全文获取类型
收费全文 | 1807篇 |
免费 | 89篇 |
专业分类
1896篇 |
出版年
2022年 | 10篇 |
2021年 | 27篇 |
2020年 | 30篇 |
2019年 | 39篇 |
2018年 | 65篇 |
2017年 | 58篇 |
2016年 | 64篇 |
2015年 | 62篇 |
2014年 | 52篇 |
2013年 | 179篇 |
2012年 | 87篇 |
2011年 | 89篇 |
2010年 | 52篇 |
2009年 | 41篇 |
2008年 | 84篇 |
2007年 | 70篇 |
2006年 | 68篇 |
2005年 | 75篇 |
2004年 | 52篇 |
2003年 | 64篇 |
2002年 | 48篇 |
2001年 | 31篇 |
2000年 | 23篇 |
1999年 | 16篇 |
1998年 | 22篇 |
1997年 | 19篇 |
1996年 | 19篇 |
1995年 | 19篇 |
1994年 | 14篇 |
1993年 | 14篇 |
1992年 | 14篇 |
1991年 | 16篇 |
1990年 | 22篇 |
1989年 | 20篇 |
1988年 | 11篇 |
1987年 | 14篇 |
1986年 | 10篇 |
1985年 | 21篇 |
1984年 | 24篇 |
1983年 | 14篇 |
1982年 | 21篇 |
1981年 | 13篇 |
1980年 | 27篇 |
1979年 | 28篇 |
1978年 | 21篇 |
1977年 | 17篇 |
1976年 | 17篇 |
1975年 | 16篇 |
1974年 | 18篇 |
1973年 | 14篇 |
排序方式: 共有1896条查询结果,搜索用时 15 毫秒
141.
Obstructive sleep apnea syndrome (OSAS) is a sleep-related breathing disorder that affects both women and men. The aim of this study was to characterize and investigate the differences in terms of anxiety, depression, illness perception, and quality of life between female and male OSAS patients from a total of 111 patients (33 women and 78 men) who were recently diagnosed with OSAS in an outpatient clinic of a University Hospital in Portugal. They underwent a standardized protocol that included evaluation to assess of psychological morbidity (anxiety and depression - Hospital Anxiety and Depression Scale), illness representations (Brief Illness Perception Questionnaire), and quality of life (Sleep Apnea Quality of Life Index). The most significant differences between female and male OSAS patients result of apnea/hypopnea index (AHI), after controlling for body mass index (p?0.05); anxiety (p?=?0.000) and depression (p?0.005); consequences (p?0.005), identity (p?=?0.000), coherence (p?0.01), and emotional representation (p?0.005) of OSAS; and for daily functioning (p?=?0.000), emotional (p?=?0.001), and symptoms (p?0.05) domains of quality of life. Data suggest that women revealed more psychological morbidity associated with OSAS. Therefore, it seems extremely important to look at women as potential patients for sleep apnea and avoid looking up for a pattern of symptoms that rely on men as a norm to which women are compared. 相似文献
142.
Aim: The purpose of this systematic review was to examine research utilizing single subject research designs (SSRD) to explore the effectiveness of interventions designed to increase parents' ability to support communication and social development in children with autism spectrum disorders (ASDs). Method: Included studies were systematically assessed for methodological quality (Logan et al., 2008; Smith et al., 2007) and intervention effects. Data examining participant characteristics, study methodology, outcomes, and analysis were systematically extracted. Results: Eleven SSRD parent-training intervention studies examining 44 participants with ASD were included. Overall, the studies were of moderate quality and reported increases in parent skills and child language and communication outcomes. Interpretation: The results supported by improvement rate difference (IRD) analysis indicated several interventions demonstrated positive effects for both parent and child outcomes. However, limited generalization and follow-up data suggested only one intervention demonstrated parents' accurate and ongoing intervention implementation beyond training. 相似文献
143.
Bilingualism: consequences for mind and brain 总被引:1,自引:0,他引:1
Building on earlier evidence showing a beneficial effect of bilingualism on children's cognitive development, we review recent studies using both behavioral and neuroimaging methods to examine the effects of bilingualism on cognition in adulthood and explore possible mechanisms for these effects. This research shows that bilingualism has a somewhat muted effect in adulthood but a larger role in older age, protecting against cognitive decline, a concept known as 'cognitive reserve'. We discuss recent evidence that bilingualism is associated with a delay in the onset of symptoms of dementia. Cognitive reserve is a crucial research area in the context of an aging population; the possibility that bilingualism contributes to cognitive reserve is therefore of growing importance as populations become increasingly diverse. 相似文献
144.
Jo?lle Carpentier Geneviève A. Mageau Robert J. Vallerand 《Journal of Happiness Studies》2012,13(3):501-518
Research shows that harmonious and obsessive passion are positively and negatively linked to well-being respectively (e.g., Vallerand et al. in J Personal 75:505?C534, 2007; Psychol Sport Exerc 9:373?C392, 2008). The present study investigated the psychological mechanisms underlying the different impact of the two types of passion on well-being. A theoretical model involving passion, ruminations, flow experiences, and well-being was tested. Results showed that the more people have a harmonious passion, the more they tend to experience flow in their favorite activity, which in turn predicts higher well-being. Obsessive passion did not seem to be systematically linked to flow in the favorite activity. In contrast, the more people have an obsessive passion, the more they tend to ruminate about their passionate activity while engaging in another activity, which did not seem to be systematically the case for people with a harmonious passion. These ruminations are negatively related to flow experiences in the other activity, which are positively associated with well-being. Flow and ruminations thus seem to contribute to the understanding of the link between passion and well-being. 相似文献
145.
Emily Crawford Julien Gross Tess Patterson Harlene Hayne 《Infant and child development》2012,21(2):198-215
When children draw in clinical contexts, clinicians sometimes rely on children's colour use to make inferences about their emotional reaction to the subject of the drawing. Here, we examined whether children use colour to portray emotion in their drawings. In Experiment 1, children indicated their colour preferences and then coloured in outlines of figures characterized as nasty or nice. Children also drew complex, multi‐coloured pictures about their own happy or sad experiences. In Experiment 2, hospitalized children drew about being worried or scared in hospital and about their positive experiences. In both experiments, we examined the relation between children's colour use and their colour preferences. Three‐ to 10‐year‐old children used more preferred colours to colour in the nice outline. Although they were more likely to use non‐preferred colours to colour in the nasty outline, they tended to used a mix of preferred and non‐preferred colours. When both normal and hospitalized children produced drawings about positive and negative events, there was no relation between children's colour choices and their colour preferences; children primarily used preferred colours. These data suggest that clinicians should exercise extreme caution when interpreting the meaning of colour in children's drawings. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
146.
147.
148.
Patterson AE Boakes RA 《Journal of experimental psychology. Animal behavior processes》2012,38(3):303-314
Schedule-induced drinking (SID) can occur when food-deprived rats are given access to water while receiving pellets on an intermittent reinforcement schedule. These conditions can increase water intake excessively. The possible role of adventitious reinforcement of postpellet drinking was assessed by testing whether response-reinforcer contiguity, the relative predictiveness of a response, and whether it is marked are important in the development of SID. Rats exposed to a short interpellet interval acquired SID most rapidly, with this acquired drinking response maintained when animals were transferred to a longer interpellet interval, thus indicating an easy-to-hard effect (Experiment 1). Further experiments demonstrated that a stimulus (a brief-flashing house light) occurring prior to pellet delivery could block the acquisition of SID (Experiment 2), while a lick-contingent tone, intended to increase the associability of this response, produced more rapid acquisition of SID (Experiment 3). Analysis of lick distributions revealed that licking became concentrated in the first half of an interpellet interval only after several sessions. Overall, the results indicated that similar factors affect the acquisition of both SID and instrumental conditioning with delayed reinforcement, as is consistent with a superstitious conditioning account of SID development. 相似文献
149.
150.