James Clerk Maxwell and his equations     

B?N?DwivediEmail author 《Resonance》2003,8(5):4-16

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完善企业境外投资的财政金融政策支持体系     

亢玲莉 《山西师大学报(社会科学版)》2005,32(5):34-36

随着经济全球化的发展,企业跨国投资的步伐愈来愈快。在跨国投资过程中,企业也会面临各种困难与风险。发达国家在企业跨国投资过程中,运用税收、信贷、保险等金融手段对境外投资给予促进和必要的制约,从而分散企业的经营风险。我国企业在跨国投资过程中,也应该借鉴国际经验,建立和完善企业境外投资的税收制度,加大企业信贷优惠政策扶持力度,完善企业境外投资保险制度、企业境外投资准备金制度、中小企业境外投资的融资政策等,以分散企业的经营风险。  相似文献   

Field-study science classrooms as positive and enjoyable learning environments     

Julien?M.?Zaragoza  Barry?J.?FraserEmail author 《Learning Environments Research》2017,20(1):1-20

We investigated differences between field-study classrooms and traditional science classrooms in terms of the learning environment and students’ attitudes to science, as well as the differential effectiveness of field-study classrooms for students differing in sex and English proficiency. A modified version of selected scales from the What Is Happening In this Class? questionnaire was used to assess the learning environment, whereas students’ attitudes were assessed with a shortened version of a scale from the Test of Science Related Attitudes. A sample of 765 grade 5 students from 17 schools responded to the learning environment and attitude scales in terms of both their traditional science classrooms and classrooms at a field-study centre in Florida. Large effect sizes supported the effectiveness of the field-studies classroom in terms of both the learning environment and student attitudes. Relative to the home school science class, the field-study class was considerably more effective for students with limited English proficiency than for native English speakers.  相似文献   

Should Science be Taught in Early Childhood?     

Haim?EshachEmail author  Michael?N.?Fried 《Journal of Science Education and Technology》2005,14(3):315-336

This essay considers the question of why we should teach science to K-2. After initial consideration of two traditional reasons for studying science, six assertions supporting the idea that even small children should be exposed to science are given. These are, in order: (1) Children naturally enjoy observing and thinking about nature. (2) Exposing students to science develops positive attitudes towards science. (3) Early exposure to scientific phenomena leads to better understanding of the scientific concepts studied later in a formal way. (4) The use of scientifically informed language at an early age influences the eventual development of scientific concepts. (5) Children can understand scientific concepts and reason scientifically. (6) Science is an efficient means for developing scientific thinking. Concrete illustrations of some of the ideas discussed in this essay, particularly, how language and prior knowledge may influence the development of scientific concepts, are then provided. The essay concludes by emphasizing that there is a window of opportunity that educators should exploit by presenting science as part of the curriculum in both kindergarten and the first years of primary school.  相似文献   

ADAPT<Superscript>IT</Superscript>: Tools for training design and evaluation     

Marcel?B.?M.?de?CroockEmail author  Fred?Paas  Henrik?Schlandbusch  Jeroen?J.?G.?van?Merri?nboer 《Educational technology research and development : ETR & D》2002,50(4):47-58

This article describes a set of computerized tools that support the design and evaluation of competency-based training programs. The training of complex skills such as air traffic control and process control requires a competency-based approach that focuses on the integration and coordination of constituent skills and transfer of learning. At the heart of the training are authentic whole-task practice situations. The instructional design tools are based on van Merriënboer's 4C/ID^* methodology (1997). The article describes a training design tool (Core) that supports the analysis and design for competency-based training programs and an evaluation tool (Eval) that supports the subsequent revision of this training design.  相似文献   

2. Erwin Teufel (Hrsg.): Was h?lt die moderne Gesellschaft zusammen?
Frankfurt am Main. Suhrkamp, 1996, 340 S., Preis: 24,80 DM     

Martina L?w 《Zeitschrift für Erziehungswissenschaft》2001,4(2):286

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韩礼德系统语法语言分析的模式   总被引：3，自引：0，他引：3  

成方志 《滨州学院学报》2001,17(1):44-47

:语言可以从不同角度加以研究。该文从六个方面简单阐述了系统语法大师M .A .K .Halliday语言分析的模式 ,主要内容包括 :语言的层次 ,链轴和选择轴 ,语法结构 ,语法单位 ,语法的级阶和语法系统  相似文献   

An adaptive strategy for controlling chaotic system     

曹一家  张红先 《浙江大学学报(A卷英文版)》2003,4(3):258-263

This paper presents an adaptive strategy for controlling chaotic systems. By employing the phase space reconstruction technique in nonlinear dynamical systems theory, the proposed strategy transforms the nonlinear system into canonical form, and employs a nonlinear observer to estimate the uncertainties and disturbances of the nonlinear system, and then establishes a state-error-like feedback law. The developed control scheme allows chaos control in spite of modeling errors and parametric variations. The effectiveness of the proposed approach has been demonstrated through its applications to two well-known chaotic systems: Duffing oscillator and Rössler chaos.  相似文献   

民族地区中小学图书馆室建设探索     

康克军 《阿坝师范高等专科学校学报》2002,(1):124-126

人们对中小学校图书馆室等基础功能设施建设重视不够。文章从图书馆室的装备、管理和效益三个方面,结合民族地区的特点和教育现状,提出了民族地区中学小校图书馆室建设和管理模式,供当地教育行政部门和学校参考。  相似文献   

Introduction: Education and Poverty Reduction     

Cristovam Buarque  Vida A. Mohor?i? ?polar  Tiedao Zhang 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2006,5(1):219-229

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