ON THE REE ACROSS THE PERMIANTRIASSIC BOUNDARY IN SOUTH CHINA

This paper discusses the INAA results of REE in clays atand near some Permian/Triassic boundaries of South China.It showsthat the REE patterns of boundary clays differ from those of non-boundary clays.One difference is that the boundary clays are moreenriched in LREE,with steeper slope of REE and a smaller Eu nega-tive anomaly than the non-boundary clays.Another difference is that theboundary clays show a small Ce negative anomaly,but no Ce anomalyoccurs in the non-boundary clays.From these REE patterns and some other experimental facts,it isproposed that the P/T boundary clay may be a mixed product consistingof the acidic-intermediate ash and the upper crust substance representingsputtering component,and the calculated fraction of the former andlatter is 7/3.     

构建我国科学规范的公共财政支出体系的思考

本文从财政支出规模和结构两方面进行实证分析,揭示财政支出的"越位"与"缺位"现象依然大量存在,在此基础上提出,在公共财政的框架下,加大改革力度,增加财源,优化财政支出结构,重新构建适应公共财政要求的科学规范的支出体系。     

智力资本度量的记分卡方法评述

知识经济时代,企业的价值关键在于其拥有的智力资本,对智力资本实施有效的管理对于企业建立持久的竞争优势至关重要。但智力资本的管理离不开对智力资本的度量,只有明确企业现有智力资本存量的基础上,才可能真正地对智力资本实施有效的管理。本文简单介绍了一类智力资本度量方法——记分卡方法中各个模型的基本思路和使用方法。     

试论专家型隐性知识地图的构建

从企业知识管理的两个案例着手,分析组织知识地图构建的关键因素;并从知识地图构建原则、隐性知识的获取和挖掘、标引及关联等方面探讨了专家型隐性知识地图的构建.隐性知识地图是企业知识地图构建的核心,需要隐性知识挖掘技术、标引技术和关联技术的进一步发展和完善,也需要企业内部知识共享文化的配合.图3.表1.参考文献15.     

为了情感的教育——美国音乐教育的审美精神內核

20世纪下半叶,审美教育成为美国音乐教育的主流,它的核心是为了情感而教育,具体表现在:音乐是人类情感形式的符号表现,情感成了音乐教育的基础;音乐教育的主要任务是激发与培育学生的情感;培育情感的途径即通过审美认知,这种认知以音乐的审美品质为基础;情感的最高形式是审美体验,学生通过获得审美体验从而洞察生命的深层意义,最终提高并丰富了学生的生命质量.审美音乐教育的情感核心体现了20世纪上半叶"音乐为了每个孩子"到下半叶"音乐为了人类的情感"的转变,为20世纪下半叶的美国音乐教育形式的形成奠定了坚实的理论基础.     

积极应对SA8000认证提高我国企业国际市场竞争力

SA8000认证制度,是经济全球化的本性和发展需要,是企业通向国际市场的通行证.目前,我国企业在实施SA8000认证制度的过程中还存在许多问题和困难,企业要更新观念,采取积极的应对措施,参与SA8000认证,努力提高我国企业在国际市场上的竞争力.     

基于经济快速增长下的上海高等职业技术教育发展的思考

上海经济发展要求高等职业技术教育提供的人才数量增大、素质提高,人才结构进行调整.高等职业技术教育要在办学定位、管理体制、专业设置、课程设置、人才培养模式等方面进行深入的探讨,为上海经济发展提供所需人才.     

多维视角下的学科、学术文化及高等教育——读《学术部落与学科领地》

托尼·比彻(Tony Becher)在《学术部落与学科领地》1989年第一版序言中开篇写道,其研究源于学术史上的两位重要人物及其论著。1959年,斯诺(C.P.Snow)《两种文化和科学革命》一书的问世"激怒了"哲学出身的比彻,他认为     

Effects of osmotic stress on antioxidant enzymes activities in leaf discs of P<Subscript>SAG12</Subscript>-<Emphasis Type="Italic">IPT</Emphasis> modified gerbera

Leaf senescence is often caused by water deficit and the chimeric gene PSA612-1PT is an auto-regulated gene delaying leaf senescence. Using in vitro leaf discs culture system, the changes of contents of chlorophylls, carotenoids, soluble protein and thiobarbituric acid reactive substance （TBARS） and antioxidant enzymes activities were investigated during leaf senescence of PSA612-1PT modified gerbera induced by osmotic stress compared with the control plant （wild type）. Leaf discs were incubated in 20%, 40% （w/v） polyethylene glycol （PEG） 6 000 nutrient solution for 20 h under continuous light [ 130 μmol/（m^2·s）]. The results showed that the contents of chlorophylls, carotenoids and soluble protein were decreased by osmotic stress with the decrease being more pronounced at 40% PEG, but that, at the same PEG concentration the decrease in the transgenic plants was significantly lower than that in the control plant. The activities of superoxide dismutase （SOD）, catalases （CAT）, ascorbate peroxidase （APX）, guaiacol peroxidase （GPX） and dehydroascorbate reductase （DHAR） were stimulated by PEG treatment. However, the increases were higher in PSA612-IPT transgenic plants than in the control plants, particularly at 40% PEG treatment. Lipid peroxidation （TBARS content） was increased by PEG treatment with the increase being much lower in transgenic plant than in the control plant. It could be concluded that the increases in the activities ofantioxidant enzymes including SOD, CAT, APX, GPX and DHAR were responsible for the delay of leaf senescence induced by osmotic stress.     

智利教育券政策述评

1980年,智利开始实施由公共经费资助的政府教育券政策.该政策以弗里德曼的自由市场教育券模式为理论基础,覆盖全国所有的公立和部分私立中小学.教育券政策的实施尽管扩大了学生及其家长选择学校的机会,但研究表明社会经济背景较好的学生才是该政策的更大受益者.此外,在改进学校效益、提高教育质量、促进教育公平等方面,智利的教育券政策也并没有取得预期的效应.因此,有必要重新认识教育券政策的目的与功能,以寻求新的突破.