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991.
992.
The relationship between learning disabilities and psychological development is a complex, ongoing intrapsychic and psychosocial process. The results of two clinical-psychological investigations about a group of learning-disabled children and a group of learning-disabled adolescents is summarized. Although the learning-disabled youngsters were psychologically more heterogeneous than homogeneous, several common configurations emerged that characterized these children and adolescents: (1) problems in work and learning (due to the learning disability itself and to psychogenic factors related directly and/or indirectly to the disability); (2) chronic, low-level depression and relatively high, free floating anxiety; (3) characteristic unconscious concerns about self and others. In addition, learning disabilities organize psychological development in determining strengths, weaknesses, interests, and defensive strategies. And, the intermittent nature of mild to moderately severe learning disabilities seems to contribute to a sense of being traumatized and to character riqidity. The educational and clinical implications are briefly discussed.  相似文献   
993.
When learners use computers, they typically look at the screen, type, use the mouse, talk, write, sketch and make gestures. This paper identifies technical, practical, ethical and methodological challenges associated with traditional methods for studying such interactions. It examines the potential of recent technologies for identifying learners?? attention, recording real-time writing and sketching, and analyzing multiple data feeds in an integrated way. A study of learners?? interactions with multiple representations is used to illustrate the advantages and disadvantages of digital approaches to collecting, coordinating and analyzing observational data. The paper argues that there is a need for research into frameworks for analyzing digital data of learners?? computer interactions in systematic and principled ways.  相似文献   
994.
Following training on a variable-interval food-reinforcement schedule, rats were exposed to three unsignaled shocks during each 30-min session. Although leverpressing was initially suppressed, responding was significantly accelerated following offset of the third shock, regardless of when in the session it occurred. Control sessions in which only two shocks were programmed, one early and one late, did not yield baseline acceleration. Evidence of “counting to three” was less obvious in subjects simultaneously exposed to a temporal autocontingency, that is, for which each shock also predicted a minimum 3-min safety period. The addition of a signal prior to each shock eliminated evidence of counting behavior altogether. We conclude that rats may be taught to count, but such behavior is highly unnatural and may be blocked or overshadowed by more salient sources of information.  相似文献   
995.
The surprising property of many data sets that their first significant digits follow Benford's Law provides examples that can pique and hold students’ interest. Several ideas for student activities are presented.  相似文献   
996.
Background Before the 1990s, an individual or medical model dominated educational research methodology with respect to younger children: the subjects of the research were usually considered untrustworthy sources of information. A subsequent shift towards an ecological model has focused on the child's perspective: however, Lewis and Lindsay have described the development of methods for conducting research with children as slow.

Purpose This paper examines how storytelling can be used as a method of collecting authentic and revealing research data from children. The method is suggested as a valuable way in which to gain insights into children's discourse, and is used in this paper in relation to children's discourse about reading.

Sample, design and methods The storytelling method was initially trialled in one school with 36 children aged between 5 and 11 years. The storytelling interview was then used in case studies over a period of a year in three schools, with a total of 88 7- and 8-year-old children. During the interviews, children were asked to tell a story entitled ‘The child who didn't like reading’. Systematic content analysis was undertaken to identify emergent cultural norms and models in the stories. Information on the children's reading practices, and their observations on reading, was also collected for the purposes of triangulation.

Results The children's storytelling gave access to their cultural models of reading. It was found that the stories demonstrated sufficient triangulation with the other data about the children's reading practices to support a sociocultural production of the children's discourse.

Conclusions Storytelling can provide a useful and credible method of collecting research data from children. It may be especially useful with poor readers as there are no literacy demands, and in this respect, affords socially inclusive research.  相似文献   
997.
Sex Differences in Neonatal Stress Reactivity   总被引:3,自引:0,他引:3  
The question of whether a sexually dimorphic stress reaction exists prior to extensive socialization was addressed by examining sex differences in physiological and behavioral stress reactivity, in healthy, term neonates, after a mildly stressful behavioral assessment procedure. The Neonatal Behavior Assessment Scale (NBAS; Brazelton, 1973) was administered to 18 male and 18 female neonates. Heart rate (HR), salivary cortisol, and behavioral states were assessed before and after the exam. Sex differences included higher cortisol response in males and a greater change in HR and higher NBAS motor performance cluster score in females. Salivary cortisol, HR change, NBAS cluster scores, and behavioral states after NBAS provided 100% discrimination between male and female infants. These findings suggest that there are neonatal sex differences in behavioral and physiological stress reactivity prior to socialization.  相似文献   
998.
We studied 52 parent–child dyads reading an alphabet book to examine the nature of children's miscues and parents' feedback, and whether miscues and feedback were related to each other and to preliteracy skills. Letter knowledge, phonological awareness, and expressive vocabulary were assessed in 5-year-old nonreaders who were also audiotaped reading an alphabet book at home with their parent. Results indicate that after controlling for vocabulary, children with higher phonological awareness more often labeled objects with a name beginning with the page's target letter. Parents provided substantial sustaining feedback after miscues, as though using alphabet books as a way of fostering their child's literacy. Findings highlight the need to consider both the child's skill-base and parent–child interactions to understand the role of alphabet books in literacy development.  相似文献   
999.
Narratives, or stories, have been identified as one of the ways in which knowledge might be transferred, shared or exchanged in organisational settings. Beyond their identification, little consideration has been given to the ways in which narrative approaches can increase our understanding of the creation and dissemination of knowledge in organisations. This paper reflects upon some of the ways in which narrative approaches might contribute towards a better understanding of organisational knowledge management. It contributes to the debate on the nature and significance of the contextual features of organisational knowledge, particularly the role of tacit knowledge, and identifies some of the distinctions between formal and informal knowledge transfer mechanisms, which operate (with or without effective management) within organisations.  相似文献   
1000.
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