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151.
In this paper, we propose a novel method for addressing the multi-equilibria consensus problem for a network of n agents with dynamics evolving in discrete-time. In this method, we introduce, for the first time in the literature, two concepts called primary and secondary layer subgraphs. Then, we present our main results on directed graphs such that multiple consensus equilibria states are achieved, thereby extending the existing single-state consensus convergence results in the literature. Furthermore, we propose an algorithm to determine the number of equilibria for any given directed graph automatically by a computer program. We also analyze the convergence properties of multi-equilibria consensus in directed networks with time-delays under the assumption that all delays are bounded. We show that introducing communication time-delays does not affect the number of equilibria of the given network. Finally, we verify our theoretical results via numerical examples.  相似文献   
152.
The purpose of this study was to investigate the extent to which leadership styles predict school climate, in order to identify whether a relationship exists between principals’ perceived practices of instructional and distributed leadership and their perceptions of school climate (mutual respect and school delinquency), controlling for a net of principal and school characteristics. This research was conducted on a principal data-set from the 2013 Teaching and Learning International Survey (TALIS), which was administered by the Organization for Economic Co-operation and Development (OECD). Several linear regression models with and without the country controlled dummy variables were conducted, respectively. Results indicated that principals’ perceived distributed and instructional leadership practices are significant predictors of staff mutual respect in the school. Nevertheless, such leadership styles did not appear as important factors for school delinquency and violence. School size and socio-economic status turned out to be the two most important factors predicting school safety. These results add nuance to the findings of previous studies that principals’ emphasis on instructional practice and sharing leadership can play a significant role in promoting the trust, collegiality and respect among staff. However, more than such leadership styles may be needed for creating a safe and orderly school environment.  相似文献   
153.
A bulk of research has shown strong relationships between metacognition, creative thinking, autonomy support, and self-efficacy among teachers. However, we could not find research with a large sample of teachers exploring the mediating effects of creative thinking and metacognition on the relationship between autonomy support and self-efficacy. A need for a novel structural equation model (Covariance-based) underlying psychological rationality of said relationships was deemed actual. To that end, firstly the effects of teachers' autonomy support (opportunity and decision-making) on teachers' creative thinking, metacognition, and self-efficacy were tested. Then, the mediating effects of metacognition and creative thinking on the relationship between teachers' autonomy support and teachers' self-efficacy were explored. A simple random-sampling method was utilized to gather 787 teachers' data. The results revealed that decision-making and autonomy opportunity predicted creative thinking, metacognition, and self-efficacy positively and meaningfully. Subsequently, creative thinking as well as metacognition had mediating effects on the effects of autonomy opportunity and decision-making on self-efficacy. In closing, for boosting teachers' skills in autonomy support and self-efficacy, attention should be given to fostering their creative thinking as well as metacognition. The study provides implications and suggestions for research on school psychology and improvement.  相似文献   
154.
Education and Information Technologies - This research aims to develop a valid and reliable test to determine the coding skill levels of 5–7 years old children in early childhood....  相似文献   
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