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This paper takes the view that the problems surrounding the evaluation of university teaching have more to do with the values and structures of the university system rather than of arguments as to whether or not teaching can be evaluated. Following an examination of the value, structural and interpersonal context in which university teaching takes place, an innovation persepective is discussed which explains the process of innovation in terms of the characteristics of the host system. This perspective is then used to assess the acceptability of two broad formal approaches to the evaluation of university teaching: one relating to the evaluation of teachers themselves (‘appraisal’) and the other relating to the evaluation of teaching provision (‘validation’). Although this analysis concludes that appraisal accords more closely with the values and structures of the university system, recent events indicate that universities are having to consider validation as a consquence of earlier failures to evolve mechanisms for the evaluation of teaching more in keeping with their own values.  相似文献   
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ABSTRACT

Apps are becoming increasingly important in education. However, critical educational research has hardly ever undertaken up-close analyses of educational apps. This article provides an extensive analysis of one ‘learning to code' app called Grasshopper. Drawing from the field of Science and Technology Studies, the article adopts a theoretical framework that situates app analyses at the dimensions of apps' situated ecologies, their platform and algorithmic technologies, the enacted user subjectivities and, as the sum of these previous dimensions, the projected learning regimes. Making use of the methodological entry points of app websites, stores and interfaces, the article makes visible and analyzes the app’s infrastructural settings, actively invokes different app situations, and uses these to advance the inquiry by offering a multidimensional point of view that navigates different scalar dimensions of educational apps. In doing so, the article examines learning to code through its concrete sociomaterial practices, and the specific pedagogies and sorts of education that are employed in order to bring about such learning.  相似文献   
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Media managers are facing the challenge of navigating their organizations through a series of extensive changes involving economic, editorial, and technological challenges. Media managers need to develop a better understanding of user behavior and demand. This article addresses the news media landscape and the dynamics at play between print and online media, departing from an elaboration on theories of displacing and complementing effects. The empirical journey focuses on changes over time with regard to how people make use of evening tabloids through print and online. A dataset that comprises annual postal-based surveys carried out from 1998 to 2009 is used for the analysis. The results show an historical change regarding the usage patterns of evening tabloids. First, online news, in general, has acquired a stronger position among users over time, at the expense of the readership of printed evening tabloids. Second, with regard to the interrelated roles of print and online news sites, the latter constitute the primary channel for users—in particular, among 16- to 49-year-olds. Third, gender has the strongest complementing effect, as men are distinguished users of both print and online news. When it comes to explaining displacing effects, these take place among the more highly educated, and the smallest displacing effects are found among 50- to 85-year-olds. The results illustrate the complex dynamics at hand with regard to simultaneous displacing and complementing effects, which nurtures sage managerial implications.  相似文献   
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The Functional Movement Screen (FMS) has been applied to identify predisposed players, mainly in professional sports, and their injury risk. Empirical evidence on the FMS in amateur soccer is scant. Furthermore, the composite FMS score contains upper, lower, and core-related body items, which might be related differently in soccer-specific injury incidences. The aim of this study was twofold: to investigate the relationship between the composite FMS score and the injury incidence of amateur soccer players and to analyze the contribution of single FMS test items to the injury state. In all, 83 amateur male soccer players (23?±?4 years old) were evaluated using the FMS prior to the preparation period of the 2016/2017 season. Injuries (lower extremities, non-contact, time loss) were continuously documented throughout the first competition period. The composite FMS score differed significantly (p?=?0.017) between injured (15.1?±?2.5) and non-injured (16.5?±?2) players. A twofold increase in the risk of injury was found for a composite FMS score of 14 or less. Significant correlations between single test items with a score?≤?2 and injured players were found for the trunk stability push-up exercise (χ2?=?17.4, df?=?1, p?<?0.001, φ?=?0.5) and the rotary stability exercise (χ2?=?6.7, df?=?1, p?=?0.009, φ?=?0.3). The composite FMS score seems to be an indicator of injury risk in amateur soccer with injured players having lower core stability and lower core strength.  相似文献   
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The purpose of this contribution is to present a survey of the recent developments in constructing composite science and technology (S&T) indicators on a national level as well as new evidence of the variability of such S&T indicators which opens the gateway to “country-tuning”. It has become standard practice to combine several indicators for science, technology, and innovation to form composite numbers. Especially in the light of this variability, two questions arise. Firstly, are the results (especially rankings) stable with respect to weights? Secondly, is there hope to define “economically” reasonable weights? In order to provide answers to these questions, we use data from the European Innovation Scoreboard 2005 (EIS 2005) to exemplify our reasoning. Concerning the first question, we give genuine evidence on the existence of immense variability, possibly invalidating the results. Further, we also show that even existing and well-accepted methods, like equal weighting, Benefit of the Doubt weighting (BoD) and principal component analysis weighting (PCA) may lead to drastically differing results. Concerning the second question we will demonstrate that by each composite indicator weighting a set of shadow prices is implied expressing one indicator in terms of another. Whether the weights are sensible should be evaluated on the basis of these shadow prices. It turns out that those implied by EIS 2005 contain strange peculiarities. After that we plead for more care in constructing composite indicators. Especially weights should be chosen on the basis of shadow prices, rather than, say, by equal weighting or other automatic methods. Lastly, we discuss the merit of composite indicators and argue that they have a valuable communication and competition function, but they should be accompanied by multidimensional representations, which provide the basis for the construction of policy measures.  相似文献   
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This paper aims at proposing a new calibration material for microdrilling resistance measurements. Microdrilling resistance is a microdestructive method mainly used in built heritage in order to determine the strength profile in depth. This method is suitable to detect changes in the material cohesion, either due to a different state of preservation or to the action of a consolidant. Calibration materials are often used in microdrilling measurements in order to characterise the drill bit initial value and to correct the variations existing within the initial values of a set of drill bits. Calibration materials are also useful to detect the wear effect on a drill bit due to an abrasive stone. Moreover, such materials can be used for comparing results obtained with different microdrilling machines. In this work, halite was chosen to be tested as a calibration material due to its properties, as low hardness and isotropy. Halite single crystals and halite salt stone from different provenances were tested in order to evaluate the suitability of this material to the requests of a calibration material for microdrilling resistance applications, as for instance being homogeneous, non-abrasive, sensitive and available worldwide. Experimental results show that halite from different provenances is very homogeneous, especially in the crystalline form. This form of halite is slightly more expensive than stone halite; however its costs are comparable to ARS and significantly lower than Macor (other calibration materials commonly used for microdrilling resistance measurements). Due to the advantages of halite for calibration purposes, this material should be further tested by other authors in order to validate our conclusions.  相似文献   
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