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21.
Machado-Rodrigues AM Coelho-E-Silva MJ Mota J Cyrino E Cumming SP Riddoch C Beunen G Malina RM 《Journal of sports sciences》2011,29(14):1503-1514
The agreement between self-reported and objective estimates of activity energy expenditure was evaluated in adolescents by age, sex, and weight status. Altogether, 403 participants (217 females, 186 males) aged 13-16 years completed a 3-day physical activity diary and wore a GT1M accelerometer on the same days. Partial correlations (controlling for body mass) were used to determine associations between estimated activity energy expenditure (kcal · min(-1)) from the diary and accelerometry. Differences in the magnitude of the correlations were examined using Fisher's r to z transformations. Bland-Altman procedures were used to determine concordance between the self-reported and objective estimates. Partial correlations between assessments of activity energy expenditure (kcal · min(-1)) did not differ significantly by age (13-14 years: r = 0.41; 15-16 years: r = 0.42) or weight status (normal weight: r = 0.42; overweight: r = 0.39). The magnitude of the association was significantly affected by sex (Δr = 0.11; P < 0.05). The agreement was significantly higher in males than in females. The relationship between activity energy expenditure assessed by the objective method and the 3-day diary was moderate (controlling for weight, correlations ranged between 0.33 and 0.44). However, the 3-day diary revealed less agreement in specific group analyses; it markedly underestimated activity energy expenditure in overweight/obese and older adolescents. The assessment of activity energy expenditure is complex and may require a combination of methods. 相似文献
22.
When any innovations or measurement procedures are introduced into the education system to improve or judge the quality of its teaching force, beginning teachers often have to adapt to these new concepts of what constitute a high quality teaching. This article contends that these new concepts neither necessarily match beginning teachers’ own conceptions about their own competency nor has it given beginning teachers a chance to be heard. This study provides an opportunity for beginning teachers’ ‘voices’ to be heard through phenomenography which is an interpretive research approach to discover what beginning teachers in Malaysia conceive and understand as competence in relation to what they do every day as teachers. The main finding of this study is the key role played by beginning teachers’ conceptions of competency which has provided strong implications for educational policies and teacher education. The findings suggest that teachers need to be represented in any quality improvement measures. Careful attention should also be paid to the school systems and to teacher training programmes to support and encourage teachers in their professional growth as competent teachers. 相似文献
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法国除了浪漫之外,其美食也是举世闻名的,然而,一顿法国大餐往往所费不菲。小编在这里带您体验法式美食的做法,不妨回家试试,既美味又省钱。 相似文献
28.
Pauline Davey Zeece 《Early Childhood Education Journal》2008,35(6):565-569
Using an example of a toddler’s developing understanding of an apple, this article illustrates how children integrate all
elements in their interpersonal and built environments to support their emerging literacy skills. Otto (2007) and others provide evidence from emergent literacy research that documents observations and exploration by infants, toddlers,
and young children and suggest that the ways in which children participate in early literature-related activities influence
the knowledge they construct. Twenty-two children’s books—including five for apple discoverers—are recommended and reviewed. 相似文献
29.
Pauline Davey Zeece 《Early Childhood Education Journal》2008,36(3):275-279
During early childhood, children adopt a design-based conception of books with increasing consistency. It is not clear if
or how young children spontaneously indentify the myriad of commercially produced, book-related props, toys, and other materials
as support for their early literacy activities. Guidelines for evaluating these supplementary materials are presented and
thirteen books are reviewed and recommended. 相似文献
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