被压抑的本能借助幻想得以升华--浅释弗洛伊德的文艺创作观

弗洛伊德的精神分析学说对于文艺创作的批评散见于多篇论文中,本文试图加以整理,认为弗洛伊德把作品看作是作家被压抑的本能(尤其是俄狄浦斯情结)借助幻想得以升华的结果。     

Small-group problem-based learning as a complex adaptive system

Small-group problem-based learning (PBL) is widely embraced as a method of study in health professions schools and at many different levels of education. Complexity science provides a different lens with which to view and understand the application of this method. It presents new concepts and vocabulary that may be unfamiliar to practitioners of small-group PBL and other educational methods. This article looks at small-group PBL from the perspective of complex adaptive systems (CAS). It begins with a brief review of the current understanding and practice of PBL. Next some of the characteristics of CAS are reviewed using examples from small-group PBL to illustrate how these characteristics are expressed in that context. The principles and the educational theory in which small-group PBL are embedded are related to CAS. Implications for health professions education are discussed.     

复常系数线性微分方程的解法

文[1]仅给出了y″+(a+bi)y′+(c+di)y=0的通解公式,本文先提出一类高阶复系数齐次方程的通解公式。进而利用待定系数法,得到了二阶复常系数线性非齐次方程特解的简捷求法,即直接利用公式写出相应方程的特解。     

CPLD在ADS7812与CPU之间的接口应用

介绍了应用CPLD器件设计ADS7812与CPU之间的接口——“串并”转换电路。ADS7812是BB公司生产的高性能、低功耗12位串行A/D转换器。ispLSI1016是Lattice公司生产的低密度ispPLD器件。     

苏轼中秋词的还乡情结

通过对苏轼的四首中秋词的解读 ,发现苏轼被迫走出“美好”的现实生活后 ,经过炼狱般的苦难 ,怀着执着的挥散不去的浓浓的乡愁 ,最终找到了自己和自己的精神家园     

两类复矩阵的复相合标准形

给出了亚正定阵及亚半正定阵的复相合标准形，及两个亚正定阵复相合的一个充分条件。     

多元复合函数求导的变式问题

在一元复合函数求导法和多元函数求偏导的基础上,通过恰当合理的知识变式、题目变式、思维变式、方法变式,有意识的启发、引导学生沿着预期的目标进行积极地思维,概括出各种问题中共同的、本质的求导方法及规律,使得很多复杂的多元复合函数求导问题得以简化。     

类比建构在复变函数教学中的应用

复变函数教学中运用类比建构的方法,有助于学生系统掌握复变函数的基本理论与方法;加强教材中所讲授内容纵横联系对比,有助于启迪学生思维,发现新结论;引导学生自主探索,在总结深化中完善知识结构,有助于培养学生的创新能力.     

复Gamma函数的定义形式及其等价证明的探讨

Gamma函数在复分析中占据了一定的地位。由于复数的复杂性,复分析中的Gamma函数产生了许多与数学分析中的Gamma函数不同的性质。Gamma函数的定义形式不唯一,它在复分析中主要有四种定义形式。试图系统地给出这四种定义形式的等价证明（其中,④■①为本人自己尝试给出的证明）。     

Building the next generation of digital government infrastructures

Digital government infrastructures provide generic functionalities that are used by large numbers of users. Typically, they have no central authority, are governed by networks and contain both emerging and purposefully designed parts. Their use varies over time, and a large number of individuals use them for different purposes. The basic digital government infrastructure has evolved over time and the development towards the next generation of digital government infrastructure (NGI) is under development. In this introduction, we discuss aspects of infrastructure development and this special issue contains papers contributing to the development of the NGI in various fields including customs, crisis management, legislation and regulation, providing a number of possible functions and services that may become part of the NGI. We argue that policy-makers should view the NGI from a complex-adaptive systems (CAS) view and that the next generation of infrastructures will provide not only technological services, including connectivity and security, but also shared information and knowledge in various fields, thus making it easier to participate, translate legislation and manage collaboration between public and private parties and in this way advancing digital government.