Hedonic price analysis of urban housing：An empirical research on Hangzhou, China

INTRODUCTION Urban housing is a “unique product” with three peculiarities (Harsman and Quigley, 1991): (1) Com-plexity of housing. As a kind of complicated goods, housing can meet a great variety of a family’s demands and be closely related to such activities as residents’ life, work, amusement, etc.; (2) Fixity of housing. Housing directly relates to urban land in special location. The movement of housing is basi-cally impossible under the present technological conditions, with res…     

论高校英语专业教学中学术性及职业性之原则

章提出英语专业教学在“厚基础”的同时，为什么以及如何加强英语课程的学术性及其职业应用性，做到三管齐下，以培养集知识性、思想性、实践性于一身的符合时代需求的实干人才。     

阴离子表面活性剂在碳铵添加剂中的应用研究

综述了反应型阴离子碳铵添加剂的生产应用现状,并从分子结构和产品组成上分析了使用效果差异;同时,指出了开发新产品的研究方向。     

开放信息环境下的网络资源拓展方案

本文介绍了虚拟专用网络VPN（Virtual Private Network）,及其在校园网特别是图书馆网络拓展方面的应用。VPN为扩展现有图书馆网络系统、增加现有系统的管理能力提供了一个便捷的途径,是高校图书馆网络系统的专用增值方案的首选。     

二语习得中母语良性作用之探析

二语习得中母语的影响不应片面地被界定为“干扰作用(或负迁移)“.作为外语教师在注意到母语负面作用的同时更应该发掘和充分发挥其良性功用.本文力图从理论和实践中探寻母语对于促进二语习得所具有的良性功用以引起教学中的应有重视.     

利用网络解决计算机专业英语教学上的几个问题

合理地利用丰富的网络资源可以解决计算机专业英语教学上的一些的问题,改善教学效果。结合计算机专业英语课程的性质,从若干个方面提出了利用网络来解决这些问题的策略。     

我国集体土地征收制度的法律思考

要解决现行集体土地征收制度存在的问题,相关立法应明确界定“公共利益”,限制政府征地权滥用;明确土地承包经营权的物权属性,完善集体土地产权制度;加强土地规划管理,严格土地农转非审批。     

英语形容词的理解与翻译

英语中的形容词在句子中起着重要的修饰作用,要透彻深入地理解词义,然后用恰到好处的汉语去翻译,才能对句子的译文起到画龙点睛的作用.     

Toxicity comparison of different active fractions extracted from radix <Emphasis Type="Italic">Sophorae tonkinensis</Emphasis> in zebrafish

Radix Sophorae tonkinensis (RST) is a widely used herb in Traditional Chinese Medicine (TCM) for treating infectious and inflammatory diseases. However, the toxicity data for RST are limited. The aim of this work is to assess and compare the toxicity of the whole RST extract and its five active fractions using the zebrafish model. Five active fractions of RST were prepared using five different types of solvents, which included dealkalized water, ethanol, n-butyl ethanol, dichloromethane, and diethyl ether. The chemical profiles of the active fractions were determined by high-performance liquid chromatography (HPLC), and the toxicity observed in the zebrafish model was confirmed using mouse models. In the zebrafish model, cardiovascular toxicity was observed for the fraction extracted using diethyl ether, and hepatotoxicity was observed for the whole RST extract and the fractions extracted using water and ethanol, whereas both cardiovascular and hepatic toxicities were observed for the fractions extracted using n-butyl ethanol and dichloromethane. The hepatotoxicity of the fractions extracted using n-butyl ethanol and dichloromethane was also observed in mice. Our findings provide the toxicity data for RST and its five active fractions through modeling in a zebrafish, and indicate that the different fractions may each have a different toxicity, which is helpful for the optimal use of RST in clinical practice.     

现代教育技术与应用型本科人才的培养

阐述了现代教育技术对于应用型人才培养的重要性,提出了在目前形势下应用型本科院校加快现代教育技术发展所必须采取的具体措拖.