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41.
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This study examined physiological and performance effects of pre-cooling on medium-fast bowling in the heat. Ten, medium-fast bowlers completed two randomised trials involving either cooling (mixed-methods) or control (no cooling) interventions before a 6-over bowling spell in 31.9±2.1°C and 63.5±9.3% relative humidity. Measures included bowling performance (ball speed, accuracy and run-up speeds), physical characteristics (global positioning system monitoring and counter-movement jump height), physiological (heart rate, core temperature, skin temperature and sweat loss), biochemical (serum concentrations of damage, stress and inflammation) and perceptual variables (perceived exertion and thermal sensation). Mean ball speed (114.5±7.1 vs. 114.1±7.2 km · h(-1); P = 0.63; d = 0.09), accuracy (43.1±10.6 vs. 44.2±12.5 AU; P = 0.76; d = 0.14) and total run-up speed (19.1±4.1 vs. 19.3±3.8 km · h(-1); P = 0.66; d = 0.06) did not differ between pre-cooling and control respectively; however 20-m sprint speed between overs was 5.9±7.3% greater at Over 4 after pre-cooling (P = 0.03; d = 0.75). Pre-cooling reduced skin temperature after the intervention period (P = 0.006; d = 2.28), core temperature and pre-over heart rates throughout (P = 0.01-0.04; d = 0.96-1.74) and sweat loss by 0.4±0.3 kg (P = 0.01; d = 0.34). Mean rating of perceived exertion and thermal sensation were lower during pre-cooling trials (P = 0.004-0.03; d = 0.77-3.13). Despite no observed improvement in bowling performance, pre-cooling maintained between-over sprint speeds and blunted physiological and perceptual demands to ease the thermoregulatory demands of medium-fast bowling in hot conditions.  相似文献   
43.
Sustainability transitions: An emerging field of research and its prospects   总被引:4,自引:1,他引:3  
Sustainability oriented innovation and technology studies have received increasing attention over the past 10-15 years. In particular, a new field dealing with “sustainability transitions” has gained ground and reached an output of 60-100 academic papers per year. In this article, we aim to identify the intellectual contours of this emerging field by conducting a review of basic conceptual frameworks, together with bibliographical analysis of 540 journal articles in the field. It is against this background that we position the six papers assembled in a special section in Research Policy. These papers pave the way for new conceptual developments and serve as stepping-stones in the maturation of sustainability transition studies, by linking with the scholarly literatures of management studies, sociology, policy studies, economic geography, and modeling.  相似文献   
44.
Within sport, a tremendous amount of effort is committed to the on-the-field performance of athletes and coaches, neglecting the off-the-field performance and development of sport managers. This study examines the impact of human resource training on the performance of five Canadian national sport organizations (NSO) and their managers (N = 22). Data were collected on three outcome variables (learning, individual performance, organizational performance) and three mediating variables (motivation to transfer, training design, organizational climate) at three time measures (pretraining, post-training1, post-training2). Results indicate that training improves the learning and individual performance of sport managers, as well as the organizational performance of NSOs. Varying relationships were found at each of the three time measures, demonstrating that a progression to training-related performance change exists. Implications and future research directions are discussed and highlighted the need for on-going training opportunities for Canadian sport managers.  相似文献   
45.
This paper explores the ways in which sixth‐form students in Milton Keynes negotiate their identities and the symbolic significance they attach to leisure activities in the process of doing this. The paper draws upon qualitative, young‐person‐centred interviews with sixth formers in state and private schools. We address the investments of sixth formers in constructing themselves as autonomous individuals and argue that they do so from a position of middle‐class subjects‐in‐the‐making. Through an inversion of Willis’ (1977 Willis, P. 1977. Learning to labour, Aldershot: Gower.  [Google Scholar]) (focus, our concern is to make explicit the implicitly middle‐class identities sixth formers were forging. We argue that the identity‐work of sixth formers plays a part in the reproduction of school‐based class inequalities by pathologising working‐class students while constructing themselves as bourgeois liberal individuals.  相似文献   
46.
This article gives the background to the introduction of a statutory system of staff appraisal in schools in England. It explains and provides insights into the various stages of the appraisal process from a management perspective. It begins from the premise that a manager is responsible for the performance of staff which he or she manages. Finally, it discusses a number of issues which are problematic and which need to be resolved if a staff appraisal scheme is to be successful from both the individual's and the school's viewpoints.  相似文献   
47.
This article describes 2 effective school improvement projects in primary education. In The Netherlands, there is a long history of failing innovations in education. The 2 programmes are selected because they are known to be effective. They have almost the same goals (strengthen the school's capacity for managing change, improving teachers' capacity to adapt instruction to student's needs, and prevent and reduce disadvantage, especially in reading and arithmetic) and theoretical background (a balanced mix of the school and class effectiveness knowledge and the concepts of school improvement). They use, however, partly different strategies for school improvement. The characteristics (aims, theory, design, implementation, improvement, outcomes) of both programmes are described. These data are used to discuss what lessons are learned for effective school improvement.  相似文献   
48.
In small businesses with no employees, learning environments have a low learning readiness. Consequently, learners need to rely on their own agency to shape their learning experiences. Results from a study of agricultural entrepreneurs indicated that the components of motivation and self-regulated learning strategies shape learner's agency and explain learning environment configuration in small businesses with no employees. Configuration of the learning environment was found to be a weak determinant of the learning performance of these learners. However, results showed that prior performance of learners in small businesses with no employees dictates how their agency operates and what learning effect is achieved; higher prior performance results in higher learning effects. We conclude that mechanisms that underlie learning in traditional learning environments work similarly in learning environments in small businesses with no employees.  相似文献   
49.
50.
This paper presents the results of a study evaluating student perceptions of online assignment submission. 47 students submitted assignments and received feedback via features within the Virtual Learning Environment Blackboard™. The students then completed questionnaires comparing their experience of online submission and feedback with traditional methods.
Results indicated that 88% of students reported a time saving and many reported financial benefits using online submission. 93% of students preferred having their feedback available online rather than printed and handed to them. Overall, students preferred online assignment management to postal or physical hand-in. The main disadvantage of electronic submission appeared to be student distrust of the receipt system.
The use of online assignment submission and management is recommended for use in Higher Education establishments where students may be remote. It is most suitable for assignments that do not require inclusion of many images.  相似文献   
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