电子商务安全探讨和网上交易规范设计

首先探讨了电子商务活动中所面临的安全威胁和防范措施,然后在介绍网上交易基本概念的基础上,进一步阐述了网上交易的基本原则和网上交易服务提供者的规范行为。     

浅析体育专业民族学生汉语交际能力的培养

文章通过体育教育专业少数民族学生汉语交际能力的观察,对怎样在体育教学中更好地利用专业汉语课程提高少数民族学生交际能力,对体育专业汉语课程教材、课堂组织、教学方法,交际活动等四个方面进行了分析,对教学中的一些常见的做法作出了初步的探讨。     

浅谈提高企业员工素质

该文从提高员工的素质是面对新世纪的客观要求、提高员工素质与煤矿企业的、工作机制、社会环境及经济效益的关系、提高员工的素质,要加强对职工的培训、加强对人才工作的管理,防止人才流失四个方面阐述了如何提高企业员工素质,具有一定借鉴意义。     

论统计方法在财务会计中的应用

阐述了财务会计与统计的内在联系及协调统一,分析了统计方法在财务会计领域的运用。     

信息素养在大学生研究性学习中的作用

分析了研究性学习的特点,分析了信息素养在研究性学习中的作用,探讨了大学生信息素养的形成。     

论执行款管理中存在的问题及对策——对“程伟案件”的反思

“程伟案件”将当前法院在执行款的执行制度上存在的问题暴露无遗，引发了社会各界对法院执行款管理问题的再度关注．本文从不同角度就人民法院执行款管理中存在的问题进行剖析并提出了相应的对策性建议．     

高校网络教育学习支持服务系统的研究与改进

通过对四川大学网络教育学院学习支持服务体系现状的调研,提出了改进学习支持服务体系建设的相关建议。     

Philosophy of chemistry and the image of science

The philosophical analysis of chemistry has advanced at such a pace during the last dozen years that the existence of philosophy of chemistry as an autonomous discipline cannot be doubted any more. The present paper will attempt to analyse the experience of philosophy of chemistry at the, so to say, meta-level. Philosophers of chemistry have especially stressed that all sciences need not be similar to physics. They have tried to argue for chemistry as its own type of science and for a pluralistic understanding of science in general. However, when stressing the specific character of chemistry, philosophers do not always analyse the question ‘What is science?’ theoretically. It is obvious that a ‘monistic’ understanding of science should not be based simply on physics as the epitome of science, regarding it as a historical accident that physics has obtained this status. The author’s point is that the philosophical and methodological image of science should not be chosen arbitrarily; instead, it should be theoretically elaborated as an idealization (theoretical model) substantiated on the historical practice of science. It is argued that although physics has, in a sense, justifiably obtained the status of a paradigm of science, chemistry, which is not simply a physical science, but a discipline with a dual character, is also relevant for elaborating a theoretical model of science. The theoretical model of science is a good tool for examining various issues in philosophy of chemistry as well as in philosophy of science or science studies generally.     

混凝土早龄期热膨胀系数试验研究

通过设计开发新的早龄期混凝土热膨胀系数测量装置,测量了不同配合比的混凝土从初凝后开始的热膨胀系数,总结了在早龄期混凝土热膨胀系数随龄期的发展规律,并给出了其拟合公式。     

Time‐simultaneous prediction band for a time series

I propose principles and methods for the construction of a time‐simultaneous prediction band for a univariate time series. The methods are entirely based on a learning sample of time trajectories, and make no parametric assumption about its distribution. Hence, the methods are general and widely applicable. The expected coverage probability of a band can be estimated by a bootstrap procedure. The estimate is likely to be less than the nominal level. Expected lack of coverage can be compensated for by increasing the coverage in the learning sample. Applications to simulated and empirical data illustrate the methods. Copyright © 2007 John Wiley & Sons, Ltd.