personal computer (PC) for simple visual reaction time testing is advantageous because of the relatively low hardware cost, user familiarity, and the relative ease of software development for specific neurobehavioral testing protocols. However, general-purpose computers are not designed with the millisecond-level accuracy of operation required for such applications. Software that does not control for the various sources of delay may return reaction time values that are substantially different from the true reaction times. We have developed and characterized a freely available system for PC-based simple visual reaction time testing that is analogous to the widely used psychomotor vigilance task (PVT). In addition, we have integrated individualized prediction algorithms for near-real-time neurobehavioral performance prediction. We characterized the precision and accuracy with which the system as a whole measures reaction times on a wide range of computer hardware configurations, comparing its performance with that of the “gold standard” PVT-192 device. We showed that the system is capable of measuring reaction times with an average delay of less than 10 ms, a margin of error that is comparable to that of the gold standard. The most critical aspect of hardware selection is the type of mouse used for response detection, with gaming mice showing a significant advantage over standard ones. The software is free to download from http://bhsai.org/downloads/pc-pvt/. 相似文献