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71.
Victor Bekkers Henri Beunders Arthur Edwards Rebecca Moody 《The Information Society》2013,29(4):209-219
In November 2007, Dutch secondary school students revolted against a requirement known as the “1040-hour norm.” New Web technologies, like instant messaging, YouTube, and social networking sites, played an important role in the mobilization effort. In this article, the authors argue that these technologies facilitate a shift toward micromobilization by individuals and small groups. In this “1040-hour norm” case study, the authors analyze how the course of the political agenda-setting process is being transformed through the interplay between processes of meso- and micromobilization, and through new micro-to-mass media crossover effects. When supported by micromedia, the effects of micromobilization can create strategic surprises for traditional intermediary organizations and policymakers. 相似文献
72.
In this paper, the problem of stability analysis for neural networks with time-varying delays is considered. By the use of a newly augmented Lyapunov functional and some novel techniques, sufficient conditions to guarantee the asymptotic stability of the concerned networks are established in terms of linear matrix inequalities (LMIs). Three numerical examples are given to show the improved stability region of the proposed works. 相似文献
73.
Victor H.A. Okazaki André L.F. Rodacki Miriam N. Satern 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(2):190-205
The ability to shoot an effective jump shot in the sport of basketball is critical to a player's success. In an attempt to better understand the aspects related to expert performance, researchers have investigated successful free throws and jump shots of various basketball players and identified movement variables that contribute to their success. The purpose of this study was to complete a systematic review of the scientific literature on the basketball free throw and jump shot for the purpose of revealing the critical components of shooting that coaches, teachers, and players should focus on when teaching, learning, practising, and performing a jump shot. The results of this review are presented in three sections: (a) variables that affect ball trajectory, (b) phases of the jump shot, and (c) additional variables that influence shooting. 相似文献
74.
Reading-disabled children seem to have considerable difficulties in acquiring phonological recoding skills, which are considered to be very important in becoming a proficient reader. It is hypothesized that speech feedback may support the development of phonological recoding skills. The aim of the present study is to investigate the use of speech feedback during independent word reading and its effects on the remediation of reading skill. Three different conditions for independent practice were employed. For 17 subjects high-quality digitized speech was available on call. When speech feedback was requested either whole-word sound was provided (n = 8) or segmented-word sound was presented (n = 9). A control group (n=14) did not receive speech feedback at all. In a posttest both practised and nonpractised words were presented. Both help call behaviour during practice and changes in reading rate and accuracy from pretest to posttest were analyzed. It was found that speech feedback requests were not dependent on word difficulty. More calls for whole-word sound were made than for segmented-word sound, while latency times for whole-word sound requests were shorter than for segmented-word sound requests. Both forms of speech feedback were equally effective in reading practice words which were initially read incorrectly. However, there was a tendency for the learning effect on nonpractised initially hard-to-read words to be largest when segmented-word sound had been available. It is concluded that, whenever the goal of reading instruction is to memorize particular words, whole-word sound as well as segmented-word sound can be used. However, when more productive skills are aimed at, the most promising way of giving support is to present segmented-word sound, although only a nonsignificant tendency for transfer was found in the present study. 相似文献
75.
One hundred ninety-six undergraduates who received feedback on a midterm examination participated in this study. A random subgroup formed a cross-validation sample. Through the use of regression analysis, it was found that both objective and subjective performance ratings did not predict subjects' expectancy ratings but did substantially predict their ratings of pride/shame. Inclusion of attributions enhanced prediction of expectancy but not pride/shame ratings of subjects. On the basis of the findings from this study, a partial reformulation of Weiner's attributional model was proposed. In addition, numerous methodological concerns associated with attributional research were examined. 相似文献
76.
Victor R. Neuféld M.D. 《Assessment & Evaluation in Higher Education》1982,7(3):203-215
The assessment system of a Canadian medical education program is described. The M.D. Program at McMaster University features the central use of clinical cases as the basis for learning, and the fostering of independence in learning by students. The assessment system, designed to match the objectives and methods of learning, is guided by several principles. These include a balanced emphasis on a range of objectives, the use of on‐going informal feedback, defined and shared responsibilities in assessment, and the design and use of measures which most appropriately match the objectives. More than ten years of experience has pointed out several lessons: if self‐directed learning is held as important, there is a trade‐off between excessively specific objectives, on the one hand, and too little guidance on the other. This attempt to create a balance between these extremes produces a degree of unevenness in the assessment system. External influences such as the national licensing examinations have some effect on the learning climate. It is predicted that the basic elements of the assessment system will remain in place, but some specific changes will occur. These include a clearer statement of objectives on which assessment can be based, the improvement of measurement tools, and an increased emphasis on the training of those who participate in the assessment system. 相似文献
77.
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79.
Current research indicates that student engagement in scientific argumentation can foster a better understanding of the concepts and the processes of science. Yet opportunities for students to participate in authentic argumentation inside the science classroom are rare. There also is little known about science teachers' understandings of argumentation, their ability to participate in this complex practice, or their views about using argumentation as part of the teaching and learning of science. In this study, the researchers used a cognitive appraisal interview to examine how 30 secondary science teachers evaluate alternative explanations, generate an argument to support a specific explanation, and investigate their views about engaging students in argumentation. The analysis of the teachers' comments and actions during the interview indicates that these teachers relied primarily on their prior content knowledge to evaluate the validity of an explanation rather than using available data. Although some of the teachers included data and reasoning in their arguments, most of the teachers crafted an argument that simply expanded on a chosen explanation but provided no real support for it. The teachers also mentioned multiple barriers to the integration of argumentation into the teaching and learning of science, primarily related to their perceptions of students' ability levels, even though all of these teachers viewed argumentation as a way to help students understand science. © 2012 Wiley Periodicals, Inc. J Res Sci Teach 49: 1122–1148, 2012 相似文献
80.
Victor M. H. Borden Genevieve G. Shaker Brittany L. Kienker 《Research in higher education》2014,55(2):196-217
This study explores the association between propensity toward giving and personal and positional characteristics of faculty and staff across 3 years within a large, public, multi-campus higher education institution. Informed by the literatures on organizational identity and commitment, faculty and staff giving, and the higher education workforce, the study employs a hurdle analysis to estimate the predictors of likelihood of donating (the hurdle) and the amount given among those who donate. Following up on earlier research by the authors that demonstrated that academic employees and employees who are institutional alumni are more likely to give, the present study explores the interaction between these roles and offers a more powerful model for predicting the amount given. The results of this study have implications for understanding how organizational commitment and identification may be relevant in addressing giving, for institutional fundraising, and for building institutional loyalties. 相似文献