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31.
Through an investigation of the public, professional, and private life of the Darwinian disciple George John Romanes, this essay seeks a better understanding of the scientific motivations for defending the practice of vivisection at the height of the controversy in late Victorian Britain. Setting aside a historiography that has tended to focus on the arguments of antivivisectionists, it reconstructs the viewpoint of the scientific community through an examination of Romanes's work to help orchestrate the defense of animal experimentation. By embedding his life in three complicatedly overlapping networks-the world of print, interpersonal communications among an increasingly professionalized body of scientific men, and the intimacies of private life-the essay uses Romanes as a lens with which to focus the physiological apprehension of the antivivisection movement. It is a story of reputation, self-interest, and affection.  相似文献   
32.
Within the UK, the "Long Term Athlete Development" (LTAD) model has been proposed by a variety of national governing bodies to offer a first step to considering the approach to talent development. The model, which is primarily a physiological perspective, presents an advancement of understanding of developing athletic potential alongside biological growth. It focuses on training to optimize performance longitudinally, and considers sensitive developmental periods known as "windows of opportunity". However, it appears that there are a number of problems with this theoretical model that are not necessarily transparent to coaches. Principally, the model is only one-dimensional, there is a lack of empirical evidence upon which the model is based, and interpretations of the model are restricted because the data on which it is based rely on questionable assumptions and erroneous methodologies. Fundamentally, this is a generic model rather than an individualized plan for athletes. It is crucial that the LTAD model is seen as a "work in progress" and the challenge, particularly for paediatric exercise scientists, is to question, test, and revise the model. It is unlikely that this can be accomplished using classical experimental research methodology but this should not deter practitioners from acquiring valid and reliable evidence.  相似文献   
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Learning Environments Research - Background When novice teachers start working in a school, it is vital that they are aware of the moral aspects of the work environment and can use their moral...  相似文献   
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From all over the world there have been calls from governmental institutions to address a shortage of high quality teachers. As changing jobs generates new experiences, job mobility could be a way for teachers to adhere to the government’s call to develop themselves into the teaching force needed. The research question of this study was: How do the experience with mobility and the attitude towards mobility of Dutch secondary school teachers shape their intentions to be mobile? A secondary analysis was conducted on data collected among 1261 respondents. Attitudes towards mobility were found to be linked to past experience with mobility and there is a strong relationship between the attitude towards mobility and the intention to be mobile. The control variables age, experience in teaching, and type of employment seem to have an effect as well. Implications for the teacher shortage issue are discussed.  相似文献   
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Policy-makers making decisions on the implementation of school-based sexuality education (SE) programmes face two important questions: (1) what are the costs of implementing and scaling up SE programmes, and (2) what are the impacts? This paper responds to these questions by retrospectively assessing costs, impact and cost-effectiveness of the national school-based SE programme in Estonia 1997–2009. The three-year curriculum had been taught to 190,000 students at the end of 2009. The cost of reaching one student was USD 32.90 and the total costs were USD 5.6 million. There has been a remarkable improvement in sexual health indicators in the age groups 15–19 and 20–24 years in Estonia between 2001 and 2009. During this period, annual abortions, STIs and diagnosed HIV infections in the age groups were reduced by 37%, 55% and 89%, respectively. It is difficult to assess to what extent the improvements in these sexual health indicators are attributable to the SE programme. Nevertheless, our conservative threshold analysis indicates that the Estonian SE programme could be considered cost-saving if only 4% of the observed reductions in HIV infections are attributable to the programme. There is strong evidence, therefore, to support that the Estonian school-based sexuality programme has been cost-effective.  相似文献   
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The juvenile justice system established in Scotland in 1971, in which lay volunteers play a central part, provides a framework for making decisions about children in need of care and protection as well as those who have committed delinquent acts. Although cases of child abuse and neglect have come increasingly to the attention of children's hearings in recent years, they nevertheless constitute a small fraction of a workload dominated by cases of delinquency and truancy. A recent Scotland-wide study of the hearings system therefore gave only limited attention to the processing of abuse and neglect referrals. As a step towards rectifying this imbalance, a separate enquiry was carried out in 1981, when 43 such hearings were systematically observed and the participating panel members interviewed. Examination of these results indicates a heavy dependence on social workers' recommendations, a reluctance to open up sensitive areas for discussion, even though these may be of central importance, and an apparent lack of curiosity about the arrangements made for children removed from their homes, and the implications of these. In general, it is concluded that the anxiety generated by child abuse and neglect has prevented panel members from recognizing the distinctive features of their role in the decision-making process and has led them to fall back on an inappropriate model of practice derived from delinquency hearings. An alternative model is outlined.  相似文献   
40.
The primary aim of this study was to determine whether variations in rebound speed and accuracy of a tennis ball could be detected during game-simulated conditions when using three rackets strung with three string tensions. Tennis balls were projected from a ball machine towards participants who attempted to stroke the ball cross-court into the opposing singles court. The rebound speed of each impact was measured using a radar gun located behind the baseline of the court. An observer also recorded the number of balls landing in, long, wide and in the net. It was found that rebound speeds for males (110.1+/-10.2 km.h-1; mean+/-s) were slightly higher than those of females (103.6+/-8.6 km.h-1; P<0.05) and that low string tensions (180 N) produced greater rebound speeds (108.1+/-9.9 km.h-1) than high string tensions (280 N, 105.3+/-9.6 km.h-1; P<0.05). This finding is in line with laboratory results and theoretical predictions of other researchers. With respect to accuracy, the type of error made was significantly influenced by the string tension (P<0.05). This was particularly evident when considering whether the ball travelled long or landed in the net. High string tension was more likely to result in a net error, whereas low string tension was more likely to result in the ball travelling long. It was concluded that both gender and the string tension influence the speed and accuracy of the tennis ball.  相似文献   
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