排序方式： 共有5条查询结果，搜索用时 15 毫秒
1
1.
引江济湖是缓解水污染危机的综合治理措施之一。本文针对目前引江济湖工程认识上的一些分歧和应用上的一些误区,阐述了对引江济湖工程的理解与认识,认为引江济湖是一种良好的湖泊水体生态修复措施,并针对引江济湖可能存在的问题进行了分析,重点探讨了引江济湖对长江干流可能形成的影响,指出深入研究引江济湖对长江干流影响的重要性。 相似文献
2.
Alin Olteanu 《Journal of Philosophy of Education》2014,48(3):457-473
The recent development of biosemiotics has revealed the achievement of knowledge and the development of science to be the results of the semiosis of all life forms, including those commonly regarded as cultural constructs. Education is thus a semiosic structure to which evolution itself has adapted, while learning is the semiotic phenomenon that determines the renewal of life itself. Historically, it was a semiotic paradigm that determined the emergence of institutions such as universities and that underpinned the development of liberal education. The present article considers the history of education in terms of sign emergence and evolution, regarding education as currently being conceived and practised as a stage in the general evolutionary action of signs. This approach differs from the prevailing modern approaches to education, which are mostly applied psychology and sociology. 相似文献
3.
4.
Loredana R. Diaconu-Gherasim Luminita M. Iacob Alin Gavreliuc 《Cultura y Educación》2017,29(4):728-761
This study explored how ethnic membership relates to children’s academic achievement and goal orientations and whether there are ethnic differences in how goal orientations are linked to academic achievement. Further, we investigated whether these relations vary based on the geographical region where ethnic groups live. The sample included 361 children (179 girls), age 12–15 years, from two regions in Romania, Banat (n = 237) and Moldavia (n = 124). Ethnic differences in academic achievement were found only between majority and Hungarian minority ethnic groups who live in different areas, whereas ethnic differences in goal orientations were found between minority and both groups of majority children (living in the same and in different geographical regions). The strengths of the associations between goals and academic achievement were not significantly different based on ethnic and regional background. The findings highlight the importance of cultural (i.e., ethnicity) and contextual (i.e., regional area) factors in relation to children’s achievement and motivation (i.e., goal orientations). Additionally, our findings show that the relations between academic achievement and goal orientations are similar across the analysed ethnic and regional groups. 相似文献
5.
综述了独立分量分析（ICA）问题的模型、原理，以及定义在基本ICA问题的上的负熵最大化算法。说明了ICA在地理与环境问题中的应用。 相似文献
1