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The main focus of this study was to discern the effect of different topics on the dynamics of one of the main variables of positive psychology, foreign language enjoyment (FLE). To do this, we used an idiodynamic method to explore the rapid moment-to-moment changes of FLE. Seven female university students engaged in a conversation involving both simple and difficult topics, and self-rated their moments of experiencing enjoyment during the conversation process. The results indicate that the dynamicity of enjoyment emerges not only within individuals, but also across individuals intra-personally under the influence of conversational topics. Furthermore, the idiodynamic method provided us with the opportunity to examine the underlying factors of the dynamic fluctuations of FLE and gain a deeper insight into FLE as a dynamic system.  相似文献   
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This paper presents an improved model for global sunshine duration estimation. The methodology incorporates geostationary satellite images by including snow cover information, sun and satellite angles and a trend correction factor for seasons, for the determination of cloud cover index. The effectiveness of the proposed methodology has been tested using Meteosat geostationary satellite images in the visible band with a temporal resolution of 1 h and spatial resolution of 2.5 km×2.5 km, for the Brue Catchment in the southwest of England. Validation results show a significant improvement in the estimation of global sunshine duration by the proposed method as compared to its predecessor (R 2 is improved from 0.68 to 0.83, root mean squared error (RMSE) from 2.37 h/d to 1.19 h/d and the mean biased error (MBE) from 0.21 h/d to 0.08 h/d). Further studies are needed to test this method in other parts of the world with different climate and geographical conditions.  相似文献   
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In order to acquire the numerous advantages of electronic commerce, issue of evaluating electronic commerce adoption has its own importance. For this purpose, based on the scientific research and literature reviews, technical, organizational and inter-organizational are identified as the three dimensions for evaluating electronic commerce adoption of the companies. Thereafter, expert viewpoints were put forward about criteria and indicators in each of the above-mentioned dimensions. On the basis of identified indicators and criteria, a framework was developed for evaluating the electronic commerce adoption in Iranian companies. Furthermore in this research, the framework is tested in 27 Iranian companies. The result indicates that there is a significant positive relationship between degree of electronic commerce adoption and stages of electronic commerce development in the companies. Based on the findings and test of the framework, it will present necessary guidelines for evaluating electronic commerce adoption.  相似文献   
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The purpose of this study is to propose a framework to evaluate the entrepreneurship intensity (EI) of Iranian state universities. In order to determine EI, a hybrid multi-method framework consisting of Delphi, Analytic Network Process (ANP), and VIKOR is proposed. The Delphi method is used to localize and reduce the number of criteria extracted from a deep literature review, according to the social and economic conditions of Iranian state universities by using an expert panel, including sixty-eight country-wide academicians and practitioners. After that, a group approach to ANP was utilized as an evaluation method to derive the weights of each criterion. Next, the evaluation data were gathered through a questionnaire, and, finally, the compromise ranking of universities was calculated using the VIKOR method. Moreover, this study applies weight-variance analysis (WVA) to suggest improvement actions. The paper proposes an evaluation framework for determining the performance of entrepreneurship development initiatives in universities. By using this framework, twenty-two Iranian state universities are evaluated in terms of their EI, and the results are discussed.  相似文献   
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The purpose of the present study was to assess to what extent moments of experiencing enjoyment in communicating in English as a foreign language is transparent to the teacher and the peers within the ecology of the classroom using an idiodynamic approach. To do this, we explored four university students’ self, teacher and peers reading of nonverbal language enjoyment cues in terms of their face, gesture, gaze, vocalics and posture in a course of general English. The participants prepared for a short presentation on a favourable subject and were video recorded to self-rate themselves immediately after the presentation using Anion Variable Tester V2 software. Two peers, one among the participants’ inner circle friends and the other an outer-circle classmate, and the teacher rated the videos of the presentations. The ratings were compared to find points of convergence indicating the extent of transparency of enjoyment in communication. The findings of the study indicate mixed and dynamic outcomes which, confirming the unstable and complex nature of enjoyment, show that transparency of enjoyment in foreign language communication seems to be an illusion.  相似文献   
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An ego network is an individual’s social netwrk relationships with core members. In this study, the ego network parameters in online discussion spaces of high- and low-performing students were compared. The extent to which students’ ego networks changed over the course were also analyzed. Participation in 7 weeks of online discussions were analyzed for 12 high-performing students and 9 low-performing students. Results suggested that ego networks’ compositions of high- and low-performing students were significantly different. Particularly, high-performing students had denser ego networks and tended to exhibit a higher level of centralities than low-performing students. Results of network visualization indicated that high-performing students increased and kept their networks stable over the course in comparison to low-performing students, who had fragmented networks. Several networks’ change mechanisms for high- and low-performing groups are also identified and discussed.  相似文献   
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