Characterization of Holmes in The Adventure of Speckled Band

Sherlock Holmes is the fictional creation of Sir Arthur Conan Doyle. In The Adventure of the Speckled Band, Sir Arthur Conan Doyle has succeeded in creating the image of Sherlock Holmes. He is not only...     

数学直觉思维探索

首次提出了数学直宽思维模式，讨论了它的一些特定的研究问题（例如灵感问题）。     

English secondary students’ thinking about the status of scientific theories: consistent,comprehensive, coherent and extensively evidenced explanations of aspects of the natural world – or just ‘an idea someone has’

Teaching about the nature of science (NOS) is seen as a priority for science education in many national contexts. The present paper focuses on one central issue in learning about NOS: understanding the nature and status of scientific theories. A key challenge in teaching about NOS is to persuade students that scientific knowledge is generally robust and reliable, yet also in principle always open to challenge and modification. Theories play a central role, as they are a form of conjectural knowledge that over time may be abandoned, replaced, modified, yet sometimes become well established as current best scientific understanding. The present paper reports on findings from interviews with 13–14 year olds in England where target knowledge presents theories as ‘consistent, comprehensive, coherent and extensively evidenced explanations of aspects of the natural world’. Student thinking reflected a two-tier typology of scientific knowledge in which largely unsupported imaginative ideas (‘theories’) became transformed into fairly definitive knowledge (such as laws) through relatively straightforward testing. These results are considered in relation to research into intellectual development which indicates that effective teaching in this area requires careful scaffolding of student learning, but has potential to contribute to supporting intellectual development across the curriculum.     

试析虚拟经济的基础——虚拟资本

虚拟资本是独立于实体资本之外以有价证券形式存在的能给持有者带来一定收益的资本。在当代,虚拟资本的内涵和外延都扩大了,它具有不同于其他资本的独特运动方式。虚拟资本的价值增值对实体资本、国民财富、国民收入分配产生了极大影响。虚拟资本在交易市场上的价格决定方式也不同于其他商品或资本。     

自然体育视域下健康生活方式的研究

为了解自然体育是如何成为人们的一种健康生活方式。该文采用文献资料法和逻辑推理法对不健康的生活方式进行了分析,得出健康的隐患包括环境恶化、营养过剩、运动量不合理3个方面,表明生活方式与健康的关系十分密切。分析了“自然体育”对人们健康生活方式的作用和价值,认为自然体育运动正在成为人们的一种健康的生活方式。     

模糊系统理论在预测中的一个应用

按照模糊自适应系统的理论，探讨了一种预测方法。这个方法比神经网络预测方法更为简单且收敛更快。