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This investigation examines the effects of teachers’ training on pupils’ achievement in French and mathematics. The aim of the research is to compare the effectiveness of three samples of elementary school teachers with different levels of experience and training. Using a multilevel model, the results demonstrate that training enhances the effectiveness of novice teachers. In addition, experience was also found to have a positive effect. Neither training nor experience have a significant effect on equity, defined as the capacity of reducing the initial gap between high and low achieving pupils.  相似文献   
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Long‐term teacher effects on pupils' learning gains   总被引:1,自引:1,他引:0  
Many studies have demonstrated that a teacher has a substantial impact on how much pupils learn. However, research on the long‐term effects of teachers is scarce, and the results obtained so far are inconsistent. Some studies have concluded that teacher effects are relatively permanent, while others claim that they fade away more or less rapidly over time. The present study was conducted at the elementary‐school level in France. Multilevel random crossed models were used to assess teacher effects over a period of two school years. The assessments showed that the pupils' test scores in French and mathematics after two years were linked to the second‐year teachers but not to the first‐year ones. These results suggest that teacher effects on pupils' learning gains wear off quickly over time. In other words, ‘immediate’ teacher effects on learning do seem to exist, but not long‐term ones. The merits of multilevel random crossed models in this research field are presented, and the potential limitations of the results obtained are discussed.  相似文献   
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提出了一种基于Chamfer3-4距离变换和模拟退火优化的方法,用于X射线图像和CT图像间的配准.首先,建立一个初始化的几何变换矩阵.为了便于计算,通过X射线设备的几何模型重新建出变换矩阵.然后,通过定义三维投影和二维物体图像之间的距离,并且通过优化算法来使之达到最小.该方法同样被用于医学介入手术中,处理从三维图像工作站中获取的主动漫游数据.  相似文献   
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INTRODUCTION With the development of novel wireless tech- nologies and increasing available bandwidth, multi- media applications over wireless networks become attractive for both businesses and end users. Fast de- ployment of Wi-Fi HotSpots, increase in wireless coverage of remote habitable areas (Wi-Max, or wireless mesh networks), improved data services over the 2G cellular systems and the long awaited debut of 3G wireless services offer many potential and inter- operable communicatio…  相似文献   
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In 1999, the Italian Arte Povera artist Michelangelo Pistoletto and other artists laid the foundations of The University of Ideas (UNIDEE), an exceptional international artist‐in‐residence programme with a strong ideological foundation. As a sociologist of culture I had the opportunity to do research in the huge organization for a month by doing participant observation, in‐depth interviews and discourse analysis. In this article the educational programme of UNIDEE is interpreted in sociological terms. First of all it will be contextualized in the artistic work of Michelangelo Pistoletto through his concept of the mirror and his a‐modern idea of ‘The Minus Artist’. In the second part Pistoletto's artistic, political and economic movement Cittadellarte, in which UNIDEE is based, will be described. Finally UNIDEE will be analysed as a model for art education on the border of modernity attempting to redefine the position of art and of the artist in a globalizing world.  相似文献   
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The aim of this article is to consider the psychological mechanisms that may prevent individuals from achieving religious tolerance and religious pluralism. After defining these concepts and explaining why they are desirable outcomes, four psychological obstacles to the achievement of religious tolerance and religious pluralism will be explored by considering both research in psychology and the literature on religious education. The aim of identifying these obstacles is to enable us to suggest how they might be overcome through education, and what the implications for religious education are.  相似文献   
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ABSTRACT

We report on biological control of an active infestation by biscuit beetles (Stegobium paniceum) of museum objects (Old Masters paintings) in the storage facilities of the Museum of Fine Arts in Vienna. Because chemical and non-chemical treatment methods would have been very problematic, the release of parasitic wasps (Lariophagus distinguendus) was discussed and accepted by the director of the collection. We released 3000 wasps every month from August 2013 until September 2014 in the two infested storage rooms and monitored the activity of biscuit beetles on sticky blunder traps and light traps, and also by visual inspection. In the insect monitoring of 2014 until 2018 no more biscuit beetles were found in the two storage depositories, showing that the treatment was 100% successful. To our knowledge, this is the first proof of a fully successful biological control of a museum pest using parasitoids only, and also of stored product/food pest, outside a laboratory experimental setup. This biological pest control method allowed avoiding negative side effects such as contamination from treatments with biocides, or costly logistics in case of chemical-free methods.  相似文献   
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