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41.
One of the aims of participatory action research (PAR) is to bring realities of lives closer together through dialogue and ‘conscientization’, raising critical awareness among participants from all backgrounds. Promoting participation often assumes a power shift from the decision-makers to the majority of society, who can be the end-receivers of decisions made. Once some kind of awareness is achieved, the participants should be able to challenge the causes of their perceived oppression, or resolve the suffering that is endured, if that is what they hope to achieve. However, the situation is more complex in many contemporary societies, in which there are not only differing cultural beliefs related to religion, but different ontologies about being and living in the world. There is much contemporary debate about the possibilities of critique that take on board divergent sociomaterial realities within the same classroom. Practical and structural differences can pose challenges to conducting PAR research. In this article, we address the distinctive nature of PAR in relation to a culturally diverse group of participants. We argue that research using a PAR framework can result in subtle ethical challenges, which also provide insights for opportunities and strategies. Drawing from the authors’ experiences in multicultural education and working with culturally diverse youth and postgraduate students, opportunities and challenges of applying a PAR approach are discussed. We conclude with the suggestion that PAR remains consistent with its original transformative goals, but also remain open to further explorations of activism that address pressing contemporary concerns within culturally complex societies.  相似文献   
42.
The decomposition of water by electricity, and the voltaic pile as a means of generating electricity, have both held an iconic status in the history of science as well as in the history of science teaching. These experiments featured in chemistry and physics textbooks, as well as in classroom teaching, throughout the nineteenth and twentieth centuries. This paper deals with our experiences in restaging the decomposition of water as part of a history of science course at the Norwegian University of Science and Technology, Trondheim, Norway. For the experiment we used an apparatus from our historical teaching collection and built a replica of a voltaic pile. We also traced the uses and meanings of decomposition of water within science and science teaching in schools and higher education in local institutions. Building the pile, and carrying out the experiments, held a few surprises that we did not anticipate through our study of written sources. The exercise gave us valuable insight into the nature of the devices and the experiment, and our students appreciated an experience of a different kind in a history of science course.  相似文献   
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ABSTRACT

Acute and adaptive changes in systemic markers of oxidatively generated nucleic acid modifications (i.e., 8-oxo-7,8-dihydro-2?-deoxyguanosine (8-oxodG) and 8-oxo-7,8-dihydroguanosine (8-oxoGuo)) as well as inflammatory cytokines (i.e., C-reactive protein, interleukin-6, interleukin-10, and tumour necrosis factor alpha), a liver hormone (i.e., fibroblast growth factor 21 (FGF21)), and bone metabolism markers (sclerostin, osteocalcin, C-terminal telopeptide, and N-terminal propeptide of type 1 procollagen) were investigated following a marathon in 20 study participants. Immediate changes were observed in inflammatory cytokines, FGF21, and bone metabolism markers following the marathon. In contrast, no immediate changes in urinary excretion of 8-oxodG and 8-oxoGuo were evident. Four days after the marathon, decreased urinary excretion of 8-oxodG (-2.9 (95% CI -4.8;-1.1) nmol/24 h, < 0.01) and 8-oxoGuo (-5.8 (95% CI -10.3;-1.3) nmol/24 h, = 0.02) was observed. The excretion rate of 8-oxodG remained decreased 7 days after the marathon compared to baseline (-2.3 (95%CI -4.3;-0.4) nmol/24 h, = 0.02), whereas the excretion rate of 8-oxoGuo was normalized. In conclusion marathon participation immediately induced a considerable inflammatory response, but did not increase excretion rates of oxidatively generated nucleic acid modifications. In fact, a delayed decrease in oxidatively generated nucleic acid modifications was observed suggesting adaptive antioxidative effects following exercise.  相似文献   
44.
OBJECTIVE: The purpose of this study was to examine the roles that social support and attachment play with regard to psychopathology among young adults with and without a history of physical maltreatment. Attachment was conceptualized in terms of the dimensions of view of self and view of other. Attachment and social support were examined individually and concurrently as protective factors. METHOD: The sample consisted of 956 young adults, 294 of whom had a history of physical abuse. Individuals filled out a series of questionnaires inquiring about current attachment, social support, and psychopathology symptoms. A regression design was used, examining how well attachment and/or social support predicted current psychopathology. RESULTS: Results indicated that attachment security, particularly when characterized by a positive view of self, strongly predicted lower levels of psychopathology, irrespective of abuse status. Notably, view of self was a substantially larger predictor than was view of other or social support for individuals with and without a history of physical maltreatment. Among maltreatment subtypes, psychological abuse emerged as the largest predictor of psychopathology. CONCLUSIONS: The current study suggests that the attachment dimension of view of self is fundamental in predicting current psychopathology level, irrespective of abuse history. In addition, the subtype of psychological abuse deserves further investigation as a risk factor.  相似文献   
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This article addresses constructions and redefinitions of teacher professionalism by focusing on the discursive negotiations between the government and the teachers’ union in Norway. Based on an examination of three white papers on teacher education from the past 15?years and policy documents put forth by the Union of Education Norway during the past decade, the authors argue that new constructions of teacher professionalism are produced both by the government and from within the teachers’ union. However, there are differences between the government and the teachers’ union concerning what the main aspects of teacher professionalism are. The government emphasises teacher accountability, research-based practice and specialisation. By contrast, the teachers’ union highlights research-informed practice, responsibility for educational quality and professional ethics. There are three main areas of discursive struggle focused by the teachers’ union: the resistance to accountability policies, the redefining of research-based practice and the lengthening of teacher education. The authors argue that the teachers’ union is adopting an increasingly more active approach, thereby also challenging the idea that the teachers’ union is less interested in developing and taking responsibility for the quality of school education.  相似文献   
47.
In this report, we propose a model of spelling acquisition inspired by statistical learning and a frame-like model of orthographic representations: the fuzzy representation model. To provide an initial test of the model’s predictions for inconsistent words, 107 French-speaking children in Grades 1 to 3 were asked to spell words ending with a silent letter. Half of the words ended with the frequent silent t and half with the less frequent silent d. As predicted, children accurately spelled more t- than d-words. Most errors were omissions and substitutions of the silent letter. Consistent with statistical learning, there was some evidence that children used the preceding orthographic context when making substitution errors. The proportion of omissions, however, was not consistent with the statistical properties of French. These findings are discussed in light of the fuzzy representation model, whereby inconsistencies in words are more likely to be underspecified, if represented at all.  相似文献   
48.
Individual differences in young children's understanding of others' feelings and in their ability to explain human action in terms of beliefs, and the earlier correlates of these differences, were studied with 50 children observed at home with mother and sibling at 33 months, then tested at 40 months on affective-labeling, perspective-taking, and false-belief tasks. Individual differences in social understanding were marked; a third of the children offered explanations of actions in terms of false belief, though few predicted actions on the basis of beliefs. These differences were associated with participation in family discourse about feelings and causality 7 months earlier, verbal fluency of mother and child, and cooperative interaction with the sibling. Differences in understanding feelings were also associated with the discourse measures, the quality of mother-sibling interaction, SES, and gender, with girls more successful than boys. The results support the view that discourse about the social world may in part mediate the key conceptual advances reflected in the social cognition tasks; interaction between child and sibling and the relationships between other family members are also implicated in the growth of social understanding.  相似文献   
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We will present a case study result from a cross-disciplinary education called Medialogy, which is taught in the Technical and Science Faculty at Aalborg University. The aim of Medialogy is to facilitate creativity within technical solutions. The intention of this paper is to answer the following: how do the Medialogy teachers perceive creativity and how do they facilitate it? Many of the answers point to the pedagogical approach used in problem-based learning, which are perceived as an important element for the creative process. In this paper we will also argue the importance of including the social context (both at a macro and at a micro level) in the definition and use of creativity in engineering education.  相似文献   
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