全文获取类型
收费全文 | 1542篇 |
免费 | 103篇 |
国内免费 | 4篇 |
专业分类
1649篇 |
出版年
2023年 | 19篇 |
2022年 | 22篇 |
2021年 | 21篇 |
2020年 | 33篇 |
2019年 | 44篇 |
2018年 | 65篇 |
2017年 | 68篇 |
2016年 | 70篇 |
2015年 | 39篇 |
2014年 | 49篇 |
2013年 | 181篇 |
2012年 | 85篇 |
2011年 | 53篇 |
2010年 | 60篇 |
2009年 | 52篇 |
2008年 | 51篇 |
2007年 | 69篇 |
2006年 | 59篇 |
2005年 | 43篇 |
2004年 | 50篇 |
2003年 | 54篇 |
2002年 | 46篇 |
2001年 | 27篇 |
2000年 | 32篇 |
1999年 | 26篇 |
1998年 | 23篇 |
1997年 | 17篇 |
1996年 | 13篇 |
1995年 | 12篇 |
1994年 | 9篇 |
1993年 | 8篇 |
1992年 | 15篇 |
1991年 | 8篇 |
1990年 | 9篇 |
1989年 | 8篇 |
1988年 | 11篇 |
1987年 | 12篇 |
1985年 | 10篇 |
1984年 | 10篇 |
1982年 | 10篇 |
1981年 | 9篇 |
1979年 | 8篇 |
1977年 | 7篇 |
1976年 | 8篇 |
1975年 | 9篇 |
1973年 | 9篇 |
1971年 | 8篇 |
1970年 | 10篇 |
1968年 | 7篇 |
1967年 | 9篇 |
排序方式: 共有1649条查询结果,搜索用时 15 毫秒
221.
Testing joint attention, imitation, and play as infancy precursors to language and theory of mind 总被引:1,自引:0,他引:1
Tony Charman Simon Baron-Cohen John Swettenham Gillian Baird Antony Cox Auriol Drew 《Cognitive development》2000,15(4):1111
Various theoretical accounts propose that an important developmental relation exists between joint attention, play, and imitation abilities, and later theory of mind ability. However, very little direct empirical evidence supports these claims for putative “precursor” theory of mind status. A small sample (N=13) of infants, for whom measures of play, joint attention, and imitation had been collected at 20 months of age, was followed-up longitudinally at 44 months and a battery of theory of mind measures was conducted. Language and IQ were measured at both timepoints. Imitation ability at 20 months was longitudinally associated with expressive, but not receptive, language ability at 44 months. In contrast, only the joint attention behaviours of gaze switches between an adult and an active toy and looking to an adult during an ambiguous goal detection task at 20 months were longitudinally associated with theory of mind ability at 44 months. It is argued that joint attention, play, and imitation, and language and theory of mind, might form part of a shared social–communicative representational system in infancy that becomes increasingly specialised and differentiated as development progresses. 相似文献
222.
Simon French 《Journal of Multi-Criteria Decision Analysis》2000,9(4):125-126
223.
James K. Luiselli Rita Gardner Michelle Arons Helen McDonald Colleen Madigan Nina Marchese Elizabeth Peck Andrea Potoczny-Gray Michele Simon 《Behavioral Interventions》1998,13(3):181-200
Children and adolescents who experience a traumatic brain injury (TBI) typically have sensory, cognitive, behavioral, and functional skill challenges that must be addressed in acute and post-acute rehabilitation settings. This article describes a community-based school that combines educational, medical, nursing, family, residential-living, and psychological services in a comprehensive program of pediatric neurorehabilitation. The operational, administrative, and clinical features of these service components are presented. A critical aspect of the program is an emphasis on applied behavior analysis procedures for purposes of assessment, treatment formulation, and evaluation. Data are reviewed to demonstrate demographics, patterns of service delivery, and outcome. The school program represents an educational alternative for students with TBI who are discharged from acute-care settings and require comprehensive support services to facilitate their transition and re-entry to public school and community living. © 1998 John Wiley & Sons, Ltd. 相似文献
224.
225.
There is a growing trend toward later toilet training of typically developing children. This trend is a problem for caregivers and professionals who work with young children, because it is associated with a number of costs and health risks in child-care settings. Results of a recent study (Tarbox, Williams, & Friman, 2004) suggest that wearing underwear may facilitate the development of toileting skills. Based on these findings, we examined the effects of wearing disposable diapers, disposable pull-on training pants, and underwear on urinary continence of 5 typically developing toddlers in a child-care setting. Underwear decreased incontinence and increased continent urinations for 2 of the 5 participants, produced no improvement in 2 participants, and when combined with increased fluid intake and longer sitting periods, produced some favorable trends for the 5th participant. 相似文献
226.
227.
Tripping and falling is a serious health problem for older citizens due to the high medical costs incurred and the high mortality rates precipitated mostly by hip fractures that do not heal well. Current falls prevention technology encompasses a broad range of interventions; both passive (e.g., safer environments, hip protectors) and active (e.g., sensor-based fall detectors) which attempt to reduce the effects of tripping and falling. However the majority of these interventions minimizes the impact of falls and do not directly reduce the risk of falling. This paper investigates the prediction of gait parameters related to foot-to-ground clearance height during the leg swing phase which have been physically associated with tripping and falling risk in the elderly. The objective is to predict parameters of foot trajectory several walking cycles in advance so that anticipated low foot clearance could be addressed early with more volitional countermeasures, e.g., slowing down or stopping. In this primer study, foot kinematics was recorded with a highly accurate motion capture system for 10 healthy adults (25-32 years) and 11 older adults (65-82 years) with a history of falls who each performed treadmill walking for at least 10 min. Vertical foot displacement during the swing phase has three characteristic inflection points and we used these peak values and their normalized time as the target prediction values. These target variables were paired with features extracted from the corresponding foot acceleration signal (obtained through double differentiation). A generalized regression neural network (GRNN) was used to independently predict the gait variables over a prediction horizon (number of gait cycles ahead) of 1-10 gait cycles. It was found that the GRNN attained 0.32-1.10 cm prediction errors in the peak variables and 2-8% errors in the prediction of normalized peak times, with slightly better accuracies in the healthy group compared to elderly fallers. Prediction accuracy decreased linearly (best fit) at a slow rate with increasing prediction horizon ranging from 0.03 to 0.11 cm per step for peak displacement variables and 0.34 × 10(-3) - 1.81 × 10(-3)% per step for normalized peak time variables. Further time series analysis of the target gait variable revealed high autocorrelations in the faller group indicating the presence of cyclic patterns in elderly walking strategies compared to almost random walking patterns in the healthy group. The results are promising because the technique can be extended to portable sensor-based devices which measure foot accelerations to predict the onset of risky foot clearance, thus leading to a more effective falls prevention technology. 相似文献
228.
Michael Band Simon Dein Kate Miriam Loewenthal 《Mental health, religion & culture》2013,16(10):1031-1047
The relationship between religion and mental health has been the subject of extensive research, particularly in recent years. The issues of coping and suicidality have also been widely studied. Significantly, however, how religious people cope with harsh life situations is an area which has been overlooked. The present study based on 18 semi-structured interviews, analyses have members of the Religious Zionist community in Israel cope with harsh life situations. Although the study confirms the conclusions of previous research – in general religion creates a buffer to suicide – the results showed a relatively low impact of religiosity on coping: in general these religious interviewees found it difficult to access their religiosity during harsh life situations. The paper suggests a range of explanations, for example the complexity of personal and collective identities which characterise this group, or – more significantly – the possibilty that religious coping is not actually absent but is only available in a second, later stage of coping. 相似文献
229.
230.
Numerically small disciplines can be jeopardized by geographic difficulties, if student populations at universities are small and distances between them large. This problem could be addressed, if teaching resources could be shared among several universities and students in several locations could be taught simultaneously. We present the results of a trial in simultaneous Internet and videoconferencing delivery of an introductory cognitive science laboratory. The trial relied on off-the-shelf software and hardware. Students found the delivery nearly as effective as a locally run laboratory, despite a noticeable difference in the level of interactivity between the remote and other, local laboratory classes. We discuss possible further improvements in teaching efficiency and efficacy. 相似文献