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191.
Abstract

Four experiments examined the influence of observing a correct model (CM), a learning sequence model (LSM), and an incorrect model (IM) on the performance of two motor skills. The results of experiment 1 showed that the CM and LSM conditions facilitated performance on the first 10 trails, but not thereafter when compared to the IM group and a control group. Experiment 2 showed that performance estimation was improved by observing the CM and LSM conditions, indicating that information was conveyed by observing these models. Experiment 3 revealed pronounced modeling effects on a difficult motor skill for the CM and LSM conditions which were sustained throughout the 60 practice trials. Experiment 4 showed no differences in performance between a live model demonstrating correctly and a filmed model demonstrating correctly. The findings from the 4 experiments were discussed in terms of the information conveyed through observation and its function in the development of the cognitive components of a motor skill.  相似文献   
192.
ABSTRACT

Purpose: Most built environment studies have quantified characteristics of the areas around participants’ homes. However, the environmental exposures for physical activity (PA) are spatially dynamic rather than static. Thus, merged accelerometer and global positioning system (GPS) data were utilized to estimate associations between the built environment and PA among adults. Methods: Participants (N = 142) were recruited on trails in Massachusetts and wore an accelerometer and GPS unit for 1–4 days. Two binary outcomes were created: moderate-to-vigorous PA (MVPA vs. light PA-to-sedentary); and light-to-vigorous PA (LVPA vs. sedentary). Five built environment variables were created within 50-meter buffers around GPS points: population density, street density, land use mix (LUM), greenness, and walkability index. Generalized linear mixed models were fit to examine associations between environmental variables and both outcomes, adjusting for demographic covariates. Results: Overall, in the fully adjusted models, greenness was positively associated with MVPA and LVPA (odds ratios [ORs] = 1.15, 95% confidence interval [CI] = 1.03, 1.30 and 1.25, 95% CI = 1.12, 1.41, respectively). In contrast, street density and LUM were negatively associated with MVPA (ORs = 0.69, 95% CI = 0.67, 0.71 and 0.87, 95% CI = 0.78, 0.97, respectively) and LVPA (ORs = 0.79, 95% CI = 0.77, 0.81 and 0.81, 95% CI = 0.74, 0.90, respectively). Negative associations of population density and walkability with both outcomes reached statistical significance, yet the effect sizes were small. Conclusions: Concurrent monitoring of activity with accelerometers and GPS units allowed us to investigate relationships between objectively measured built environment around GPS points and minute-by-minute PA. Negative relationships between street density and LUM and PA contrast evidence from most built environment studies in adults. However, direct comparisons should be made with caution since most previous studies have focused on spatially fixed buffers around home locations, rather than the precise locations where PA occurs.  相似文献   
193.
194.
This paper describes a model for assessing young children who have developmental handicaps. The design and implementation of instructional programs are presented as integral components of assessment. The involvement of parents and teachers in all aspects of assessment is a feature of the model, which also stresses evaluation of the physical and social contexts of child behaviour, and suggests long term evaluation of both the intended and unanticipated effects of intervention.  相似文献   
195.
It is problematic whether primary teachers benefit by completing a first degree especially when the teaching of specific subjects, here science, is the focus of attention. This study reports the comparative results of interviewing thirteen Canadian and ten Australian student teachers, both about to commence their Bachelor of Education. The Canadian students had completed an initial degree while nine of the Australian students were school leavers. The interviews, which explored views about teaching primary science, were analysed with this factor in mind. Student teacher perceptions reported include: how to recognise a “good” primary science teacher; perceptions of self as a “good” primary science teacher; expectations of how the teacher education program could assist their science teaching; and whether (for the Canadian students) the initial degree will help in becoming a primary science teacher. Analysis of the interviews suggests possible influences a first degree (among other factors) may have on perceptions related to primary science teaching and raises questions about what is the best general approach for preparing primary teachers to teach science effectivly.  相似文献   
196.
In some areas of rural Africa, long‐standing cultural traditions and beliefs may discourage parents from verbally engaging with their young children. This study assessed the effectiveness of a parenting program designed to encourage verbal engagement between caregivers and infants in Wolof‐speaking villages in rural Senegal. Caregivers (n = 443) and their 4‐ to 31‐month‐old children were observed at baseline in 2013 and 1 year later at follow‐up. Results showed that caregivers in program villages nearly doubled the amount of child‐directed speech during a play session compared to baseline, whereas caregivers in matched comparison villages showed no change. After 1 year, children in program villages produced more utterances, and showed greater improvement in vocabulary and other language outcomes compared to children in comparison villages.  相似文献   
197.
This paper reviews the development of education governance in South Africa during the 1990s. It outlines ambiguities within and between competing policies, tracing the historical trajectory and explaining its outcome. Apartheid governance, the attempts to reform it, policy options originating within the anti-apartheid movement, and the law passed in 1996 by the new Parliament, are discussed. Trends in South Africa during this decade have been consistent with trends in international education: decentralization, ‘rolling back the state’, privatization, increased class and/or regional disparities, and greater parental governance responsibilities.  相似文献   
198.
A survey of HIV/AIDS clients in Botswana, Africa, all of whom were receiving supportive counselling, was conducted. A total of 328 volunteer clients from randomly selected sites completed the survey related to client perceptions of counselling helpfulness, outlook on life, satisfaction with goal setting in counselling, experience of social stigma, and acceptance by family and others. Overall, clients were very positive concerning the benefits received from counselling, their relationship with their counsellor, the goal setting process, their family/friends support system and their present quality of life. The majority of clients did, however, indicate some level of feeling stigmatized by being HIV-positive. Additional major findings indicated that clients with family incomes of less than 10 K pula per year (around US$1 k) were less positive about their counselling and related experiences than were those with higher levels of family income, with the exception of social stigma where lower family income was associated with less perceived social stigma. Clients reporting counselling sessions lasting more than 15 min were generally more positive in their reactions to counselling and related experiences than were clients reporting sessions typically lasting 15 min or less. A discussion of the findings, along with recommendations for areas needing further study and attention, is provided.  相似文献   
199.
This paper describes a study designed to test whether situated conceptions of learning can be measured using questionnaires, and the relations between these aspects of students’ awareness, their awareness of other environmental variables, and their learning outcomes. A situated conception of learning is one that is evoked and adopted by students in response to their perceptions of their learning tasks in a particular context. It may reflect the aims they have for their studies, once they have started that study and experienced that study environment. The results from this small-scale, limited-context study showed that when students perceived the learning environment as being more supportive of learning, they were more likely to describe a situated conception of learning that was more closely aligned with those promoted by the University. They also had higher scores on the deep approach to learning scale, lower scores on the surface approach scale, and expected to leave university with a higher degree classification. These associations, which suggest that situated conceptions, like prior experience of learning, may be a crucial indicator of learning approach and outcomes of learning, are sufficiently large to warrant more rigorous investigations.  相似文献   
200.
To assess the impact of economic hardship on 111 European American and 167 Mexican American families and their 5th-grade (M age=11.4 years) children, a family stress model was evaluated. Structural equation analyses revealed that economic hardship was linked to indexes of economic pressure that were related to depressive symptoms for mothers and fathers of both ethnicities. Depressive symptoms were linked to marital problems and hostile parenting. Paternal hostile parenting was related to child adjustment problems for European Americans, whereas marital problems were linked to child adjustment problems for Mexican Americans. Maternal acculturation was associated with both higher marital problems and lower hostile parenting. The utility of the model for describing the effects of economic hardship in Mexican Americans is noted.  相似文献   
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