“以人为本”里“本”的含义辨析

“以人为本”里“本”的含义有各种不同的解读，应当加以辨析。本文认为，“以人为本”里“本”的含义，首先具有本体论的含义，即人的社会物质劳动生产实践是人类社会历史的本体；其次具有价值论的含义，即在价值体系结构里以人的价值为本，人的价值与物的价值相比较居于第一位，是最高的最重要的根本性的价值；再次，具有认识论的含义，即人是认识的主体，又是当代认识论的根本对象和研究主题。     

Data skeletons: simultaneous estimation of multiple quantiles for massive streaming datasets with applications to density estimation

We consider the problem of density estimation when the data is in the form of a continuous stream with no fixed length. In this setting, implementations of the usual methods of density estimation such as kernel density estimation are problematic. We propose a method of density estimation for massive datasets that is based upon taking the derivative of a smooth curve that has been fit through a set of quantile estimates. To achieve this, a low-storage, single-pass, sequential method is proposed for simultaneous estimation of multiple quantiles for massive datasets that form the basis of this method of density estimation. For comparison, we also consider a sequential kernel density estimator. The proposed methods are shown through simulation study to perform well and to have several distinct advantages over existing methods.     

六西格玛方法与医院管理

在加入WTO后,中国的企业必将面临日益激烈的竞争,同时信息化的飞速发展,将从根本上改变经济的组织结构和消费行为。如何在这种新的经济环境中生存、成长、壮大是对每一个企业领导人的挑战。六西格玛,由于其严谨的方法和实施步骤、以面向最终用户来建立营运体系的管理思想,对于中国企业建立卓越的管理体系、获取并保持在国际市场上的竞争优势提供了一个非常有效的管理思想和实践。它可以广泛应用于制造业、服务行业等各个领域。近年来,医疗服务行业逐渐引进企业管理的六西格玛方法,重视加强医院管理,不断提高医院服务水平。     

Constrained allocation problems with single-peaked preferences: An axiomatic analysis

We introduce a new class of problems that contains two existing classes: allocation problems with single-peaked preferences and bankruptcy problems. On this class, we analyze the implications of well-known properties such as Pareto optimality, strategy-proofness, resource-monotonicity, no-envy, equal treatment of equals, and two new properties we introduce, hierarchical no-envy and independence of nonbinding constraints. Unlike earlier literature, we consider rules that allow free-disposability. We present characterizations of a rule we introduce on this domain. We relate this rule to well-known rules on the aforementioned subdomains. Based on this relation, we present a characterization of a well-known bankruptcy rule called the constrained equal awards rule. Received: 22 June 2000/Accepted: 21 March 2002 This paper is based on the first chapter of my Ph.D. thesis submitted to the University of Rochester. I wish to thank my advisor, William Thomson, for helpful comments and suggestions.     

《 转运汉巧遇洞庭红》的商业解读

凌濛初<转运汉巧遇洞庭红>通过对金老汉藏财失财和文若虚随人出海,两次巧遇发财机会陡然暴富故事的描写,反映了明代中叶以后商业发展的具体场景,反映了关于相互需求的贸易原理和资本增殖的思想.通过文若虚形象的塑造,反映了作者经商和为人相统一的思想.从故事可知,明中叶后商业发展已经有了一定的规模和规范,但也还有一些不利于商业贸易更大发展的因素,如储运和金融手段的滞后等.