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91.
In order to understand the process of identity formation in a community of practice, Wenger (2002) proposes a matrix framework whereby three qualities (connectedness, expansiveness and effectiveness) are matched against three modes of belonging (engagement, imagination and alignment). In this paper we use this framework to analyse the experiences of two teacher–mentors and interpret how their identities are formed during the process of mentoring student–teachers. Factors that contribute significantly to the development of their identity include the school culture, the ‘personalities’ of the other community members, and the influence of other relevant communities of practice.  相似文献   
92.
Given the rise in obesity and the positive exercise effects in curbing obesity levels, exercise promoters are expected to use technological applications—social media and fitness applications—in their exercise motivational programs. The purpose of this article is to critique the use of social media and fitness apps as both ineffective and potentially harmful. An alternative approach is proposed where phronesis (practical wisdom) in exercise participation can be achieved via physical and cognitive mastery of the action for its own sake (real techne-art, embodiment). Emphasizing exercise outcomes (e.g., energy expenditure) captured by external devices distracts from embodied and phronetic action. Drawing on the philosophies of phronesis, techne, and embodiment, exercise promoters should emphasize embodied exercise experiences via mastery of action, social interactions, and connectedness to nature. They should target real action in real communities, and not emotionless and meaningless online forums about how to become the ultimate virtual fitness buff.  相似文献   
93.
Whilst some philosophical progress has been made on the ethical evaluation of playing video games, the exact subject matter of this enquiry remains surprisingly opaque. ‘Virtual murder’, simulation, representation and more are found in a literature yet to settle into a tested and cohesive terminology. Querying the language of the virtual in particular, I suggest that it is at once inexplicit and laden with presuppositions potentially liable to hinder anyone aiming to construct general philosophical claims about an ethics of gameplay, for whom assumptions about the existence of ‘virtual’ counterparts to morally salient phenomena may prove untrustworthy. Ambiguously straddling the pictorial and the performative aspects of video gaming, the virtual leaves obscure the ways in which we become involved in gameplay, and particularly the natures of our intentions and attitudes whilst grappling with a game; furthermore, it remains unclear how we are to generalise across encounters with the virtual. I conclude by briefly noting one potential avenue of further enquiry into our modes of participation in games: into the differences which a moral examination of playfulness might make to ethical evaluation.  相似文献   
94.
Abstract

The purpose of this study was to determine if factor patterns of selected sports skills were similar for two samples, a skilled sample and one consisting of a wide range of skills. Comparisons were also made with kinesiological evidence regarding the patterning of basic sports skills. Data consisting of performance scores on various sports skills were available for 166 high school girls. Out of this sample, a smaller sample was drawn consisting of 69 girls who were above average in skill. Two factor models, alpha and incomplete image analysis, were used in the analysis of this data. The factor pattern of selected sports skills performed by subjects above average in skill was similar in many respects to that of a sample which included a wide range of skill. The primary difference lay in the clustering of overarm skills which appeared in the above-average factor pattern. The overarm and push patterns of the above-average sample resembled the patterns of skill obtained through kinesiological analysis. The structure of kicking, underarm, and sidearm skills remained obscure, based on the results of factor analytic techniques.  相似文献   
95.
Abstract

Theories causing rotation of the body in diving were critically reviewed and a statement relating angular momentum to both the angle of lean and the angle of force was presented. Equations were developed by which the partition of energy between rotation and translation could be computed.  相似文献   
96.
Abstract

Students (N = 104) enrolled in four low fitness, one middle fitness, and one high fitness class in basic physical education classes at the University of Connecticut participated in a 4-week program of isometric exercises done with an adjustable nylon belt which was stabilized against various body segments. Low, middle, and high fitness classes were compared in the amount of improvement made in the 5 items in which significant gains had been made. The MWF classes which did 30 min. of isometric exercises for 12 class meetings were compared to the TTh classes which met for 8 class meetings and which did the same isometric exercise program and in addition did stretching exercises and ran a mile.

When all groups were treated together, mean gains of 1.1 in. in the vertical jump, .74 sec. in the agility run, .17 sec. in the 30-yd. dash, 151.9 lb. in the leg lift, and 57.0 lb. in the back lift were made. These were all significant at the 0.005 to the 0.0005 level. Small but significant gains were made in right and left grip, the Fait endurance hang, and the 380-yd. run. The low fitness classes made greater improvements in the leg lift, the vertical jump, and the agility run than did the middle or high fitness groups. The high fitness class made greater improvements in the back lift and in the 30-yd. dash than did the low or middle fitness classes. The classes which did only isometric exercises for a half-hour three times each week for 4½ weeks made greater mean gains in the vertical jump, the agility run, the 30-yd. dash and the back lift than did the classes which met for 60-min. periods twice each week for 4½ weeks and did stretching exercises and running in addition to the isometric exercises. However, the latter made greater gains in the leg lift.  相似文献   
97.
A previous article in Higher Education in Europe (Vol. 24, No. 2, 1999), by three of the authors of the present article, outlined the beginnings of an on-line course, "Marketing Theory and Practice" (MTP), offered by the Department of Marketing of Monash University in Australia. It noted the opportunities such a development presented in terms of collaboration. Following the successful introduction of MTP on-line (http://www.buseco.monash.edu.au/Subjects/MKT/ MTPonline/) into the undergraduate programme, the project team applied for a significant funding grant to implement a department-wide strategy for the electronic delivery of marketing education. This implementation includes the development of an E-Master's degree in Marketing, details of which are discussed in this article.  相似文献   
98.
To what extent do teachers use questions to encourage deeper thinking and elicit fuller responses? How do teachers use the levels of questions and wait time as a teaching technique? How do teachers make space for students to talk together so that their thoughts are visible to other students? This article seeks to provide answers to these important questions through a review of the literature that begins with a study of the history of questioning, and then turns to the following topics: developing higher level thinking through questioning strategies; the role of wait time within the context of classroom climate and peer interactions; and higher order questioning strategies aligned with student achievement in reading and language arts. Although the author's frame of reference for how these issues play out is within the context of a school where students’ ability to articulate understanding and their own point of view is purposefully promoted and highly valued, the insights will have broad applicability across a full spectrum of schools.  相似文献   
99.
This paper describes differences in mathematical problem-solving performance of third-grade gifted and fifth-grade average students observed during an eight week period. Results indicated that such factors as attitude, motivation, and belief systems were important to performance. In addition there were major differences in problem-solving behavior between the girls and boys in this study. Because these results were incidental to the original questions of the study (Buchanan, 1984), they were deemed especially significant. Four groups, one of third-grade gifted boys, one of third-grade gifted girls, one of average boys and one of fifth-grade average girls met with the experimenter twice a week for eight weeks to solve a variety of mathematical problems. In the global analysis of video tapes of all sessions and post hoc statistical analysis of selected quantifiable variables, differences in problem-solving performance were best described in terms of motivation, beliefs about mathematics, problem-solving strategies, and means of achieving satisfaction. In addition, the girls' groups were more ego-involved and social; they completed fewer problems and had longer solution times than the boys' groups. Further holistic research is needed to describe the complex interaction that occurs during mathematical problem solving in group situations. Then, appropriate intervention might be designed to assure that both boys and girls have an opportunity to perform at optimum levels.  相似文献   
100.
This paper examines the ways in which British Chinese pupils are positioned and represented within the popular/dominant discourse of teachers working in London schools. Drawing on individual interviews from a study conducted with 30 teachers, 80 British Chinese pupils and 30Chinese parents, we explore some of the racialised, gendered and classed assumptions upon which dominant discourses around British Chinese boys and girls are based. Consideration is given, for example, to teachers’ dichotomous constructions of British Chinese masculinity, in which British Chinese boys were regarded as ‘naturally’ ‘good’ and ‘not laddish’, compared with a minority of ‘bad’ British Chinese boys, whose laddishness was attributed to membership of a multiethnic peer group. We also explore teachers’ constructions of British Chinese femininity, which centred around remarkably homogenised representations of British Chinese girls as ‘passive’ and quiet, ‘repressed’, hard‐working pupils. The paper discusses a range of alternative readings that challenge popular monolithic and homogenising accounts of British Chinese masculinity and femininity in order to open up more critical ways of representing and engaging with British Chinese educational ‘achievement’.  相似文献   
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