Medieval and renaissance glass technology in Valdelsa (Florence). Part 1: raw materials, sands and non-vitreous finds     

U. Casellato  F. Fenzi  P. Guerriero  S. Sitran  P. A. Vigato  U. Russo  M. Galgani  M. Mendera  A. Manasse 《Journal of Cultural Heritage》2003,4(4):337-353

A significant number of archaeological finds of the 13th–16th century from the Tuscan sites of Germagnana and Gambassi in Valdelsa—FI, was studied by different physico-chemical investigations (SEM–EDS, ICP, Mössbauer spectroscopy, XRD, XRF, TG-DTA) in order to contribute to clarify the production methodology and the pre-industrial glass manufacture technology. The studied samples are mainly non-vitreous finds as production waste, refractory materials, crucibles and raw materials; also vitreous finds as frits, skims, glasses (glass masses, glass working waste and finished products) have been taken into consideration. The obtained petrographic and physico-chemical data strongly suggest that both Gambassi and Germagnana glass manufactures were strictly connected with the sources of vitrifiable materials, situated in Tuscan sand quarries. In particular a comparison between sands from the neighbouring quarries and appropriate finds of the two archaeological sites evidences that the employed vitrifiable materials possibly belong to La Casina La Cava resort. The archaeological classification, based on macroscopic observation and stratigraphic position, was compared and verified with the scientific classification of the examined finds of Germagnana and Gambassi sites based on their composition, morphology and physico-chemical properties.  相似文献   

Graduate Studies in the UK: Some Impressions and Suggestions     

Edward A. Holdaway 《Higher Education Quarterly》1993,47(3):237-258

Many western countries are paying increasing attention to the organization and administration of graduate studies. Such attention has developed from primary concerns about completion times, completion percentages, programme quality, and student quality, as well as secondary concerns about supervisors, funding, coursework, inter-organizational co-operation, and policies and practices of both universities and research councils. Using information about British graduate programmes as a basis, the article presents policy issues related to research councils, funding councils, and control, followed by discussion of the themes of the nature of programmes, supervision and evaluation, completion time, quality, and innovation. The final sections address several concerns and offer some suggestions.  相似文献   

浅谈如何上好艺术体操选修课   总被引：1，自引：1，他引：0  

龙响玲 《湖北体育科技》2001,20(3):103-104

对普通高校艺术体操选修课教学从形体姿态的培养、教学成套动作的编排,音乐的选择及口令、手势的运用等,进行了分析探讨.  相似文献   

Reforming the schools: Some cautions for conservatives     

Edward A. Wynne 《Academic Questions》1990,3(1):51-59

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At-risk and expert teachers: Some thoughts about their evaluation   总被引：1，自引：0，他引：1  

David C. Berliner 《Journal of Personnel Evaluation in Education》1990,4(1):75-90

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Book review     

Paula A. Cordeiro 《Journal of Personnel Evaluation in Education》1996,10(1):93-95

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论高校体育教学中学生创新思维能力的培养   总被引：3，自引：0，他引：3  

魏彪 《湖北体育科技》2001,20(2):95-96

通过树立现代体育教学观念、优化体育课堂教学、优选体育教学法等几个方面论述了学生创新思维能力的培养。  相似文献   

浅析足球运动员意志品质及培养方法   总被引：1，自引：1，他引：0  

何勇 《湖北体育科技》2001,20(3):77-78

阐述了足球运动中意志品质的作用和地位、培养足球运动员意志品质的意义及各种方法.  相似文献   

Reading achievement of prelingually deaf students and its relationship to parental method of communication: a review of the literature     

C M Kampfe  A G Turecheck 《American annals of the deaf》1987,132(1):11-15

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中国男子足球队大赛期间阵容完整性的研究     

马樟生 《湖北体育科技》2001,20(3):12-14

采用录像观察法、数理统计法和文献资料法对中国队在亚洲杯期间主力阵容与98世界杯前3强主力阵容变化进行比较研究.结果表明:98世界杯前3强队伍主力阵容在比赛期间基本保持完整,而中国队主力阵容在最后一场比赛中极不完整.研究认为:影响中国队比赛阵容完整性的主要因素是战斗性减员和非战斗性减员.建议国家队应配备体能教练和心理学、运动医学、营养学专家;加强运动员的自我保护意识,使运动损伤最小化;合理运用技术动作减少红黄牌的发生.  相似文献