同源异流的回族——福建泉州回族与西北回族比较

回族分布在全国各地,不同地区的回族文化又都具有所在区域的地方特色。福建泉州回族与西北回族在文化上有很大的差异。本文试图对福建泉州回族与西北回族作一比较,并对泉州回族汉化的原因作一探讨。     

铁路车站设施建设与旅客游憩活动——以上海站和杭州东站为例

通过对铁路上海站和杭州东站的实地考察,以及问卷调查分析,着重探讨铁路车站设施现状与旅客游憩活动的需求关系,为进一步研究铁路车站旅游功能与模式的开发提供参考。     

Structural changes in the receiving country and future labor migration--the case of Kuwait

This article describes changes in the volume, age and sex composition, retention, productivity, types of occupation, and economic sector of the labor force in Kuwait. The focus is on the structural changes in the indigenous labor force. Data were obtained from censuses and labor force surveys during 1965-93. Policies after the 1990 invasion pertained primarily to security of public employment sector among natives. Over 98% of private sector employment is among non-Kuwaitis. Government programs support high fertility. Female illiteracy has declined, and the proportion of women with a higher education has increased. Natives comprised 20.4% of the total labor force in 1993. About 90% of native males work in the public sector. 45% of total male employment is in the production sector. Around 50% of non-Kuwaiti males have been employed in production work over the decades. Over 90% of Kuwaiti females in 1993 worked in professional or clerical work. Over 50% of total female labor force participation is in the service sector. Concentration in the public sector increased for Kuwaitis and declined for non-Kuwaitis. Labor force participation declined with increasing age. Retirement benefits encouraged early retirement. The private sector is experiencing the departure of long-term migrants and more rapid turnover of labor. Hours of work are longer in the private sector. Kuwait is still dependent on foreign workers in the production and service industries. It is likely that native male workers will replace foreign workers in professional work and administrative/clerical work. Policies that will assure future reliance on imported labor include the assurance of government jobs for Kuwaitis, retirement rules, and the profitability of the trade in labor.     

On uniformly better combined estimates in row-column designs with adjusted orthogonality

In this note we present a simple procedure for obtaining combined estimates of treatment effects in row-column designs with adjusted orthogonality which are better than the fixed effects model estimates in the sense of having a smaller variance uniformly for all values of the variance components.     

Interval estimation of the common mean

Brown and Cohen (1974) considered the problem of interval estimation of the common mean of two normal populations based on independent random samples. They showed that if we take the usual confidence interval using the first sample only and centre it around an appropriate combined estimate of the common mean the resulting interval would contain the true value with higher probability. They also gave a sufficient condition which such a point estimate should satisfy. Bhattacharya and Shah (1978) showed that the estimates satisfying this condition are nearly identical to the mean of the first sample. In this paper we obtain a stronger sufficient condition which is satisfied by many point estimates when the size of the second sample exceeds ten.     

Analysis of binary data for the balanced one-way classification

A test is proposed for testing the equality of proportions based on the data available from a one-way classification having t treatment conditions and n binary observations per treatment. The test statistic B is a constant multiple of the F-statistic which results when the analysis of variance procedure for the one-way classification is applied to the data and, hence, is computationally simple. The statistic B from this binary analysis of variance (BIANOVA) is distributed asymptotically as a chi-square random variable. The proposed test is uniformly more powerful than either the F-test indicated above or the Pearson chi-square test; however, the attained empirical level of significance is frequently higher than for either of these competitors and usually higher than the stated level of significance for smaller values of n (say n ≤ 20).     

A combined optimization and agent-based approach to supply chain modelling and performance assessment

The main objective of this paper is to give an example of how expert systems techniques for distributed decision-making can be combined with contemporary numerical optimization techniques for the purposes of supply chain optimization and to describe the resulting software implementation. In this paper, multi-agent modelling techniques are applied to simulate and control a simple demand-driven supply chain network system, with the manufacturing component being optimized through mathematical programming. The system measures supply chain performance and the effect of different parameters in the replenishment control system, and can be used to simulate the behaviour of a system that uses optimization for part of its decision-making. The objective of this supply chain network system is to reduce operating cost, while maintaining a high level of customer order fulfilment.