Moving to and Living in a Retirement Home

Abstract

Bad health combined witii deteriorating physical functions force many elderly people to move to a retirement home. The primary focus of this study was to investigate the resident's experience of safety and security. From a sample of 57 residents, 12 persons volunteered to participate in the interview. Data were analyzed with qualitative content analysis. The standard and design of the participant's previous home made mobility difficult and this affected their sense of security. This motivated them to move into an environment where they felt more secure. The environment at the retirement home was predominantly described as secure and safe. The finding shows that the participants felt that safety and security were more important than independence.     

商事登记的几个基本理论问题

商事登记是指登记申请人按照法律规定向主管机关提出旨在确认商事主体的主体资格、营业资格及其他重大事项的申请，并由主管机关依法对申请事项审核登记的一系列法律行为。商事登记过程中行政机关的登记行为应为行政确认，而非行政许可。商事登记的价值取向为安全和效率，其中效率优先，兼顾安全，正确认识二者之间的关系对商事登记立法及实践意义重大。     

An MM Algorithm for Constrained Estimation in a Road Safety Measure Modeling

We model the effect of a road safety measure on a set of target sites with a control area for each site, and we suppose that the accident data recorded at each site are classified in different mutually exclusive types. We adopt the before–after technique and we assume that at any one target site the total number of accidents recorded is multinomially distibuted between the periods and types of accidents. In this article, we propose a minorization–majorization (MM) algorithm for obtaining the constrained maximum likelihood estimates of the parameter vector. We compare it with a gradient projection–expectation maximization (GP-EM) algorithm, based on gradient projections. The performance of the algorithms is examined through a simulation study of road safety data.     

我国农户兼业经营实证分析

农村改革后,农户兼业成为普遍现象,兼业既解决了农村剩余劳动力问题,又提高了农民收入.但兼业的程度又受文化、年龄、性别、地域的制约.兼业的不平衡性使农户收入产生了差距,同时又给粮食生产带来影响.因此要对农户兼业发展予以控制引导,使之朝着有利于社会可持续发展的方向运行.     

The volatility of the socially optimal level of investment

In this paper, an annual series for the socially optimal level of investment from 1960–1961 to 1993–1994 for Australia is derived from a vintage production function and compared to the actual series for investment over the same period. The vintage production function can be expected to yield a smoother socially optimal investment series than that derived from a nonvintage, homogenous capital production function. Even so, the resulting series for socially optimal investment is much more volatile than the series for actual investment. Several alternative assumptions are tried in an attempt to further smooth the socially optimal investment series. These include smoothing the assumed values of the exogenous variables, modelling adjustment costs and delivery lags, and changing the form of the production function. While these approaches do succeed in smoothing the investment series, in order for the socially optimal investment series to be as smooth as the actual series the assumed values of the parameters must be quite unrealistic. In the conclusion, we suggest that, in the future research on the socially optimal level of investment, the role of liquidity constraints and of irreversible investment should be investigated.     

Dynamic scheduling of steel casting and milling using multi-agents

This paper presents a case study on the use of multi-agents for integrated dynamic scheduling of steel milling and casting. Steel production is an extremely complex problem requiring the consideration of several different constraints and objectives of a range of processes in a dynamic environment. Most research in steel production scheduling considers static scheduling of processes in isolation. In contrast to earlier approaches, the multi-agent architecture proposed consists of a set of heterogeneous agents which integrate and optimize a range of scheduling objectives related to different processes of steel production, and can adapt to changes in the environment while still achieving overall system goals. Each agent embodies its own scheduling model and realizes its local predictive-reactive schedule taking into account local objectives, real-time information and information received from other agents. Agents cooperate in order to find a globally good schedule, which is able to effectively react to real-time disruptions, and to optimize the original production goals whilst minimising disruption carried by unexpected events occurring in real-time. The inter-agent cooperation is based on the Contract Net Protocol with commitment.     

Monitoring the production of a supply chain with a revisited MRP approach

This paper examines the centralised monitoring of an upstream supply chain (USC) in the context of a mass customisation production system. We propose an adaptation of the material requirement planning framework to manage demand uncertainty at each stage of the USC. New analytical relations that exploit structural information on demand beyond the frozen horizon are developed for efficient decision-making and appropriate information sharing among the productive supply chain units. A numerical example to illustrate the implementation of the new analytical relations is provided, and a synthesis of benchmarks performed in the automotive industry is presented.     

知识生产模式转型与大学教学改革

随着知识经济的到来和高等教育大众化的实现，知识生产呈现出模式转型的趋势，对大学的教学也提出了新的要求与挑战。为适应新的知识生产模式，大学应当优化课程内容，增加实践性和跨学科课程内容，要采取以学生为中心的教学方式，要加强与社会的合作与联系，创新质量评价模式。