敦煌版画的背景意义   总被引：1，自引：0，他引：1  

马德 《家教指南》2005,(2):1-6

敦煌出土的佛教版画表现了佛教信仰的一种新方式,它与敦煌石窟艺术一脉相承,是敦煌艺术的组成部分之一,是科学技术与佛教艺术相结合的产物,在中国美术史和中国印刷科技史上都有十分重要的价值意义.  相似文献   

Context-sensitive regularities in English vowel spelling     

Mark Aronoff  Eric Koch 《Reading and writing》1996,8(3):251-265

The predictive value of rime spellings in English was compared directly to other types of regularities beyond the level of the single letter. A computer-assisted analysis of a list of twenty-four thousand written words, each paired with its corresponding pronunciation, reveals that only a small number of rime spellings are highly regular in their pronunciations. The conventional division of vowel letter pronunciations into short and long in closed and open written syllables is the most reliable key to English pronunciation. Our findings support the notion that English spelling is based at least in part on syllable structure. In addition, prefixes and suffixes provide very reliable clues to pronunciation, which suggests that their regularity should be exploited in the teaching of reading.  相似文献   

Training complete engineers: Global enterprise and engineering education     

Erik De Graaff  Wim Ravesteijn 《European Journal of Engineering Education》2001,26(4):419-427

For the past few years a discussion has been going on about the specific skills and knowledge a complete engineer should possess. Apart form this discussion, a separate debate has focused on the content of an engineer's education. This article is a combination of two joint papers (De Graaff and Ravesteijn 2000, Ravesteijn and De Graaff 2000) bearing on these respective subjects, presented by the authors at the SEFI 2000 conference in Paris. The demands from industry that engineers of the future will have to meet are summarized and related to characteristics of modern training methods. It is argued that a new view on the content of the engineer's education implies, at least to a certain extent, a new set of educational tools.  相似文献   

研发驱动内生增长模型中的企业研发行为与政府政策     

曾德明  陈立勇 《研究与发展管理》2002,14(3):37-41,52

在研发驱动的内生经济增长理论的框架内,对企业研发竞争行为和政府研发政策的最新研究进展进行了深入探讨,并结合我国产业现状指出政府为产业领先者提供补贴并对新的产业领先企业的利润征税能使社会福利达到最优。  相似文献   

Can creative destruction be destroyed? Military IR&D and destruction along the value-added chain     

Allen Kaufman  Mark Brumer 《Research Policy》2003,32(9):1537-1554

We elaborate a supply chain innovation matrix that can be applied to both commercial and military supply chains. By shifting the analysis from a focal firm to industry structure, we argue that the market structure of the entire supply chain functions as a major moderating variable in determining both the timing and adoption of innovations, both for commercial and military markets. We extend work on supply chain resource dependency by drawing a distinction between market-structure-induced resource dependency and supplier over-reliance on a customer in a competitive market. This has policy implications for the organization of military industrial research and development (IR&D). Joint service research and development (Jointness) will certainly bring about innovation, but it will be incremental, reinforcing established military hierarchies. Policy makers may need to add this probable consequence when comparing Jointness and inter-service rivalry. The cost savings inherent in Jointness may unwittingly sustain a military force unready for fighting the next war.  相似文献   

关于风险投资者和投资管理机构的关系模型   总被引：2，自引：0，他引：2  

陈德棉  李刚  张玉臣 《预测》2001,20(6):52-53

由于信息不对称，风险投资管理机构存在很大的道德风险。本文通过风险投资者和投资管理机构之间的关系研究认为，使投资管理者的回报和基金收益挂钩和公布投资管理者的业绩信息，可以对投资管理者进行有效的激励和约束。  相似文献   

Journal publishing systems: outsource or in‐house?     

Mark WARE 《Learned Publishing》2007,20(3):177-181

This article describes a framework to help publishers decide whether they should develop and host their own proprietary online journal system, or whether they should outsource this activity. We also suggest a practical high‐level checklist for comparing journal systems.  相似文献   

Providing Bottom-Up Support to Middle School Science Teachers’ Reform Efforts in Using Inquiry-Based Kits     

Mark T. Jones  Charles J. Eick 《Journal of Science Teacher Education》2007,18(6):913-934

Middle grades science teachers need professional support in practice as they implement new inquiry-based science. Professional development schools can provide this bottom-up support through connecting preservice and inservice teacher education programs in classroom practice. In this study, coteaching arrangements with secondary science education majors provided additional teachers in the classroom to support a materials-rich curriculum and the needed associated pedagogies. Science education majors provided needed assistance in troubleshooting difficulties with the new curriculum. They also provided needed content knowledge to support inquiry, along with creating moments and space for teachers to reflect on inquiry practice. Ongoing assistance by preservice teachers allowed inservice teachers to progress from logistical concerns in implementing kit curriculum to concerns regarding student learning and the supporting professional development.

Charles J. EickEmail:

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The dyadic nature of bullying and victimization: testing a dual-perspective theory   总被引：2，自引：1，他引：1  

Veenstra R  Lindenberg S  Zijlstra BJ  De Winter AF  Verhulst FC  Ormel J 《Child development》2007,78(6):1843-1854

For this study, information on Who Bullies Who was collected from 54 school classes with 918 children (M age = 11) and 13,606 dyadic relations. Bullying and victimization were viewed separately from the point of view of the bully and the victim. The two perspectives were highly complementary. The probability of a bully-victim relationship was higher if the bully was more dominant than the victim, and if the victim was more vulnerable than the bully and more rejected by the class. In a bully-victim dyad, boys were more often the bullies. There was no finding of sex effect for victimization. Liking reduced and disliking increased the probability of a bully-victim relationship.  相似文献   

Scaffolding learning of language structures with visual-syntactic text formatting     

Youngmin Park  Ying Xu  Penelope Collins  George Farkas  Mark Warschauer 《British journal of educational technology : journal of the Council for Educational Technology》2019,50(4):1896-1912

The current study examines the effects of digital scaffolding on the English literacy of fourth- and sixth-grade students. A total of 1085 native English-speaking and language minority students from 25 treatment classes and 20 control classes across three school districts participated in this study for one school year. Treatment students read their English language arts and social studies text in visual-syntactic text format (VSTF) on their laptops and control students read the regular block format of the textbook either on their laptops or in print. Observations and interviews revealed that VSTF reading facilitated instruction processes and student learning in reading activities. The results of California Standard Tests (CST) before and after the treatment revealed that sixth-graders who received syntactic scaffolding outperformed control students on the composite CST score. In particular, reading in VSTF benefited the treatment students in three CST sub-categories: word analysis, written conventions and writing strategies. This study suggests that future research should investigate instructional strategies that support reading and writing development of adolescents, including at-risk students, using syntactic scaffolding.  相似文献