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   

提高体育运动学校学生修养的途径探讨--关于文学鉴赏的一般认识规律及方法     

沈秀芳 《南京体育学院学报(社会科学版)》2002,16(4):127-128

在提高体校学生个人修养方面，传授其学鉴赏诀窍无疑是较好的途径之一。体育之美如何与学之美融合起来，才能使体校学生由此而及彼。学鉴赏是记在阅读过程中对作品所产生的由内而外的感受和体验、欣赏与鉴别。鉴赏学作品时应有读的积极思维和理性认识，从而感受到作品形象的意义；体校语教学要注意提高体育专业学生学鉴赏的能力。  相似文献   

对体育教学中女生学习兴趣的研究   总被引：1，自引：1，他引：0  

谢静月  徐元玉  杨秀芳 《山西师大体育学院学报》2002,17(3):51-52

通过问卷调查、献资料查阅，结合观察和教学实践等方法对女生体育兴趣及动机进行研究，分析了影响女生体育教学的因素，发出了一些弊端，提出了改进女生体育教学的建议，为进一步完善体育教学提供参考意见。  相似文献   

碰撞与交融——美国主流日报和中国主流英语日报言论版的实证比较研究     

李秀芳 《新闻大学》2006,(2):76-82

中国英语传媒在塑造和维护良好的国家形象,营造有利于我国的国际舆论等方面发挥重要作用,新闻评论是一种对最新发生的新闻事件或重大问题提出一定看法和意见的文章[1]。中国胡乔木指出评论是“报纸的灵魂”,美国普利策称评论为“报纸的心脏”。鉴于提升中国英语传媒传播效果的迫切性和评论在中西方新闻传播中的重要地位,本文对美国主流日报和中国主流英语日报的言论版进行定量和定性的比较,希望对办好中国对外英语报纸有所裨益。  相似文献   

Understanding the Information Needs of Academic Scholars in Agricultural and Biological Sciences   总被引：4，自引：0，他引：4  

Pali U. Kuruppu  Anne Marie Gruber   《The Journal of Academic Librarianship》2006,32(6):609-623

This study investigates the information needs of faculty and graduate students in agricultural and biological sciences. Qualitative research methods, interviews and focus groups, were used to examine what types of information these scholars need for their research, teaching and learning, how they seek that information, and perceptions. The implications for library service are discussed.  相似文献   

医院内肺部真菌感染的临床分析     

林荣  赵秀芳 《河北北方学院学报(医学版)》2005,22(2):59-61

目的:引起临床医师对医院内肺部真菌感染(PFIH)的高度重视.方法:对56例医院内肺部真菌感染的病例进行临床分析.结果:45例患者均患有慢性肺部疾病,其中以慢性阻塞性肺病、慢性肺原性心脏病导致的PFIH最多占68%.住院日的延长,广谱、多种抗生素的长时间应用,糖皮质激素和免疫抑制剂的使用,是PFIH常见的医源性因素.痰培养念珠菌属占91%,特别是白色念珠菌即占82%.结论:应尽可能减少或避免导致PFI  相似文献   

宽度不等的夫琅和费双缝衍射图样     

魏秀芳 《伊犁师范学院学报》2004,(3):34-35,43

分析宽度不等的夫琅和费双缝衍射，得出其衍射光强分布图及衍射图样的特点。  相似文献   

On the critical period of Chinese pupils’ moral development: Retrospect and prospect     

Jing-jin Shao  Xiu-fang Xing  Xin-ran Zeng 《Frontiers of Education in China》2006,1(3):462-473

Research into the critical period of Chinese pupils’ moral development is one of the most important parts in the field of moral psychological study. This paper reviews 20-year literature available on the critical period of pupils’ moral development and its instruments to measure it. It also gives details of its inadequate research into pupils’ moral development and then concludes with some conjectures about the future of this field of study. __________ Translated from Psychological Science, 2005 (2) The authors are grateful to Prof. Zhang Dajun of Research Institute of Education Science, Southwest University of China to this study.  相似文献   

外加因子的生物效应及其在生物技术中的应用     

李晓静  施秀芳  冯霞  阳葵 《安阳师范学院学报》2001,(2):10-12

本文讨论了生长调节剂、分散剂和超声波的生物效应以及它们在生物技术中的应用现状和前景．  相似文献   

In vitro study on ribozyme against hepatitis C virus     

Chen Zhi  Liu Yong  Liu Ke-zhou  R. H. Dennin  Dou Jun  U Reinhard 《浙江大学学报(A卷英文版)》2001,2(1):100-103

Objective: To determine the effective nucleotide sites of ribozymes against HCV, and obtain a highly effective, nontoxic and inexpensive antisense ribozyme specific for HCV. Methods: Two effective ribozymes, targeted to HCV 5’NC region and C region, were designed and synthesized. Eukaryotic expression vectors, pSV2-gpt. CD-SR (, containing either HCRZNC or HCRZC were constructued and transfected into MT-2 cells, which had been infected by HCV. Quantitative PCR and hydridization were used to determine the effect of inhibition of HCV by ribozymes. Results: HCRZNC and HCRZC suppressed the replication of HCV by 54.7% and 62.1%, respectively. Furthermore, when both ribozymes were cotransfected into cells, they suppressed replication by 78.8%. Conclusion: Two specific antisense ribozymes have strong inhibitory effects on the replication of HCV in cultured cells, and have better effect when used together.  相似文献