哈密顿(Hamilton)动力学讨论

本文指出现有“理论力学”教程分析力学部分关于哈密顿动力学讨论中存在的不妥性,并讨论一般完整动力学系统的哈密顿正则方程和哈密顿原理.     

利用实验方法确定矢量场中等值面与梯度的关系

该文首先对矢量场中等值面与梯度的关系进行了数学上的理论论证，然后利用实验中模拟的方法进行测定，使理论与实验相给合，最后确定二者之间的内在联系。     

英国资产阶级革命"保守性"的几点质疑

关于英国资产阶级革命“保守性”问题。以科学的态度对新贵族与资产阶级因同质而结盟，革命前以清教运动为特色的舆论准备，革命中摧毁封建土地所有制的土地革命以及最终确立资本主义政体之一的君主立宪制等方面作深层次的探讨，认为这些方面都适合英国国情，英国的资产阶级和新贵族很好地完成了革命的任务，保守性之说难以成立。     

柏克保守主义政治法律思想再解读

埃得蒙·柏克基于对法国大革命理论基础的反思,质疑理性主义,强调具体的人权、道德与人性;他主张对传统进行改革,在改革进程中于政治应审慎、于法律发展应注重历史和传统的渐进性与延续性。这些思想对于我们的政治改革与法治建设是有积极意义的。     

非惯性系中质点组的机械能守恒

本文推导出非惯性系中质点组的动能定理，并分析非惯性系中质点组的机械能守恒条件，介绍非惯性系中应用机械能守恒解决动力学问题的方法．     

Teachers,School Boards,and the Power of Money: How the Right Wins at the Local Level

Abstract

This article examines national conservative political advocacy groups' growing interest in local politics, and analyzes how they form alliances and gain political power. Following efforts to restrict collective bargaining for Wisconsin public employees, Kenosha school board members' attempts to legally protect teachers' rights provoked concern from nationally financed conservative groups. This article discusses why a small-town school board election attracted such attention, and the significance of increased attention to the local by these national groups.     

Bioconservatism,bioenhancement and backfiring

ABSTRACT

The prospect of enhancing ourselves through the use of new biotechnologies is for the most part, hypothetical. Nevertheless, the question of whether we should undertake such enhancement is worthy of discussion as it may become possible in the future. In this article, we consider one form of argument that conservative opponents of biotechnological means of enhancement (bioconservatives) deploy in opposition to the use of enhancement technologies—the backfiring objection. This is the objection that the use of such technologies is liable to go wrong and lead to outcomes that are inferior to the outcomes intended. We will argue that the objection is not nearly as significant as bioconservatives suppose it to be. Bioconservatives sometimes supplement the backfiring objection by arguing that change will be irreversible, that the new (or the unconventional) is especially liable to backfire and that humans possess severe and permanent limitations which cannot be overcome. We consider these ways of supplementing the backfiring objection and argue that each of them, when properly understood, is of limited value to the bioconservative. We also consider how traditional approaches to moral education can be supplemented by bioenhancement.     

类耗散系统的特性

介绍由保面积映像不连续、不可逆耦合构成的 类耗散系统",并以两个系统为例介绍类耗散系统的主要性质。这样的系统中会出现规则或混沌的,能把外部的迭代吸引过来的 类吸引子",但迭代一旦到达类吸引子,又会展示典型的保守性运动。这类系统中可能出现 类V形阵发 ",在适当的参数改变时,还可以展示从典型的保守系统向近似于耗散系统的连续转变。更多的特异性质还有待于继续研究     

简谐振动系统的势能

讨论了简谐振动系统势能与广义线性回复力的对应关系 ,指出了保守力学体系势能与简谐振动系统势能的区别与联系