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21.
We designed a laboratory test with variable fixed intensities to simulate cross-country mountain biking and compared this to more commonly used laboratory tests and mountain bike performance. Eight competitive male mountain bikers participated in a cross-country race and subsequently did six performance tests: an individual outdoor time trial on the same course as the race and five laboratory tests. The laboratory tests were as follows: an incremental cycle test to fatigue to determine peak power output; a 26-min variable fixed-intensity protocol using an electronically braked ergometer followed immediately by a 1-km time trial using the cyclist's own bike on an electronically braked roller ergometer; two 52-min variable fixed-intensity protocols each followed by a 1-km time trial; and a 1-km time trial done on its own. Outdoor competition time and outdoor time trial time correlated significantly (r = 0.79, P < 0.05). Both outdoor tests correlated better with peak power output relative to body mass (both r = -0.83, P < 0.05) than absolute peak power output (outdoor competition: r = -0.65; outdoor time trial: r = -0.66; non-significant). Outdoor performance times did not correlate with the laboratory tests. We conclude that cross-country mountain biking is similar to uphill or hilly road cycling. Further research is required to design sport-specific tests to determine the remaining unexplained variance in performance.  相似文献   
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Breakfast skipping is common in adolescents, but research on the effects of breakfast skipping on school performance is scarce. This current cross‐sectional survey study of 605 adolescents aged 11–18 years investigated whether adolescents who habitually skip breakfast have lower end‐of‐term grades than adolescents who eat breakfast daily. Additionally, the roles of sleep behavior, namely chronotype, and attention were explored. Results showed that breakfast skippers performed lower at school than breakfast eaters. The findings were similar for younger and older adolescents and for boys and girls. Adolescents with an evening chronotype were more likely to skip breakfast, but chronotype was unrelated to school performance. Furthermore, attention problems partially mediated the relation between breakfast skipping and school performance. This large‐scale study emphasizes the importance of breakfast as a determinant for school performance. The results give reason to investigate the mechanisms underlying the relation between skipping breakfast, attention, and school performance in more detail.  相似文献   
24.
Recognition of anatomical landmarks in live animals (and humans) is key for clinical practice, but students often find it difficult to translate knowledge from dissection‐based anatomy onto the live animal and struggle to acquire this vital skill. The purpose of this study was to create and evaluate the use of an equine anatomy rug (“Anato‐Rug”) depicting topographical anatomy and key areas of lung, heart, and gastrointestinal auscultation, which could be used together with a live horse to aid learning of “live animal” anatomy. Over the course of 2 weeks, 38 third year veterinary students were randomly allocated into an experimental group, revising topographical anatomy from the “Anato‐Rug,” or a control group, learning topographical anatomy from a textbook. Immediately post activity, both groups underwent a test on live anatomy knowledge and were retested 1 week later. Both groups then completed a questionnaire to ascertain their perceptions of their learning experiences. Results showed that the experimental groups scored significantly higher than the control group at the first testing session, experienced more enjoyment during the activity and gained more confidence in identifying anatomical landmarks than the control group. There was not a significant difference in scores between groups at the second testing session. The findings indicate that the anatomy rug is an effective learning tool that aids understanding, confidence, and enjoyment in learning equine thorax and abdominal anatomy; however it was not better than traditional methods with regards to longer term memory recall. Anat SciEduc. © 2012 American Association of Anatomists.  相似文献   
25.
In this case study our aim was to gain more insight in the possibilities of qualitative formative peer assessment in a computer supported collaborative learning (CSCL) environment. An approach was chosen in which peer assessment was operationalized in assessment assignments and assessment tools that were embedded in the course material. The course concerned a higher education case‐based virtual seminar, in which students were asked to conduct research and write a report in small multidisciplinary teams. The assessment assignments contained the discussion of assessment criteria, the assessment of a group report of a fellow group and writing an assessment report. A list of feedback rules was one of the assessment tools. A qualitative oriented study was conducted, focusing on the attitude of students towards peer assessment and practical use of peer assessment assignments and tools. Results showed that students’ attitude towards peer assessment was positive and that assessment assignments had added value. However, not all students fulfilled all assessment assignments. Recommendations for implementation of peer assessment in CSCL environments as well as suggestions for future research are discussed.  相似文献   
26.
Parents of children with dyslexia experience more parenting stress and depressive symptoms than other parents. The purpose of this study was to evaluate the effects of a cognitive-behavioral group-based program for parents of dyslexic children on parenting stress levels, parent–child homework interactions and parental competencies. 39 children with dyslexia and their mothers were randomly assigned either to a cognitive-behavioral-therapy group or a waiting-list control group. The intervention lasted for 3 months. Mothers filled in the Parenting Stress Index and a paper–pencil questionnaire assessing dyslexia specific stress, conflicts in homework situations and competencies in dealing with dyslexia. Assessment took place before, immediately after, and 3 months following intervention. A multivariate analysis of variance revealed overall effectiveness of the program (partial η2 = .091), which can be mainly attributed to the reduction of parenting stress and dyslexia specific stress as well as an enhancement of parental competencies. Planned contrasts showed that effects could not be approved directly after the training but 3 months later, indicating a delayed effect. Future studies should examine program effects on mothers and fathers on the basis of a larger representative sample.  相似文献   
27.
Abstract

We designed a laboratory test with variable fixed intensities to simulate cross-country mountain biking and compared this to more commonly used laboratory tests and mountain bike performance. Eight competitive male mountain bikers participated in a cross-country race and subsequently did six performance tests: an individual outdoor time trial on the same course as the race and five laboratory tests. The laboratory tests were as follows: an incremental cycle test to fatigue to determine peak power output; a 26-min variable fixed-intensity protocol using an electronically braked ergometer followed immediately by a 1-km time trial using the cyclist's own bike on an electronically braked roller ergometer; two 52-min variable fixed-intensity protocols each followed by a 1-km time trial; and a 1-km time trial done on its own. Outdoor competition time and outdoor time trial time correlated significantly (r = 0.79, P < 0.05). Both outdoor tests correlated better with peak power output relative to body mass (both r = ?0.83, P < 0.05) than absolute peak power output (outdoor competition: r = ?0.65; outdoor time trial: r = ?0.66; non-significant). Outdoor performance times did not correlate with the laboratory tests. We conclude that cross-country mountain biking is similar to uphill or hilly road cycling. Further research is required to design sport-specific tests to determine the remaining unexplained variance in performance.  相似文献   
28.
This study investigated the effects of feedback providing improvement strategies and a reflection assignment on students’ writing motivation, process, and performance. Students in the experimental feedback condition (n = 41) received feedback including improvement strategies, whereas students in the control feedback condition (n = 41) received feedback without improvement strategies. Within each feedback condition, half of the students received a reflection assignment on feedback use and the revision (experimental reflection condition), while the other half received a reflection assignment on feedback perception (control reflection condition). Results indicated that in the experimental feedback condition writing performance gained from the control reflection assignment, while in the control feedback condition it gained from the experimental reflection assignment. Improvement strategies negatively predicted self-efficacy beliefs, especially when initial self-efficacy beliefs were low, and positively predicted planning/revising. Reflections on feedback use and the revision positively predicted mastery goal when mastery goal initially was low or moderate.  相似文献   
29.
Abstract

Although many adult basic education programs offer distance learning (DL) for GED (General Educational Development) and English as a Second Language learners, this topic has received little scholarly attention. This article examines the availability, usage, and effectiveness of DL for rural GED candidates in Pennsylvania; students' demographic and educational characteristics and participation patterns; and the perceived advantages and disadvantages of DL for students and education providers. Data sources included records of 24,143 rural GED students in state-funded programs; GED test takers' demographic survey data; interviews with DL educators and students; and a survey of non-state-funded DL providers. The results show that 4% of rural GED students—primarily young, White, low-income women—participated in DL. Rural DL students were as likely to pass the GED Tests as face-to-face learners. Key advantages and disadvantages of DL for rural GED students are discussed. The study signals great potential and need for expanding DL in rural regions.  相似文献   
30.
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