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秦岭自然保护区群成本效益研究(Ⅰ)——成本效益比较 总被引:1,自引:1,他引:1
本研究在秦岭自然保护区群成本效益计量研究成果的基础上,首先对秦岭自然保护区群的保护成本及效益进行了比较分析,同时修正了研究中的误差;采用利益相关者理论中的米切尔分类方法,找出了秦岭自然保护区群的成本承担者及效益分享者,并对其进行比较分析;最后文章对成本一效益进行进一步分析及发展趋势预测。研究结果表明:经过调整后的综合效益约为234亿元,其中生态效益约为188亿元;经济效益约为34亿元;社会效益约为12亿元;综合效益成本比为7.88。在成本效益比较分析表明保护区周边社区承担了过多的成本且产生了负效益,这也是引起社区与保护区矛盾最根本的原因。研究认为,随着国家社会经济的发展,保护区群的综合效益会呈上升趋势,国家有关部门应建立健全生态效益补偿机制。 相似文献
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情报学不要再办本科教育了 总被引:5,自引:0,他引:5
国家教委至今已经多次公布"专业目录",其中有关"情报学"一类的教育,无论是本科生还是研究生教育,每一次都是修改的重点对象.从名称到隶属关系忽东忽西,几上几下,呈现出高频振荡之势.这至少说明人们对其认识、理解和看法的歧义而需要不断的变换. 相似文献
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本研究在秦岭自然保护区群成本效益计量研究成果的基础上,对成本效益进行进一步分析及预测。运用统计软件SPSS17.0结合十余种拟合曲线,根据秦岭自然保护区群中7个国家级自然保护区的成本效益截面数据,尝试性地进行了综合效益及三大成本之间关系曲线拟合。研究结果表明:根据模型拟合优度R2大小及显著水平Sig.判断,最终得出了成本效益之间的关系式。即三个拟合函数分别是:①综合效益(Qt)与直接保护成本(Xa)的函数曲线方程为:Qt=-68.244+870.688Xa-2493.849Xa2+2304.879Xa3;②综合效益(Qt)与间接保护成本(Xb)的函数曲线方程为:Qt=17.844e1.986Xb;③综合效益(Qt)与机会保护成本(Xc)的函数曲线方程为:Qt=-78.157+104.775Xc-32.953Xc2+3.296Xc3。本研究结果可以为国家有关部门进行保护区投资做有益的帮助,同时为陕西省自然保护区保护政策的完善做理论支撑。 相似文献
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论未来的图书馆及其信息服务 总被引:75,自引:0,他引:75
论未来的图书馆及其信息服务王崇德ABSTRACTTheauthordiscussesthebasicpaternsoflibrary,in-formationtransmissionandinformationservicesinlibraryint... 相似文献
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The Influence of CASE on Scientific Creativity 总被引:1,自引:0,他引:1
This paper describes a study of the influence of the Cognitive Acceleration through Science Education (CASE) programme on the scientific creativity of secondary school students. 1087 pupils from six suburban mixed comprehensive schools in England took part in the investigation. Three of the schools had participated in the CASE programme and three had not. Samples of students in years 7–11 from each school were given the Scientific Creativity Test for Secondary School Students, an instrument designed to tap various aspects of scientific creativity. The results indicated that the CASE programme did promote the overall development of scientific creativity of secondary school students, although the effects on different aspects of scientific creativity varied. As expected from previous work on delayed effects of CASE on academic achievement, the results indicated that the effects on creativity were not necessarily immediate, but tended to be long-lasting. Possible interpretations of these results are discussed. 相似文献
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Teacher performance evaluation plays a key role in educational personnel reform, so it has been an important yet difficult
issue in educational reform. Previous evaluations on teachers failed to make strict distinction among the three dominant types
of evaluation, namely, capability, achievement, and effectiveness. Moreover, teacher performance evaluation was usually restricted
to task performance, neglecting contextual performance. Most researches done in teachers’ evaluation were only about college
teachers. This paper suggests that teacher performance evaluation should find its theoretical foundation in teacher performance
constructs. After making literature review, critical case study, critical interview, and qualitative research, the authors
propose a new construct of teacher performance and make necessary analysis for the construct of reliability and validity in
empirical approaches.
Translated from Teacher Education Research, 2005, 1 相似文献
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健康是人首要和珍贵的财富,实现健康及其可持续发展的重要途径是提高健康素养。健康素养是保障人全面发展的必备素养,是反映经济社会发展水平的综合性指标,是体现教育质量和教育公平的重要素养。健康素养具有综合性、层次性、互动性、终身性和目的性等特点。基于健康素养的不同界定,国际上开发了大量的以成年人为对象的健康素养评价工具。国际上的健康素养研究为我国学生健康生活素养研究的开展提供了借鉴:应准确理解和把握学生健康生活素养的内涵,开发完善我国学生健康生活素养的评价体系,高度重视沟通性和批判性健康素养的培养。 相似文献
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研究分词在统计机器翻译中的影响因素,分析不同分词对机器翻译词对齐模型的影响,提出基于粒度约束和子串标注的分词优化方法,并通过优化分词提高机器翻译的效果。 相似文献