门店选址对大型综合超市经营绩效的影响分析

本文从大型综合超市的特点及其对门店选址的要求出发，分析了门店选址对大型综合超市所产生的收入性和成本性双重影响。就收入性影响而言，门店选址的好坏对大型综合超市的客流量、商品组合及商品档次等将产生直接的影响；就成本性影响来说，门店选址将从租金、宣传费、管理成本等方面产生直接的影响。因此，大型综合超市的选址应注重自身特性并关注其影响经营效绩的各个方面。     

师范院校教育学专业培养目标的改革与反思

在高校大扩招和教师教育体系转型的背景下，本科教育学专业的培养目标定位日益成为教育学者、院系领导、学生乃至中小学校备受关注的问题之一。本文首先梳理检视了教育学专业（系科）自诞生以来培养目标定位之演变，继而概括分析了近年来新出现的定位改革方向及问题，在此基础上提出了分层分类推进改革的路径。     

On increasing the sensitivity of mixed EWMA–CUSUM control charts for location parameter

Control chart is an important statistical technique that is used to monitor the quality of a process. Shewhart control charts are used to detect larger disturbances in the process parameters, whereas cumulative sum (CUSUM) and exponential weighted moving average (EWMA) are meant for smaller and moderate changes. In this study, we enhanced mixed EWMA–CUSUM control charts with varying fast initial response (FIR) features and also with a runs rule of two out of three successive points that fall above the upper control limit. We investigate their run-length properties. The proposed control charting schemes are compared with the existing counterparts including classical CUSUM, classical EWMA, FIR CUSUM, FIR EWMA, mixed EWMA–CUSUM, 2/3 modified EWMA, and 2/3 CUSUM control charting schemes. A case study is presented for practical considerations using a real data set.     

国外电磁篱笆建设要素分析

日益增长的空间碎片对航天器和有限的轨道资源构成了严重的威胁,电磁篱笆是功率强大的地球中低轨道空间碎片监测设备.文中就国际上具有代表性的电磁篱笆,即美国和法国的电磁篱笆在建设过程中考虑的要素进行了详细分析,主要从地理位置、空域监视屏几何形状、性价比这3个方面因素进行了对比,并归纳了各自设计中的特点和优势.最后就国外电磁篱笆的发展趋势进行了分析和总结.     

高校出版社转制重点问题探析

高校出版社从事业单位向企业转换的过程中面临着一些问题，如何解决或处理好这些问题关系到高校出版社改革发展的前途与命运。在转制过程中两个较为突出的重点问题是：如何解决高校出版社的定位和市场之间的矛盾问题、如何解决高校事业单位定位和出版社企业定位之间的关系问题。     

Likelihood ratio test for discordancy with slippage alternatives

A likelihood ratio test for discordancy in the sample is considered with slippage alternatives. It is shown for a wide class of univariate distributions that only the extreme observations in the sample need to be tested for discordancy. This result provides a firmer support to many commonly used discordancy tests that take only extreme observations as candidates. The problem of testing multiple discordant observations is also discussed.     

Self-perceived occupational stress and distress in a Scottish police force

Abstract

This paper describes an empirical study (n = 699) of occupational stress in a Scottish police force. The self-perceived stress associated with a variety of organizational and opearational stressors was examined along with the associated distress in the police officers in terms of symptoms of anxiety, somatic complaint, severe depression and social dysfunction. The analysis revealed that in spite of the potential that police work offers for exposure to adverse opeational situations such as violence or death, the highest levels of associated stress lie in relation to organizational factors such as officers' perceptions of staff shortages, inadequate resources, time pressures, lack of communication and work overload. Differential rates of perceived stress are reported accordng to gender, rank and working location. This paper further validates previsous research on stress in British police and addresses the situation from a Scottish perspective.     

Locative Mobile Social Networks: Mapping Communication and Location in Urban Spaces

Abstract

This study conceptualizes the new spatial logic created by the social use of location aware mobile technologies, analyzing how mobile communities are formed by the mapping of social networks in urban spaces. It explores two main areas with the goal of understanding how locative mobile social networks (LMSNs) challenge the traditional logic of networks. First, it conceptualizes LMSNs by comparing them to (1) traditional transportation and communication networks, and (2) mobile social networks (MSNs). Second, the paper discusses potential social implications of LMSNs, such as privacy, surveillance, and social exclusion.     

Location and scale parameter estimation from randomly censored data

The problem of location and scale parameter estimation from randomly censored data is analyzed through use of a regression model for the Kaplan-Meier quantlle process. Continuous time regression techniques are employed to construct estimators that are both asymptotically normal and efficient. Estimators with a particularly simple form are obtained for the Koziol-Green model for random censorship. In the event of no censoring the regression model, and resulting estimators, reduce to those proposed by Parzen (1979 a, b).     

On accelerating sequential procedures for estimating exponential populations

In this study, we accelerate the purely sequential procedure due to Anscombe(1953), Chow and Robbins(1965) to reduce the number of sampling operations required to carry out the estimation process. The method is proposed while estimating the location parameter(s) of the exponential distribution(s). We also develop theory for the asymptotic characteristic of the associated stopping variables. Our findings are applicable to both point as well as confidence interval estimation problems. Other interesting results are also given.