首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1308篇
  免费   82篇
  2023年   12篇
  2022年   13篇
  2021年   12篇
  2020年   14篇
  2019年   32篇
  2018年   40篇
  2017年   44篇
  2016年   41篇
  2015年   37篇
  2014年   43篇
  2013年   140篇
  2012年   45篇
  2011年   53篇
  2010年   40篇
  2009年   61篇
  2008年   57篇
  2007年   58篇
  2006年   49篇
  2005年   39篇
  2004年   48篇
  2003年   43篇
  2002年   45篇
  2001年   25篇
  2000年   21篇
  1999年   28篇
  1998年   24篇
  1997年   20篇
  1996年   18篇
  1995年   14篇
  1994年   18篇
  1993年   12篇
  1992年   9篇
  1991年   18篇
  1990年   12篇
  1988年   10篇
  1987年   9篇
  1986年   15篇
  1985年   21篇
  1984年   11篇
  1983年   15篇
  1982年   12篇
  1981年   6篇
  1980年   15篇
  1978年   10篇
  1977年   6篇
  1976年   6篇
  1974年   9篇
  1973年   9篇
  1970年   5篇
  1966年   6篇
排序方式: 共有1390条查询结果,搜索用时 281 毫秒
981.
982.
Since Jane Knitzer’s 1982 report on Unclaimed Children, many states and localities have been developing systems of care to more effectively serve children with serious emotional disturbance. We report on the methods and outcomes of a two-phase study designed to determine the relationship between the mechanisms that have been used to establish systems of care and their resulting levels of collaboration. A national survey of state mental health authorities revealed that, allowing for multiple approaches, 82% of respondents with systems of care used legislation, 15% used inducements, 41% used capacity building and 44% used other means of system change (e.g., blended funding). Cluster analysis was used to select 10 sites for visits. Multiple methods of collecting data at these sites were used including the administration of a scale on collaboration. Data were obtained from 302 respondents. Difference in beliefs about collaboration and collaborative behaviors were found, indicating that level of collaboration may be an important variable to consider in studies of outcomes of systems of care for children and families.  相似文献   
983.
Applying the Theory of Planned Behavior (TPB) to the process of engagement in preventive parenting groups, we tested the ability of family and child measures to predict intent to enroll, enrollment, attendance, and quality of participation in PACE (Parenting Our Children to Excellence). PACE is a prevention trial testing the efficacy of a structured program to promote effective parenting and reduce risk of adverse child outcomes. Mothers of preschoolers (N=451) from diverse ethnic and socioeconomic backgrounds participated at two sites. Results showed that mothers who stated their intent to enroll reported relatively few time constraints but high levels of stress, as did mothers who enrolled. The latter also experienced elevated levels of oppositional defiant child behaviors, indicating that the program reached families who stood to benefit from it. Attendance, which was also best predicted by few time constraints, was high (with 49% of mothers who enrolled attending 5 or more of 8 sessions). In turn, attendance predicted quality of participation (at 1 site only), with mothers attending more sessions participating more actively and enthusiastically. Ethnicity and, with a few exceptions, socioeconomic circumstances and site, were not significant predictors of intent, enrollment, or attendance. Results provide qualified support for the TPB and illustrate its relevance to preventive research and interventions.  相似文献   
984.
The purpose of this review is to (a) document the current status of conceptualizing and measuring family outcomes related to having a member with an intellectual disability and (b) determine the extent to which family research focuses on internal family characteristics as contrasted to external family support. The reviewers collected 28 articles using the terms well-being, adaptation, family functioning, or family quality of life in the title. Results of our analyses are presented as a comparison between well-being, adaptation, and family functioning articles in one group and family quality of life articles in a second group. Both groups lacked explicit conceptual definitions, theory, and random/representative samples. The articles placed an undue emphasis on maternal participation, and tended to report a single family member score as representative of the whole family. Two major differences between the groups was a tendency for family quality of life studies to be grounded in conceptual frameworks and focus on new instrument development. Recommendations for future research directions are included.  相似文献   
985.
In complex navigation using landmarks, an animal must discriminate between potential cues and show context (condition) sensitivity. Such conditional discrimination is considered a form of complex learning and has been associated primarily with vertebrates. We tested the hypothesis that octopuses and cuttlefish are capable of conditional discrimination. Subjects were trained in two maze configurations (the conditions) in which they were required to select one of two particular escape routes within each maze (the discrimination). Conditional discrimination could be demonstrated by selecting the correct escape route in each maze. Six of ten mud-flat octopuses (Octopus bimaculoides), 6 of 13 pharaoh cuttlefish (Sepia pharaonis), and one of four common cuttlefish (S. officinalis) demonstrated conditional discrimination by successfully solving both mazes. These experiments demonstrate that cephalopods are capable of conditional discrimination and extend the limits of invertebrate complex learning.  相似文献   
986.
Impairments in either “cool” or “hot” processes may represent two pathways to deficient decision-making. Whereas cool processes are associated with cognitive and rational decisions, hot processes are associated with emotional, affective, and visceral processes. In this study, 168 boys were administered a card-playing task at ages 13 and 14 years to assess response perseveration. This task was designed to initially reward playing and gradually associate playing with punishment. Measures of subjective ordering (cool processes) and neuroticism (hot processes) at age 13 years were used to examine how these individual characteristics relate to perseveration over time. A decrease in perseveration from age 13 to 14 was associated with cool processes whereas hot processes were associated with response perseveration only over time. A complementary but simultaneous assessment of cool and hot processes, such as neuropsychological and personality tests, could facilitate treatment planning of children with behavioral problems.  相似文献   
987.
Better understanding of age-related differences in skilled performance was the focus of analyses of cognitive-performance scores-relationships in acquisition of a new motor skill. 31 younger adults and 33 older adults were tested on both a cognitive and a psychomotor test. Then, they were asked to learn a juggling task over 12 sessions of 20 min. Analysis indicated age-related differences in the rate of learning. Acquisition by the younger adult group was significantly faster than that by the older adult group. This difference was also reflected in the relationship of cognition and performance for the two age groups. Motor execution for the older adults seemed to require more psychomotor ability, especially at the end of the learning sessions, and was dependent on cognitive control. This trend is consistent with the perspective that cognitive predictors of performance are related to age.  相似文献   
988.
Visuomotor association learning involves learning to make a motor response to an arbitrary visual stimulus. This learning is essential for visual search and discrimination performance and is reliant upon a well-defined neural circuit in the brain that includes the prefrontal cortex and the hippocampal formation. In the present study, we investigated the possible role of attentional processes during such learning using dual-task interference. A motor, verbal, or perceptual concurrent task was performed during the learning/training block of a simple visual discrimination task. Contrary to expectation, the dual-task groups showed improved learning and learning-dependent performance compared with untrained control and non-dual-task trained groups. A second experiment revealed that this effect did not appear to be due to increased arousal level; the inclusion of alerting tones during learning did not result in facilitation. These findings suggest that the engagement of attention, but not arousal, during the acquisition of a visuomotor association can facilitate this learning and its expression.  相似文献   
989.
The fear of love: the denial of self in relationship   总被引:1,自引:1,他引:0  
This paper explores the fear of love and relationship which develops when a child has experienced parents who cannot tolerate emotional separation and so attempt to retain perfect contingency with their infant, long after the infant needs to begin to separate and individuate. The child is a 'self-object' for the parents, who depend on the responses of others, including their own child, to maintain a sense of their own identity. The impact of this demand for 'reverse parenting' on the child's development is explored and clinical work with an adult patient whose history reflects this process is described.  相似文献   
990.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号